} 7. Qa8+ Kd4 (7... Kf5 8. Qd5+ Kg4 9. Qg5+ Kf3 10. Qg3+ Ke4 11. Qe3+ Kf5 12. Qe6+) 8. Qa7+ $1 Kc3 9. Qa3+ Kc2 10. Qa2+ Kc3 11. Bd2+ $1 (11. Be5+ $2 { Black defends himself with a chain of only moves} Kb4 12. Qb2+ Ka4 $1 13. Qc2+ Ka5 $1 (13... Kb5 $2 14. Qb3+ Ka5 15. Bc3+ Ka6 16. Qa4+ Kb7 17. Qc6+ Kb8 18. Qc7+ Ka8 19. Qc8+ Ka7 20. Bd4#) 14. Qc3+ Ka4 $1 (14... Ka6 15. Qc6+ Ka5 16. Bc3#) 15. Qc2+ Ka5 16. Bc3+ Kb6 17. Bd4+ Ka5) 11... Kd3 12. Qa6+) 7. Qa8 $3 (7. Qf6+ $6 Kg3 $1 $11 {with stalemate on h1} (7... Ke3 $2 8. Ke5 Ke2 9. Qa6+ Ke1 10. Qa5+ Ke2 11. Qb5+ Ke1 12. Qb1+ Ke2 13. Qe4+ Kd2 14. Qf3 Ke1 15. Qe3+ Kf1 16. Kf4)) (7. Qh4+ $6 Kf3 8. Qh3+ Ke2 9. Qg2 Ke1 $11) 7... Kg3 8. Qh1 1-0 [Event "5th pr PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Sedlak=L"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/4K3/4p3/4p3/4k3/8/1P5P/8 w - - 0 1"] [PlyCount "13"] [EventDate "2021.??.??"] {This unusual study has basically one-move-solution, but excellent one. Maybe more interesting is is “magic” starting position which has a chance to appear on the front page of prestigious publications.} 1. Ke8 $3 {This shocking move prevents Black promotion with a check.} (1. h4 $2 Kf5 2. b4 e4 3. b5 e3 4. b6 e2 5. b7 e1=Q 6. b8=Q Qxh4+ 7. Kd7 (7. Kf7 Qh7+) 7... Qd4+ 8. Kc6 Qd5+ $19 {with the exchange of queens}) (1. b4 $2 Kd5 2. h4 e4 3. h5 e3 4. h6 e2 5. h7 e1=Q 6. h8=Q Qxb4+ 7. Kf7 Qf4+ 8. Kg6 Qf5+ $19 {with the exchange of queens}) (1. Kxe6 $2 Kd4 2. h4 e4 3. h5 e3 4. h6 e2 5. h7 e1=Q+) (1. Kd6 $2 Kf5 ({or} 1... Kf4) 2. b4 e4 3. b5 e3 4. b6 e2 5. b7 e1=Q 6. b8=Q Qe5+) (1. Kd7 $2 Kd5 ({or} 1... Kd4) 2. h4 e4 3. h5 Ke5 4. Ke7 Kf5) 1... Kd5 ({main} 1... Kf5 2. b4 e4 3. b5 Ke5 4. Kd7 e3 5. b6 e2 6. b7 e1=Q 7. b8=Q+ $11) 2. h4 e4 3. h5 Ke5 (3... e3 4. h6 e2 5. h7 e1=Q 6. h8=Q) 4. Kf7 e3 5. h6 e2 6. h7 e1=Q 7. h8=Q+ 1/2-1/2 [Event "?"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "***** Honourable Mentions"] [Black "?"] [Result "*"] [PlyCount "0"] [EventDate "2021.??.??"] * [Event "1st hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Arestov=P Kiryakov=P"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "6kr/3n3p/4RP2/8/3p4/5K2/8/8 w - - 0 1"] [PlyCount "27"] [EventDate "2021.??.??"] {The kernel of the study is probably derived from EGTB, but the whole game is still very interesting and humanly understandable without a computer. The mutual zugzwang and its incitement are surprising.} 1. Re8+ Nf8 2. Re7 Ng6 3. Rg7+ ({JP no time for} 3. Ra7 $2 h5 $1 4. Rg7+ Kf8 5. Rxg6 Kf7 $1 6. Rg5 h4) 3... Kf8 4. Ke4 ({JP The pawn must be stopped with the king} 4. Ra7 $2 d3 $1 ( 4... h5 $2 5. Ke4 h4 6. Kf5 h3 7. Ra8+ Kf7 8. Ra7+ $11) 5. Ke4 d2 6. Rd7 d1=Q 7. Rxd1 Kf7 8. Kf5 Ra8 9. Rd7+ Kg8 10. Rg7+ Kh8 $19) 4... d3 $1 {Else the king is quick enough to hold} (4... Nh4 5. Ke5 d3 6. Ke6 Ng6 7. Ra7 Nf4+ 8. Kf5 d2 9. Rd7 $11) 5. Kxd3 Nf4+ (5... Ne5+ 6. Ke4 Nf7 7. Kd5 {EGTB7 draw}) 6. Ke4 Nh5 {With this manoeuvre Black unbound himself and somewhat coordinates his forces. } 7. Rb7 $3 {The highlight of the study} (7. Ra7 $2 Nxf6+ 8. Kf5 Ne8 $1 { mutual zugzwang} 9. Kg5 (9. Rb7 Nd6+ {fork}) (9. Rd7 h5 10. Kg6 Rg8+ 11. Kxh5 Nf6+ {fork}) 9... Nd6 $1 10. Rd7 Rg8+ 11. Kh6 (11. Kh5 Nf7) 11... Nf7+ 12. Kxh7 Rg7#) (7. Rc7 Nxf6+ 8. Kf5 Ng8 $3 9. Ke6 (9. Kg5 Ne7 10. Kf6 Nd5+ {fork}) 9... h5) 7... Nxf6+ 8. Kf5 Ne8 $5 (8... Ng8 9. Kg5 Ne7 10. Kf6 Ng8+ 11. Kg5 h5 12. Kh4 Nf6 13. Kg5) 9. Ra7 $3 {mutual zugzwang} h5 (9... Nd6+ 10. Ke6 Ne4 11. Ke5) 10. Kg6 $1 h4 11. Rf7+ Kg8 12. Re7 Nd6 13. Re6 $1 {The final finesse} (13. Rd7 Nf7 14. Rxf7 Rh6+) 13... Rh7 14. Rxd6 1/2-1/2 [Event "2nd-3rd hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Hlinka=M Kekely=L"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/3P1N2/1b2P3/3B3p/4n3/4P2k/4rP2/6K1 w - - 0 1"] [PlyCount "23"] [EventDate "2021.??.??"] {It is always nice when the study does not end with an underpromotion, but the born piece takes part in an interesting play.} 1. Ng5+ $1 {White clears the diagonal d5-h1 to prevent the threat 1...Re1 mate.} (1. Bxe4 $2 Re1#) (1. Bc4 $2 Rxf2 2. Ng5+ (2. e7 Bxe3 $19) 2... Nxg5 3. Kxf2 Bd8 $11) (1. e7 $4 Re1#) 1... Nxg5 (1... Kg4 2. Bxe4 Rxe3 3. e7) 2. Bg2+ (2. Kf1 $2 Rxf2+ 3. Kxf2 Bd8 $19) 2... Kh4 {Preparing a stalemate} (2... Kg4 3. e7 Re1+ 4. Kh2 Bc7+ 5. f4 Bxf4+ (5... Rxe3 6. e8=Q {the simplest}) 6. exf4 Nf3+ 7. Bxf3+ {check, compare to main line.}) 3. e7 Re1+ 4. Kh2 (4. Bf1 $2 Nf3+ 5. Kg2 Kg4 6. e8=Q Nh4+ 7. Kh2 Nf3+ {perpetual check}) 4... Bc7+ 5. f4 Bxf4+ $1 (5... Rxe3 6. e8=Q Bxf4+ 7. Kg1 $18) 6. exf4 Nf3+ $1 7. Bxf3 Rxe7 8. d8=R $1 {The point; White avoids stalemate first time.} (8. d8=Q $2 {pin stalemate}) 8... Rd7 $1 9. Re8 $1 { The promoted rook executes a logical manoeuvre preventing Rd2.} (9. Rg8 $2 Rd2+ 10. Kg1 (10. Bg2 Rxg2+ {with stalemate}) 10... Rd4 $11 11. f5 Rf4) (9. Rxd7 $2 {stalemate}) (9. Ra8 $2 Rd4 10. Rf8 Rd8) (9. Rf8 $2 Rd8 $1 10. Rf5 (10. Rxd8 { stalemate}) 10... Rd2+ 11. Bg2 (11. Kg1 Kg3) 11... Kg4 12. Rf8 Rf2 13. f5 Kg5 $1) 9... Re7 (9... Rd2+ {is not problem for White here because of} 10. Be2 $1) (9... Rf7 $2 10. Rh8) 10. Rg8 $1 (10. Rd8 Rd7 11. Re8 Re7 12. Rg8 {is only waste of time}) (10. Rxe7 $2 {stalemate}) (10. Ra8 $2 Re2+ 11. Kg1 (11. Bg2 Kg4 ) 11... Rc2 $3 {preventing White to guard the first rank} (11... Rb2 12. f5 Kg3 13. Be4) (11... Rd2 12. f5 Kg3 13. f6) 12. f5 Kg3 13. Bd1 Rg2+ 14. Kh1 (14. Kf1 Rf2+ 15. Ke1 Rxf5) 14... Rh2+ $1 $11) 10... Rf7 (10... Re2+ 11. Kg1 $1 $18 (11. Bxe2 $2 {stalemate})) (10... Rg7 11. Ra8 ({or} 11. Rb8) 11... Rc7 (11... Ra7 12. f5 $18) 12. Be4 Rc4 13. Re8 $18) 11. Rh8 $1 (11. Rg5 $2 Rf5 $1 12. Rxf5 { stalemate}) 11... Rxf4 (11... Rf5 12. Kg2 Ra5 13. Re8 Rf5 14. Re5 Rg5+ 15. Kf2 $18) 12. Rxh5# 1-0 [Event "2nd-3rd hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Gatti=D"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "1B6/1P6/P7/8/7b/7K/P7/1r3rk1 w - - 0 1"] [PlyCount "23"] [EventDate "2021.??.??"] {Similar concept to the previous Hlinka+Kekely study. Interesting collection of stalemates and the play of promoted rook. But the introductory side-lines are a little boring.} 1. Bh2+ {Clearing way for pawns and the same time driving Black King into the corner.} (1. a7 $2 Rf3+ 2. Kg4 Kf2 3. a8=Q Rb4+ 4. Kh5 Be7 $1 {White can avoid perpetual by sacrificing} 5. Ba7+ Ke2 6. Qc8 ({JP} 6. Bd4 Rxd4 7. Qa6+ Kd1 8. b8=Q Rh4+ 9. Kg6 Rg4+ 10. Kh7 Rh4+ 11. Qh6 Rxh6+ 12. Kxh6 Ba3 $1 $11) 6... Rb5+ 7. Bc5 Rxc5+ 8. Qxc5 Bxc5 9. b8=Q {but Black holds the QPxRB endgame} Ba3 $1 $11 10. Qh2+ Kd3 $1 (10... Ke3 $2 11. Kg4) 11. Kg4 Re3 $1) 1... Kh1 2. a7 Rf3+ 3. Kxh4 (3. Kg4 $2 {White tries to avoid stalemate, but it does not win} Rf8 4. a8=Q (4. b8=Q Rfxb8 5. Bxb8 (5. axb8=Q Rxb8 6. Bxb8 Kg2 $11) 5... Rb4+ 6. Bf4 Ra4) 4... Rb4+ 5. Kh5 Rf5+ 6. Kg6 Rf6+ 7. Kg7 Rg4+ 8. Kh7 Rf7+ 9. Kh6 Rg2 $1 10. b8=Q (10. b8=R Bg5+ 11. Kg6 Rf6+ 12. Kg7 Kxh2 13. Rh8+ (13. Rb5 Rf4 ({or} 13... Rff2)) 13... Bh4+ 14. Qxg2+ Kxg2 15. Rxh4 Ra6 $11 ) (10. Be5 Bf2 11. b8=Q Be3+ 12. Bf4 Bxf4+ 13. Qxf4 Rxf4 $11) 10... Rf6+ 11. Kh5 Rf5+ 12. Kxh4 Rh5+ 13. Kxh5 {pat}) 3... Rh3+ 4. Kxh3 (4. Kg4 $2 {Another try to avoid stalemate} Rxh2 5. a8=Q (5. b8=Q Rg1+ 6. Kf3 Rh3+ (6... Rf1+ $11)) 5... Rg1+ 6. Kf4 Rh4+ {It is not a perpetual check, Black escapes via b8-a7, so more detailed analysis is needed. Black founds a study rescue.} 7. Ke5 Rh5+ 8. Kd6 Rh6+ 9. Kc7 Rg7+ $1 10. Kb8 Rh8+ 11. Ka7 Rxa8+ 12. Kxa8 Rg2 $1 13. b8=Q Rxa2+ 14. Kb7 Rb2+ $11) 4... Rxb7 5. a8=R $1 (5. a8=Q $2 {pat}) (5. Bb8 $2 Rxa7 6. Bxa7 {stalemate}) (5. Bg1 $2 Rxa7 6. Bxa7 {stalemate}) 5... Ra7 6. Rf8 $1 { For the future Rf3} (6. Rb8 $2 Rh7+ 7. Kg3 (7. Kg4 Ra7 8. Kg3 Ra3+ 9. Rb3 Rxb3+ 10. axb3 {stalemate}) 7... Rh3+ 8. Kg4 Ra3 9. Rb2 Rxa2 10. Rxa2 {stalemate}) 6... Rh7+ 7. Kg4 $1 (7. Kg3 $2 Rh3+ 8. Kg4 Ra3 9. Rf2 Rxa2 10. Rxa2 {stalemate} ) 7... Ra7 (7... Kxh2 8. a4 Ra7 9. Rf2+ $1 Kg1 10. Ra2 {win, e.g.} Kf1 11. a5 Ke1 12. a6 Kd1 13. Kf4 Kc1 14. Ke5 Kb1 15. Ra5 Kb2 16. Kd6 Kb3 17. Kc5) 8. Kg3 Rf7 (8... Ra3+ 9. Rf3 {The point of 6.Rf8!} Rxf3+ 10. Kxf3 {no stalemate here.} ) (8... Rg7+ 9. Kf3 Kxh2 10. a4) 9. Rb8 Rb7 10. Kf3 {wins, e.g.} Ra7 11. Bf4 ({ or} 11. Be5 Rf7+ 12. Kg3) ({or} 11. Bd6) ({or} 11. Bg3) 11... Ra3+ (11... Rxa2 12. Rb1#) 12. Rb3 1-0 [Event "4th hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Hlinka=M Kekely=L"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "6k1/R2K4/p6p/8/8/5n2/2B3p1/8 w - - 0 1"] [PlyCount "31"] [EventDate "2021.??.??"] 1. Bb3+ $1 ({It is not easy to stop Black pawns, for example} 1. Ra8+ $2 Kg7 2. Re8 g1=Q 3. Re7+ Kf6 4. Re6+ Kg5 5. Rg6+ Kf4 6. Rxg1 Nxg1 $19) 1... Kh8 {main A } (1... Kg7 {main B} 2. Ke8+ $1 Kh8 (2... Kf6 3. Rxa6+ Ke5 4. Ra1 $11) 3. Ra8 $1 (3. Kf7 $2 Ne5+) 3... Ng5 (3... Ne5 4. Ke7+ Kh7 5. Rg8 Ng6+ 6. Kf6 ({or} 6. Kf7) 6... g1=Q 7. Rg7+ Kh8 8. Rg8+ Kh7 9. Rg7+ {perpetual check}) 4. Ke7+ Kh7 ( 4... Kg7 $4 5. Rg8+ Kh7 6. Kf8 h5 7. Bc2+ $18) 5. Bc2+ Kg7 6. Rxa6 g1=Q 7. Rg6+ Kh8 8. Rxh6+ Kg7 9. Rg6+ {perpetual check}) 2. Ra8+ Kh7 3. Bg8+ (3. Re8 $2 g1=Q 4. Bc2+ Kg7 $19 {as after 1.Ra8+?}) 3... Kg7 ({The judges found interesting also the try} 3... Kg6 $5 4. Bd5 g1=Q 5. Rg8+ Kf5 6. Rxg1 Nxg1 7. Kd6 $1 h5 8. Bb7 $1 a5 9. Bc8+ ({or} 9. Kc5 {transposing}) 9... Kf4 {Compare to the main line White won a tempo with a check, but the Black King has advanced significantly. The drawing motives are similar.} 10. Kc5 Nf3 11. Kb5 Ne5 12. Kxa5 Ng4 13. Kb4 h4 14. Kc3 h3 15. Kd2 h2 16. Bb7 Nf2 {And here a “novelty” } 17. Bg2 $1 $11) 4. Bd5 $1 (4. Be6 $2 {or Bb3?} Ng5 $19) 4... g1=Q 5. Rg8+ Kf6 6. Rxg1 Nxg1 7. Kd6 $1 {Controlling both wings.} (7. Kc6 $2 h5 {of course} 8. Kb6 h4 9. Kxa6 Ke5 {winning important tempo} 10. Bb7 h3 11. Kb5 h2 12. Kc4 Kf4 13. Kd3 Nf3 $19) 7... h5 8. Bb7 $1 {A familiar but impressive motive} a5 (8... h4 9. Bxa6 h3 10. Bb7 $1 h2 11. Bh1 $3 {nice move!} Nh3 12. Kd5 $11 {e.g.} Nf2 13. Bg2 Kf5 14. Kd4 Kf4 15. Bd5 $11) 9. Kc5 h4 10. Bc8 Nf3 11. Kb5 Nd4+ 12. Kxa5 Ne6 13. Kb4 $1 {precise diagonal defence} (13. Kb5 $2 h3 14. Kc4 Ke5 15. Kc3 h2 16. Bb7 Nc5 17. Bh1 Ne4+ 18. Kc2 Kf4 $19) 13... Ke5 (13... h3 14. Kc3 h2 15. Bb7 $11) 14. Kc3 h3 15. Kd2 h2 16. Bb7 1/2-1/2 [Event "5th hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Sprenger=J"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "4k3/8/3R4/B3N1K1/5P1p/4p3/1pr1q3/8 w - - 0 1"] [PlyCount "21"] [EventDate "2021.??.??"] {A very enjoyable work from a practical player with a lively play, understandable even without a computer. Unfortunately the composition has its principles, and one of them is the purity of a logical try, which should be refuted in only one way. Therefore, we cannot rate the study higher.} 1. Re6+ $1 {Because of the try - White modifies the attack so that the rook ends on column “e”.?} ({logical try} 1. Rd8+ Ke7 2. Ng6+ Kf7 $1 (2... Ke6 $4 3. f5+ Kf7 4. Rf8+ Kg7 5. f6+ Kh7 6. Rh8#) 3. Rd7+ Kg8 4. Kh6 Qh5+ $1 5. Kxh5 b1=Q 6. Kh6 Qb2 {/Da1} 7. Bc3 $6 Qxc3 8. f5 Qf6 {/Dc7,Rd2 covering both d8 and g7 But we have several problems with the logical try 1.Rd8+?!. Firstly the Nowotny 7.Bc3?? looks unnatural because it is a losing mistake; 7. f5 instead would be enough to hold. Secondly the logical try is refuted with three different moves. Even with a more liberal interpretation of purity of purpose - via “removal of a single obstacle” - it is not clear whether the obstacle is the d8 square or the two black pieces. And most importantly, regardless of these juridical loopholes, we are simply bothered by the moment subjectively.} ({or} 8... Qc7 $19) ({or} 8... Rd2 $19 {or}) 9. Rd8+ Qxd8 $1 $19 ) 1... Kf8 2. Ng6+ Kg8 3. Re8+ Kf7 4. Re7+ Kg8 5. Kh6 Qh5+ $1 {Black sacrifices the queen to gain time and access to the long diagonal after b2-b1Q. } 6. Kxh5 b1=Q 7. Kh6 Qb2 ({or} 7... Qa1 {with identical continuation}) 8. Bc3 $3 {Nowotny} ({thematic try} 8. f5 $2 {threatening Re8+ and Rf8#} Rc8 $1 9. Bc7 Qf6 10. Be5 Qf7 $1 $10) 8... Qxc3 (8... Rxc3 9. Rg7#) 9. f5 {Now Re8+/Rf8# cannot be parried without conceding control of the g7 square} Qf6 (9... Qc5 10. Rg7#) (9... Qh8+ 10. Nxh8 Kxh8 11. Re8#) 10. Re8+ $1 Kf7 11. Rf8# 1-0 [Event "6th hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Nielsen=S"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "7k/p6p/7K/6Pn/2p4B/5p1p/4r2q/2Q2R2 w - - 0 1"] [PlyCount "25"] [EventDate "2021.??.??"] 1. Qc3+ Qe5 2. Rxf3 Nf4 $5 ({The natural defence is refuted seemingly easily by } 2... Kg8 3. Qxc4+ Qe6+ 4. Qxe6+ (4. g6 $2 hxg6 5. Be7 g5+ 6. Rf6 Nxf6) 4... Rxe6+ 5. Kxh5 h2 6. Rh3 Kg7 {But White has suddenly problem to save his last pawn. He has to find a study way} 7. Bf2 $1 (7. Rxh2 $2 h6 $11) 7... h6 8. Bd4+ Kh7 9. Bf6 $1 {the point} hxg5 10. Kxg5+ Kg8 11. Kg6 Re1 12. Rh8#) (2... Qxc3 3. Rf8#) 3. Rxf4 Kg8 4. Qxc4+ Qe6+ 5. g6 $1 ({Compare to 2...Kg8, here things are reversed. Bad is here} 5. Qxe6+ $2 Rxe6+ 6. Kh5 {eg} h2 (6... Re2 $11) 7. Rf1 Re2) 5... hxg6 (5... h2 6. Qc8+ Qxc8 7. gxh7+ Kh8 8. Bf6#) 6. Be7 (6. Qd4 $2 Re5 $11) 6... g5+ (6... Qxc4 7. Rf8#) 7. Rf6 h2 8. Qd5 $3 {The point} (8. Rxe6 $2 h1=Q+ 9. Kg6 Qh7+ 10. Kxg5 Rg2+ $19) (8. Rg6+ Kf7 $11) 8... h1=Q+ 9. Qxh1 Qxe7 10. Qd5+ (10. Qa8+ Qe8 $11) 10... Kh8 11. Qa8+ Qe8 12. Rf8+ Qxf8+ 13. Qxf8# 1-0 [Event "7th hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Halski=M"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/5Bn1/1p6/p1n5/7P/K1P5/8/1k6 w - - 0 1"] [PlyCount "49"] [EventDate "2021.??.??"] {White King is in a mate net not to mention missing piece.} 1. h5 ({It would be wrong to try:} 1. Bg6+ $6 Kc1 2. h5 Nge6 3. h6 Nf8 {winning decisive tempo, e.g. or} 4. Bf5 b5 {after} 5. h7 Nxh7 6. Bxh7 Kd2 7. Kb2 Na4+ {win}) 1... Nge6 $1 ({According the author White have easier task after immediate:} 1... Nxh5 2. Bxh5 Kc2 3. c4 Kc3 4. Bf7 Nd3 5. Ka4 Kb2 6. Kb5 Nc5 7. Kxb6 a4 8. Kxc5 a3 9. Kb6 a2 10. c5 a1=Q 11. c6 Qg1+ 12. Kb7 Qg2 13. Kb6 {see comment to 16-th move in the main solution "Simple draw with Bf7".} (13. Bc4) 13... Qf2+ 14. Kb7 Qxf7+ ({But there is} 14... Qf3 $5 {not given by the author.} 15. Bc4 $1 ({ unfortunately also} 15. Bh5 $1 Qe4 (15... Qd5 16. Be2 Kc3 17. Kb6 Qb3+ 18. Bb5) 16. Be2 Kc3 17. Kb6) (15. Kb6 $2 Qe3+ 16. Kb7 Qe4 $1 17. Kb6 Qb4+ 18. Ka7 Qa5+ 19. Kb7 Qb5+) 15... Kc3 16. Be2 $3 {a similar motive as in the solution but unfortunately with duals. This somewhat reduces our impression from the logical construction of this interesting, but difficult composition.}) 15. c7 { draw}) 2. h6 ({Again it would be wrong:} 2. Bg6+ $2 Kc1 3. h6 Nf8 $1 {tempo}) 2... Nf8 $1 ({If} 2... Nc7 {then} 3. Bg6+ {guarding the threat Nb5 mate} Ka1 4. Bd3 $1 Nxd3 5. h7 Nc5 $4 6. c4 $1 $18 (6. h8=Q $2 Nb5#)) ({draw If} 2... Ng5 { then} 3. Bg6+ Kc1 4. h7 Nxh7 5. Bxh7 {etc as in the main solution}) 3. h7 ({ But not:} 3. c4 $2 Kc2 {winning tempo, Kc1 is not neccessary} 4. h7 Nxh7 5. Bg6+ Kc3 6. Bxh7 Kxc4 {Black win}) 3... Nxh7 4. Bg6+ Kc1 5. Bxh7 Kd2 6. c4 $1 ( {but not:} 6. Kb2 $2 Nd3+ {and Pc3 goes lost} 7. Kb3 b5 8. Bf5 a4+ 9. Ka3 Kxc3 {Black wins}) 6... Kc3 7. Bg8 Nd3 8. Ka4 ({but not:} 8. Bf7 $2 Nb2 $1 9. Be6 Nxc4+ 10. Ka4 Nb2+ $1 11. Kb5 a4 12. Ba2 a3 $1 13. Bf7 (13. Kxb6 Kb4 $1 { Black win}) 13... Nd3 $1 14. Bc4 Nc1 15. Bf7 Nb3 16. Ka4 a2 {Black win}) 8... Kb2 {Black try a sly manoeuvre with the sacrifice of a knight!} ({If} 8... Nc5+ {then} 9. Ka3 $1 ({but not:} 9. Kb5 $2 a4 {with win}) 9... Nd3 10. Ka4 $1 { positional draw} Kb2 11. Kb5) 9. Kb5 Nc5 10. Kxb6 a4 11. Kxc5 a3 {and Black promotes because White king blocks its pawn and White cannot open bishop a2-g8 diagonal on time} 12. Kb6 $1 ({But not} 12. Kd6 $2 a2 13. c5 a1=Q 14. c6 Qa3+ $1 15. Kd7 Qd3+ $1 16. Kc8 Qf5+ 17. Kb7 Qb5+ 18. Kc7 Kc3 $1 {Black wins}) 12... a2 13. c5 a1=Q 14. c6 Qg1+ ({If} 14... Qa8 {then} 15. c7 Qxg8 16. Kb7 $11) 15. Kb7 Qg2 $1 ({If} 15... Qxg8 16. c7 $11) 16. Bc4 $1 ({Now, due to Black's 1-st move, White bishop is on g8 instead of f7 square, and simple 16.Kb6 defense is not possible:} 16. Kb6 $2 Qxg8 {Black win}) (16. Be6 $2 Kc3 17. Kb6 Qb2+ (17... Qg1+ 18. Kb7 Qb1+ 19. Ka7) 18. Ka7 Qa3+ 19. Kb7 Qb4+ 20. Ka7 Qc5+ 21. Kb7 Qb5+ 22. Kc7 Kd4) 16... Kc3 $1 {It seems that Black's plan worked!?, but ...} 17. Bf1 $3 ({... White also have a trick up from their sleeve - unexpected bishop sacrifice; all other moves lose, for example:} 17. Ba6 $2 Kb4 $1 {Black win}) 17... Qb2+ ({after:} 17... Qe4 18. Kb6 $1 Qb4+ 19. Bb5 {=}) 18. Ka7 $1 (18. Ka6 $2 Qb8) 18... Qf2+ 19. Kb7 Qb2+ 20. Ka7 Qh2 21. Kb7 Qh1 22. Kb6 $1 Qh6 23. Kb7 $1 Qh1 24. Kb6 Qg1+ 25. Kb7 {draw} 1/2-1/2 [Event "?"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "***** Commendations"] [Black "?"] [Result "*"] [PlyCount "0"] [EventDate "2021.??.??"] * [Event "1st comm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "González=LM"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "3r4/8/8/5N2/6b1/k5K1/3N1P2/4n3 w - - 0 1"] [PlyCount "67"] [EventDate "2021.??.??"] {An extraordinarily comprehensive study, the full enjoyment of which requires a considerable investment of time. This weakens the artistic impression, especially in the context of the White duals, which are in a drawish study not a loss of time, but rather organic nature. What we appreciate - more than the play - is the positional draw itself.} 1. Nc4+ Kb3 $1 (1... Kb4 2. Ne5 $1 $11 Bxf5 (2... Rd5 3. Ne7) (2... Re8 3. Nxg4) (2... Rf8 3. Kxg4) 3. Nc6+ $11) 2. Na5+ Ka4 3. Nc6 $1 Rg8 $1 (3... Rc8 4. Nfe7 $1 $11) 4. Nce7 $1 (4. Nfe7 $2 Rg7) 4... Rg5 5. Kf4 Nf3 {A key position is reached by a clean introduction without changing pieces.} 6. Ne3 {(h6)} (6. Nd4 $2 Rg7 $1 7. Nxf3 Bxf3 8. Nf5 Rf7 $19) (6. Nd6 $2 Rg7) 6... Bh5 7. N3f5 $1 {Black with an extra rook cannot release his forces. So Black tries to engage his king, first via d2 (plan A) and then via c7 (plan B), but White always finds a way to stop him.} (7. N7f5 $2 Rg6 8. Ne7 Rf6+) 7... Ka3 $1 (7... Kb5 8. Nd4+ $11) (7... Ka5 {Black cannot start the plan B immediately here} 8. Ng3 $1 {JP this is really an easy draw} (8. Nc6+ Kb6 9. Ne5 $2 {EV According the author it is easy draw, but} (9. Nce7 {The only move leads to plan B}) 9... Rg2 $1 10. Nxf3 (10. Nd7+ Kc7 11. Nf6 Nd4 $1 $19) 10... Rxf2 {EGTB win}) 8... Bg4 9. Nc6+ Kb6 10. Nd4 $11) (7... Kb4 8. Nd5+ Kc5 9. Nf6 $11) (7... Rg2 {or Rg1} 8. Ng3 {immediate draw because Black no more has the feature Bg4}) 8. Ng3 (8. Nd6 $2 Rg4+) 8... Bg4 9. Ngf5 $1 (9. Nef5 $2 Rg6 $1 10. Ne3 Nh2 $19) 9... Kb2 $1 10. Ne3 {(h6)} Bh5 11. N3f5 $1 Kc1 $1 ({ JP} 11... Ka2 {The quickest way for Black to reach plan B.} 12. Ng3 Bg4 13. Ngf5 Ka3 14. Nh6 Bh5 15. Nhf5 Ka4 16. Ng3 Bg4 17. Ngf5 Ka5 {And compare to 7... Ka5? the phase of black engine is changed}) 12. Ng3 Bg4 13. Ngf5 $1 Kb1 $1 { The second key-position.} ({Black cannot continue his plan 13... Kd2?! because of forks} 13... Kd2 14. Nd4 {or Nh4} (14. Ne3 $2 Bh5 15. N7f5 Rg8 16. Nf1+ Ke1 17. N1g3 Bg6 18. Kxf3 Rf8 $19) 14... Rg7 15. Nef5 Bxf5 16. Nxf3+ $1 Ke2 17. Nd4+ Kd3 18. Nxf5 $11) 14. Ne3 {(h6)} Bh5 15. N3f5 $1 Ka2 $1 16. Ng3 Bg4 17. Ngf5 $1 Ka3 $1 18. Ne3 {(h6)} Bh5 19. N3f5 $1 Ka4 $1 20. Ng3 Bg4 21. Ngf5 $1 ( 21. Ne4 $2 Rg7 22. Nd5 Ne1 $19) 21... Ka5 $1 22. Nc6+ {It speeds up things.} ({ White can also wait for Kc7} 22. Ne3 {(h6)} Bh5 23. N3f5 Ka6 24. Ng3 Bg4 25. Ngf5 {leading to the same position}) 22... Ka6 23. Nce7 $1 {It is not possible to turn-off} (23. Ncd4 $2 Nxd4 $1 24. Kxg5 Bxf5 $19) (23. Nh4 $2 Rc5 $1 24. Kxg4 Nxh4 25. Kxh4 Rxc6 $19) 23... Kb7 24. Nd6+ $1 ({Again a quicker way, possible is still} 24. Ne3 {(h6)} Bh5 25. N3f5 Kc7 26. Ng3 Bg4 27. Ne4 { transposing to the main}) 24... Kc7 25. Ne4 $1 (25. Ndf5 $2 Kd7 26. Ne3 Bh5 $1 $19 27. N3f5 Ke6) 25... Re5 $1 (25... Rg7 26. Nf6 $1 {The effect of Kc7 - White consolidates pieces}) 26. Nf6 $1 (26. Ng6 $2 Re6 $1 27. Nf8 (27. Kxg4 Nd4 $1) 27... Re8 28. Nh7 Bh5 29. Nhf6 Rf8 30. Ke3 Bg6 $1 31. Kxf3 Bxe4+ $19) 26... Be6 $1 {Launches the final tactical battle} ({Worse is} 26... Bd7 27. Kxf3 Rxe7 (27... Kd6 28. Neg8 $1 $11) 28. Nd5+ $11) 27. Kxf3 Kd6 28. Kf4 $1 (28. Neg8 $2 Bxg8 29. Nxg8 Re6 $1 $19) 28... Ra5 29. Neg8 $1 Rf5+ 30. Ke3 $1 (30. Ke4 $2 Rxf2 $19) (30. Kg3 $2 Bxg8 31. Nxg8 Rg5+ $19) 30... Bxg8 (30... Bf7 31. Ne4+ $1 $11) 31. Nxg8 Ke6 32. Nh6 Rh5 33. Ng4 Kf5 34. f3 1/2-1/2 [Event "2nd comm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Sedlak=L"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "4K3/4R3/8/4p3/2p1k1p1/8/8/8 w - - 0 1"] [PlyCount "21"] [EventDate "2021.??.??"] {Very interesting symmetric position with anti-symmetric solution} 1. Kf7 ({try } 1. Kd7 Kd5 2. Re6 (2. Rg7 c3 3. Rxg4 e4 $1 4. Rg3 Kd4 5. Ke6 e3 6. Kf5 e2) 2... c3 3. Rc6 Kd4 4. Rd6+ Ke3 ({or} 4... Ke4) 5. Rc6 Kd3 $1 (5... Kd2 $2 6. Ke6 e4 7. Kf5 e3 (7... g3 8. Kxe4) 8. Rd6+ Kc2 9. Re6 Kd2 10. Rd6+ $11) 6. Rd6+ Ke2 7. Re6 (7. Rc6 g3) 7... c2 8. Rxe5+ Kd3 9. Rd5+ Kc4 10. Rd6 (10. Kd6 g3 11. Rg5 g2) 10... g3) 1... Kf5 {main A} ({main B} 1... g3 2. Kf6 g2 3. Rxe5+ (3. Rg7 $2 Kf3 4. Kxe5 c3) 3... Kf3 4. Rf5+ Kg3 5. Rg5+ Kf3 6. Rf5+ {perpetual check}) ({main C} 1... c3 2. Kf6 (2. Rc7 $2 Kd3 3. Rd7+ Ke2 4. Rc7 g3 5. Rxc3 g2 6. Rc2+ Kf3 7. Rc3+ Kf2 8. Rc2+ Kg3 9. Rc3+ Kh2 10. Rc2 Kh1) 2... c2 3. Rc7 Kd3 4. Rd7+ $1 Ke3 5. Rc7 $1 Kd3 6. Rd7+ Kc3 7. Rc7+ Kb2 8. Kxe5 $1 {Only after a delay of 5 moves can this pawn be eaten.} (8. Rb7+ $2 Kc1 9. Kxe5 g3 10. Ke4 (10. Kd4 Kd1 $1 (10... Kd2 $2 11. Rc7 g2 12. Rg7 c1=Q 13. Rxg2+)) 10... g2 11. Rg7 Kb1 12. Rb7+ Ka2 13. Ra7+ Kb3 14. Rb7+ Kc3 15. Rc7+ Kd2 16. Rd7+ Ke1 ) 8... g3 9. Kd4 $1 {Guarding c3} g2 10. Rb7+ Kc1 11. Rg7 Kd1 (11... Kb1 12. Rb7+ Ka2 13. Ra7+ Kb3 14. Rb7+ Ka4 15. Ra7+ $11 Kb5 $4 16. Ra1 $18) 12. Rxg2 c1=Q 13. Rg1+) 2. Ra7 $1 {this move is missing in the try} g3 (2... c3 3. Rc7) 3. Ra3 $1 {New possibility compare to the try.} Kf4 (3... e4 4. Rxg3) (3... g2 4. Rg3 e4 5. Rxg2 e3 6. Rc2) 4. Ke6 g2 5. Ra1 c3 (5... e4 6. Kd5) 6. Kd5 c2 7. Kc4 Ke3 8. Kc3 ({or} 8. Kb3) 8... Kf2 9. Kxc2 g1=Q 10. Rxg1 Kxg1 11. Kd3 1/2-1/2 [Event "3rd comm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Afek=Y"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "5k2/p4P1p/8/2P1P3/6K1/8/4n3/N1b5 w - - 0 1"] [PlyCount "23"] [EventDate "2021.??.??"] 1. c6 h5+ $1 2. Kh4 $1 ({not into fork} 2. Kxh5 Nf4+ 3. Kg4 Ne6 4. Nb3 Be3 5. Kf5 Kxf7 $19) 2... Nd4 (2... Nf4 3. c7 Ng6+ 4. Kxh5 Ne7 5. e6 {see main line.}) 3. c7 (3. Nb3 $2 Nf5+ 4. Kxh5 Be3 $1 5. c7 Ne7 6. e6 Bb6 7. Nd2 Bxc7 $19) 3... Nf5+ 4. Kxh5 Ne7 5. e6 Bf4 (5... Be3 6. Kg4 Bb6 7. Kf4 Bxc7+ 8. Ke4 Ng6 9. Nb3 $11) 6. Nb3 (6. Kg4 Bxc7) 6... Bxc7 7. Nc5 Kg7 8. Nd7 Ng6 9. f8=Q+ $1 (9. e7 Kxf7) 9... Nxf8 10. e7 $1 Nxd7 11. e8=N+ $1 Kf7 12. Nxc7 {Draw. Phoenix and a Giant Leap of the White Knight, who sacrifices himself to rise from the dead.} 1/2-1/2 [Event "4th comm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Nielsen=S"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/2r1p3/P6P/R3P3/6P1/1b2Pk1p/2pB4/6K1 w - - 0 1"] [PlyCount "19"] [EventDate "2021.??.??"] {Nice piece for solvers.} 1. a7 $1 ({One mystery directly on the start - 1.a7 or 1.h7?} 1. h7 $2 {Try} c1=Q+ 2. Bxc1 Kg3 $1 3. Bd2 Rc1+ {The bishop is lured from the diagonal e1-a5} 4. Bxc1 h2+ 5. Kh1 Bd1 $19) (1. Kh2 $4 c1=Q 2. Bxc1 Kxg4 3. Ba3 Rc2+ $19 4. Kh1 Rd2 5. Bb4 Rd1+ 6. Kh2 Bc2 7. h7 Be4 8. h8=Q Rh1#) 1... c1=Q+ 2. Bxc1 Kg3 (2... Rxc1+ 3. Kh2 $18) 3. Bd2 h2+ 4. Kh1 Rxa7 (4... Rc1+ $2 5. Bxc1 Bd1 6. a8=Q $1 {(compare to 1. h7?)}) 5. Be1+ (5. h7 $2 Bd5+ 6. Rxd5 Ra1+) 5... Kh3 6. h7 (6. Rxa7 Bd5+) 6... Ra8 (6... Rxa5 7. h8=Q+ $18) 7. Ra3 $1 {Typical Nielsen way of playing with overloaded pieces.} ({Try} 7. e4 $2 Rf8 8. h8=Q+ Rxh8 9. Ra3 Rb8 $11) (7. e6 $2 Rh8 8. Rh5+ Kxg4 9. Rxh2 Bd5+ 10. Kg1 Be4) 7... Rf8 ({main} 7... Bd5+ 8. e4+ Rxa3 9. h8=Q+ $18) 8. h8=Q+ Rxh8 9. Rxb3 Rf8 10. e4+ $18 1-0 [Event "5th comm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Richardson, Itay"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/8/5Q2/3p4/1K6/6N1/1ppR4/1kq1n3 w - - 0 1"] [PlyCount "11"] [EventDate "2021.??.??"] {Interesting but rather crude analysis. A more experienced composer would surely have found a form where he could have used the move 5...Qh1!! as a final.} 1. Ne4 $3 (1. Ka3 $2 d4 $1 {threating Qd1} 2. Ne4 (2. Qxd4 Nf3 $19) 2... Qd1 $1 3. Qxd4 Qf3+ 4. Ka4 (4. Nc3+ Ka1 5. Kb4 (5. Ka4 c1=Q $19) 5... Qa8 $1 {JP the simplest solution} (5... c1=Q $4 6. Qa7#) (5... b1=Q+ 6. Nxb1+ Kxb1 $19 {EV Very interesting position, surprisingly White cannot halt} 7. Qc4 Qb7+ 8. Ka5 Qa7+ 9. Kb5 c1=Q 10. Qb3+ Ka1 11. Rd1 Qb7+ 12. Ka4 Qxb3+ 13. Kxb3 Qxd1+) 6. Ne2 Nf3) 4... Ka1 (4... c1=Q $2 5. Rxb2+ Qxb2 6. Nd2+ $10) 5. Rxc2 Qa3+ $1 ( 5... Nxc2 $2 6. Qg1+ Ka2 7. Qg8+ Ka1 8. Qg1+ b1=Q 9. Qxb1+ Kxb1 10. Nd2+ $10) 6. Kxa3 Nxc2+ $19) (1. Nf1 $2 Qd1 $19) (1. Kb3 d4 2. Ne4 (2. Qxd4 Nf3) (2. Rxd4 Qe3+) 2... Nf3 3. Rd3 Qe1 4. Qxf3 Ka1) 1... Nd3+ $1 (1... dxe4 {after Black has no more d4 and Ka3 is strong enough to keep} 2. Ka3 Nf3 (2... Qxd2 $2 3. Qxb2#) (2... e3 $6 3. Qc3 $1 exd2 4. Qb3 Qd1 5. Qxb2#) 3. Re2 Qe3+ (3... e3 $2 4. Qc3 Ka1 5. Rxc2) 4. Rxe3 c1=Q 5. Rxf3 exf3 6. Qxf3 $10) (1... Qd1 2. Nc3+ { not only move} (2. Qd4) (2. Rxd1+ cxd1=Q 3. Nc3+ Kc2 4. Nxd1 b1=Q+ 5. Kc5 (5. Qb2+ $2 Qxb2+ 6. Nxb2 Nd3+ $1)) 2... Kc1 (2... Ka1 $2 3. Qa6#) 3. Rxd1+ cxd1=Q 4. Nxd1 b1=Q+ 5. Qb2+ Qxb2+ 6. Nxb2 Kxb2 7. Kc5 $10) (1... d4 $2 2. Qxd4 Nf3 3. Nc3+ Ka1 4. Qa7#) 2. Rxd3 (2. Ka3 $2 Qg1 $1 $19 {controlling c5} (2... Qe1 $2 3. Nc3+ Ka1 (3... Kc1 $2 4. Rxd3) 4. Rxc2) (2... dxe4 $2 3. Rxd3 exd3 4. Qc3) 3. Nc3+ Kc1 4. Rxd3 Qc5+ 5. Ka4 Qa7+ 6. Kb3 b1=Q+) 2... dxe4 3. Ka3 $3 ({ Thematic try:} 3. Kb3 $2 exd3 4. Qh8 {waiting move} (4. Qa6 Qe3 $19) (4. Qc3 { EV} d2 5. Qa5 Qh1 $1 {see main}) 4... d2 5. Qa8 Qh1 $3 {nice move which guards e4} ({EV} 5... Qg1 6. Qa2+ Kc1 7. Qxb2+ Kd1 8. Qxc2+ $11) 6. Qa2+ (6. Qxh1+ d1=Q 7. Qe4 Qe2 {for example} 8. Qxe2 c1=N+ $19) 6... Kc1 7. Qxb2+ Kd1 8. Qxc2+ Ke1 $1 (8... Ke2 $2 9. Qc4+ $11) 9. Qc3 Qd5+ (9... Qb7+) 10. Kb4 Ke2 11. Qc2 Qd4+ 12. Ka5 Ke1 $19) 3... exd3 4. Qc3 $1 Ka1 (4... Qh1 $2 5. Qxb2#) (4... d2 $2 5. Qb3 d1=Q (5... Qh1 6. Qxb2#) 6. Qa2#) 5. Kb3 $1 Kb1 (5... d2 $2 6. Qa5+ Kb1 7. Qa2#) (5... Qh1 $2 6. Qxb2#) 6. Ka3 $1 $10 {By repetition} 1/2-1/2 [Event "6th comm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Gasparyan=A"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "4r3/8/p3P3/P2p4/1N3p2/1K2p1pB/3P2Rp/2Bkr2N b - - 0 1"] [PlyCount "22"] [EventDate "2021.??.??"] {The work-out of the final position is very difficult. The author managed to move three thematic pawns, but the impression is still a bit awkward, and a pair of pawns on the a-file had to be additionally added for soundness. The idea of the final position is known from ?Manvelyan (=3151.16c2g1), 2nd Pr. Rudenko JT 1998, however with only 3 free squares for the black King.} 1... e2 2. Bg4 Rxe6 3. Bxe6 f3 4. Bxd5 (4. Rxg3 $2 Rxh1 5. Nd3 Rg1 6. Rxf3 h1=Q 7. Bxd5 Qh5 $1 8. Bc6 Qxa5) 4... fxg2 5. Nf2+ gxf2 (5... Kxc1 6. Kc3 $1 h1=Q 7. Nfd3+ Kb1 8. Ba2+ Ka1 9. Nc2+ Kxa2 10. Ndb4+ Kb1 11. Na3+ {perpetual}) 6. Kb2 Rh1 7. Bb3+ Ke1 8. Bc4 $1 Kf1 (8... g1=Q 9. Nc2+ Kf1 10. Ne3+ Ke1 11. Nc2+ Kd1 12. Ne3+) (8... f1=Q $2 9. Nd3+ Kd1 10. Bb3#) 9. Nd5 Kg1 10. Nf4 Kf1 11. Nd5 Ke1 12. Nb4 {draw by repetition} 1/2-1/2 [Event "?"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "**** Special Prizes"] [Black "?"] [Result "*"] [PlyCount "0"] [EventDate "2021.??.??"] * [Event "spec pr PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Pasman=M"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/8/P6P/1k3p2/4br2/8/4K1P1/8 w - - 0 1"] [PlyCount "23"] [EventDate "2021.??.??"] {The final sacrifice and zugzwang are known from several classic studies. The first was probably Réti 1928 and only then Grigoriev 1929. Pasman's compact study-from-a-game adds rich content and elevates the final idea considerably.} 1. g3 $1 (1. h7 Rh4) 1... Bd3+ $1 {In connection with the next move, Black cuts off White king from the kingside.} 2. Kxd3 (2. Kd2 Rf2+ 3. Kxd3 Kxa6) 2... Re4 (2... Rc4 3. a7 Rc8 4. Ke3 Kb6 5. Kf4) 3. g4 $3 {Nice move} (3. a7 Re8 4. Kd4 Kb6 5. a8=Q Rxa8 6. Ke5 Rh8 7. Kxf5 Rxh6 {White would miss one tempo to save the day.}) 3... Kxa6 (3... Rxg4 $4 4. h7 Rh4 5. a7) 4. h7 $1 (4. gxf5 Rh4) (4. g5 Rh4 5. Ke3 Kb6 6. h7 Rxh7 7. Kf4 Rf7) 4... Re8 5. gxf5 $1 {Surprising way to hold.} ({Thematic / Logical try :} 5. g5 $2 f4 6. g6 f3 7. g7 f2 8. g8=Q {Same Excelsior without capturing black's f pawn} f1=Q+ $19 {Black is first with checks and wins}) 5... Kb5 6. f6 Kc5 7. f7 Rh8 8. Ke4 Kd6 9. Kf5 Ke7 { The Black play seems to be successful, after 10.Kg6? Kf8 White is in a zugzwang. But...} 10. f8=Q+ $1 {The second Excelsior started with a pawn’s single-step advance (Festina Lente) secures draw.} (10. Kg6 $2 Kf8 $19) 10... Kxf8 11. Kg6 Ke7 12. Kg7 $11 1/2-1/2 [Event "?"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "***** Special Hon. Mentions"] [Black "?"] [Result "*"] [PlyCount "0"] [EventDate "2021.??.??"] * [Event "1st spec hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Osintcev=S"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "4R3/R6n/8/7B/8/5pk1/5p2/2K5 w - - 0 1"] [PlyCount "15"] [EventDate "2021.??.??"] {Excellent treatment of a well-known theme.} 1. Rg7+ $1 (1. Rg8+ $2 Kh4 $11 2. Rg4+ (2. Ra4+ Kxh5) 2... Kxh5 {and the knight is not under attack as in the solution.} 3. Rxh7+ Kxg4 4. Rh1 Kg3 5. Kd2 Kg2) 1... Ng5 $1 (1... Kh2 2. Re2 $1 fxe2 3. Bxe2 $18) (1... Kh3 2. Bg4+ $18) (1... Kh4 2. Re4+ Kxh5 (2... Kh3 3. Bg4+) 3. Rxh7+ Kg6 4. Rh1 $18) 2. Kd2 $1 (2. Rxg5+ $2 {Surprisingly the natural move does not work} Kh4 $1 3. Kd2 $5 Kxg5 $1 $11 (3... f1=Q $2 4. Rg4+) ) 2... f1=Q (2... Kh4 3. Bxf3 f1=Q 4. Rh8+ Kg3 5. Rxg5+ {the constellation RRBxQ is a technical win.}) 3. Rxg5+ Kh4 {Another RRBxQ wins arise in lines like...} (3... Kf4 4. Rg4+ Kf5 5. Rf8+ Ke5 6. Rg5+ $18 Kd6 7. Rxf3) (3... Kh2 4. Bxf3 Qxf3 5. Rh8+ $18) 4. Rg4+ $3 {The reason of text move is to throw off the bishop and open up the h-file.} (4. Ree5 $6 Qa1 $1 5. Rgf5 Qd4+ $1 6. Ke1 Qg1+ $1 7. Kd2 Qd4+ 8. Kc2 Qc4+ $1 9. Kb2 Qb4+ $1 10. Ka2 Qa4+ $1 $11) (4. Rf5 $6 Qg2+ $1 5. Ke3 (5. Kc3 f2 6. Ref8 (6. Be2 Qc6+) 6... f1=Q 7. Rxf1 Qc6+) 5... Qg1+ $1 6. Kxf3 Qg4+ $1 7. Bxg4 $11) (4. Rgg8 $6 {with similar motive as in the solution, but Black does not capture the bishop} Qf2+ $1 5. Kd3 Qf1+ $1 ( 5... Kxh5 $2 6. Rg1 $3 Qb2 (6... Qxg1 7. Rh8+) 7. Rh8+ $1 Qxh8 8. Rh1+ $18) 6. Kd2 Qf2+ $11) 4... Kxh5 (4... Kh3 5. Rgg8 ({or} 5. Re1) ({or} 5. Re3) 5... Qg2+ $1 6. Ke3 $1 (6. Rxg2 $2 fxg2 7. Rg8 Kh2 $11) 6... Qe2+ 7. Kf4 Qd2+ 8. Kxf3 $18 ) 5. Rg1 $3 {with two echo skewers} Qf2+ ({main} 5... Qxg1 6. Rh8+ Kg4 7. Rg8+ $18) 6. Kd3 Qb2 7. Rh8+ $1 Qxh8 8. Rh1+ $18 1-0 [Event "2nd spec hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Tarasiuk=V Stavrietsky=A"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/1pk5/P1p3B1/1PPp4/1q1Ppp2/p3P2r/1P5B/6RK w - - 0 1"] [PlyCount "55"] [EventDate "2021.??.??"] {An entertaining introduction to an entertaining endgame!} 1. b6+ Kb8 (1... Kd7 2. Bf5+ Ke7 3. Bxh3) 2. a7+ Ka8 3. Bh5 $1 ({Thematic try:} 3. Bh7 $2 Rg3 $1 4. Bxg3 fxg3 5. Rf1 g2+ $1 6. Kxg2 Qd2+ 7. Kh1 Qc1 $1 8. Rxc1 axb2 9. Rg1 b1=Q { compare to main line} 10. Bxe4 Qxe4+ $11 {check} (10... Qxg1+ $2 11. Kxg1 dxe4 12. d5 $1 $18)) (3. Bxe4 Rh8) 3... Rg3 $1 (3... Qe1 4. Rxe1 Rxh5 5. b4 $18) 4. Bxg3 fxg3 5. Rf1 g2+ $1 6. Kxg2 Qd2+ 7. Kh1 $1 (7. Kg3 $2 Qxe3+ 8. Kh4 Qh6 $11) 7... Qc1 $1 8. Rxc1 axb2 9. Rg1 $1 (9. Rf1 $2 b1=Q 10. Bf3 $6 Qxf1+ $19) 9... b1=Q 10. Bf3 $1 (10. Bd1 $2 Qxd1 $1 11. Rxd1 {- stalemate}) 10... Qxg1+ 11. Kxg1 exf3 12. Kf1 $1 {by C.Lippmann & L. Kieseritzky (1843)} f2 13. e4 dxe4 14. Kxf2 e3+ 15. Ke1 $1 e2 16. d5 {Development of the idea of the study C.Lippmann & L. Kieseritzky (1843). Win, for example} cxd5 17. Kxe2 (17. Kf2) (17. Kd2 d4 18. Kxe2 d3+ 19. Kd1 d2 20. c6) 17... d4 18. Kd2 d3 19. c6 bxc6 20. Kxd3 c5 21. Kc4 (21. Kc3 {or} c4 22. Kxc4 Kb7 23. Kc5 Ka8 24. Kd6 Kb7 25. a8=Q+ Kxa8 26. Kc6 Kb8 27. b7) 21... Kb7 22. Kd5 c4 23. Kd6 c3 24. a8=Q+ Kxa8 25. Kc7 c2 26. b7+ Ka7 27. b8=Q+ Ka6 28. Qb6# 1-0 [Event "3rd spec hm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Minski=M Sprenger=J"] [Black "?"] [Result "1/2-1/2"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/5P1b/6kq/8/4NpKB/8/8/3B4 w - - 0 1"] [PlyCount "14"] [EventDate "2021.??.??"] {Maybe an artistic development of the study-from-a-game Minski and Waelzel, Schach 2019. This version is spiced up by the bishop sacrifice in the third move.} 1. Ng5 ({JP} 1. Nd6 Qh5+ {the fastest} 2. Kh3 Qxd1 3. f8=Q Qh1+ 4. Kg4 Qg2+ 5. Kxf4 Qf1+) 1... Kg7 (1... Qh5+ 2. Kh3 $11 {EV} Qh6 3. Bc2+ Kg7 4. Bxh7) 2. Bf2 (2. f8=Q+ $2 Kxf8 3. Nxh7+ Qxh7 $19) (2. Be1 {EV} Qc6 3. Nxh7 Kxf7 4. Ng5+ Kg6) 2... Qd6 (2... Bd3 3. Bc5 Kg6 4. f8=N+ $1 $11 (4. f8=Q $2 Qxg5+ 5. Kf3 Qg3#)) 3. Bc2 $3 {the point} ({logical try:} 3. f8=Q+ $2 Kxf8 4. Bc5 $1 Bf5+ $1 5. Kh4 Qxc5 6. Ne6+ Bxe6 $19 {no stalemate}) (3. Bd4+ $2 Kh6 $1 4. Nxh7 Qd7+ $1 5. Kf3 Qd5+ $1 (5... Qxf7 $2 6. Nf6 $11) 6. Kg4 (6. Kxf4 Qxd4+ $19) 6... Qxf7 $19 7. Nf6 (7. Bc2 Qh5+ 8. Kxf4 Qh2+) 7... Qg6+ 8. Kxf4 Qd3) 3... Bxc2 (3... Qd7+ 4. Kh4 $11 ({try:} 4. Kh5 $2 Bg6+ $1 5. Bxg6 Qd1+ 6. Kh4 Kxg6 7. f8=Q Qh5# {mate with wKh5})) 4. f8=Q+ $1 Kxf8 (4... Qxf8 5. Ne6+ $11) 5. Bc5 $1 Bf5+ $1 6. Kh4 $1 Qxc5 7. Ne6+ Bxe6 {model mirror stalemate} 1/2-1/2 [Event "?"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "***** Special Commendations"] [Black "?"] [Result "*"] [PlyCount "0"] [EventDate "2021.??.??"] * [Event "1st spec comm PV64JT"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Gurgenidze=D"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "B4q2/8/8/3QP3/4p2p/5Pk1/8/5nK1 w - - 0 1"] [PlyCount "9"] [EventDate "2021.??.??"] {Nice reintroduction of the known spectacular combination. Surprisingly we have found only one study (Minski and Nielsen 2017) where the sac is not on the board border. The Gurgenidze study is, however, more significant. We are a bit bothered by the uneconomical e6 pawn.} 1. e6 {1…Qc5+ is here not possible. But Black has another dangerous Q move.} (1. Qxe4 Qc5+ 2. Kh1 Kf2 { the purest way to draw} 3. Qxh4+ Ng3+ 4. Kh2 Qxe5 5. Be4 Qh5 6. Bf5) 1... Qxf3 (1... Qg7 2. Kxf1 Kh2 3. Qa2+ Kh1 4. Qf2 h3 5. Bxe4 Qg2+ 6. Ke2) 2. Qe5+ $1 { Driving the king away because of mate threat} (2. Qg5+ Kh3 3. e7 $2 Ng3 $19) ( 2. Qxe4 $2 Qf2+ 3. Kh1 Qh2#) 2... Kh3 3. Qxe4 (3. Bxe4 Qe3+ 4. Kxf1 Qf4+ 5. Qxf4 {stalemate}) 3... Ng3 4. Qg4+ $1 (4. Qxf3 {Black has another stalemate in mind, but...}) 4... Qxg4 (4... Kxg4 5. Bxf3+ Kxf3 6. e7) 5. Bg2# 1-0 [Event "2nd spec comm PV64"] [Site "pv64m"] [Date "2021.05.??"] [Round "?"] [White "Nosek=S"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/6pp/4K1RP/7k/R4P1p/7P/5q2/8 w - - 0 1"] [PlyCount "15"] [EventDate "2021.??.??"] 1. Kf7 (1. hxg7 Qb6+) 1... Qd2 (1... hxg6 2. h7) 2. Ra5+ Qxa5 3. Rg5+ Qxg5 4. fxg5 gxh6 (4... g6 5. Kg7) 5. g6 $1 hxg6 6. Kf6 g5 7. Kf5 g4 8. hxg4# {A nice arrangement the well-known mating finale, suitable for a solving contests.} 1-0 [Event "?"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "***** Historic corner"] [Black "?"] [Result "*"] [PlyCount "0"] [EventDate "2021.??.??"] * [Event "Le Palamede#062"] [Site "?"] [Date "1843.02.15"] [Round "?"] [White "Lippmann=C Kieseritzky=L"] [Black "?"] [Result "1-0"] [SetUp "1"] [FEN "k7/Pp6/1Pp5/2Pp4/3Pp3/4P3/5P2/6K1 w - - 0 1"] [PlyCount "31"] [EventDate "1843.02.15"] 1. f3 ({or} 1. f4 $1) 1... exf3 2. Kf1 $1 f2 3. e4 dxe4 4. Kxf2 e3+ 5. Ke1 e2 6. d5 cxd5 7. Kxe2 (7. Kd2 e1=Q+ 8. Kxe1 d4 9. Kd1 d3 10. c6 bxc6 11. Kd2 c5 12. Kxd3) 7... d4 8. Kd2 (8. c6 $1 {} bxc6 9. Kd3 c5 10. Kc4 Kb7 11. Kxc5 $1 ({JP nebo i} 11. Kd5 d3 12. Kd6 d2 13. a8=Q+ Kxa8 14. Kc7 d1=Q 15. b7+ Ka7 16. b8=Q+ Ka6 17. Qb6#) 11... d3 12. Kd6 $1 d2 13. a8=Q+ Kxa8 14. Kc7 d1=Q 15. b7+ Ka7 16. b8=Q+ Ka6 17. Qb6#) 8... d3 9. c6 bxc6 10. Kxd3 c5 (10... Kb7 11. Kc4 Ka8 12. Kc5 Kb7 13. Kd6 c5 14. a8=Q+ Kxa8 15. Kc7) 11. Kc4 (11. Kc3 Kb7 12. Kc4 Ka8 13. Kxc5 Kb7 14. a8=Q+ Kxa8 15. Kc6 Kb8 16. b7) 11... Kb7 12. Kd5 $1 c4 13. Kd6 (13. Kxc4 $1 {}) 13... c3 14. a8=Q+ Kxa8 15. Kc7 c2 16. b7+ 1-0 [Event "Schach#19064"] [Site "?"] [Date "2019.??.??"] [Round "?"] [White "Minski=M Waelzel=H"] [Black "?"] [Result "1/2-1/2"] [SetUp "1"] [FEN "2N5/8/P4k2/3Kp3/7p/4b3/8/8 w - - 0 1"] [PlyCount "14"] [EventDate "2019.??.??"] {Schach/9 after game Alavkin=A - Sapunov=E Samara 2000.} 1. Ke4 (1. Nd6 $2 h3 $1 2. Ne4+ Kf5 $1) 1... h3 $1 2. Kf3 (2. Kxe3 $2 h2 3. a7 h1=Q) 2... Bc5 $1 ( 2... e4+ 3. Kxe3 $1 (3. Kg3 $2 Bc5 $1) 3... h2 4. a7 h1=Q 5. a8=Q) 3. Nd6 $1 ( 3. Kg3 $2 e4 $1 4. Kxh3 e3 5. Nd6 (5. Kg3 e2) 5... e2 $1) 3... Bxd6 4. a7 e4+ $1 5. Kg4 $1 (5. Kxe4 $2 h2 6. a8=Q h1=Q+ 7. Kd4 Qxa8) (5. Kf2 $2 Bc5+ 6. Kg3 Bxa7) (5. Ke2 $2 h2 6. a8=Q h1=Q 7. Qd8+ Be7) 5... h2 6. a8=Q h1=Q 7. Qh8+ $1 ( 7. Qd8+ $2 Be7) 7... Qxh8 1/2-1/2 [Event "1.hm 6th UAPA internet ty#09"] [Site "?"] [Date "2017.12.23"] [Round "2"] [White "Minski=M Slumstrup Nielsen=S"] [Black "?"] [Result "1-0"] [SetUp "1"] [FEN "5b2/2K5/1p4P1/2p1P2B/1Bkp2P1/p7/7q/Q7 w - - 0 1"] [PlyCount "15"] [EventDate "2017.12.23"] 1. Qe1 $1 (1. Bxa3 $2 Qxe5+) 1... a2 (1... cxb4 2. g7 {odlákání strelce od krytí pole d6} Bxg7 3. Qc1+ Kb5 (3... Kd5 4. Qc6+ Kxe5 5. Qd6+) 4. Qc6+ Ka5 5. Be8 Qxe5+ 6. Kb7) 2. g7 $1 {uvolnuje dráhu strelci h5} (2. Kxb6 $2 Bg7 $1) 2... Bxg7 3. Kxb6 (3. Bf7+ {}) 3... Qf4 (3... Qxe5 4. Bf7+ Kd3 5. Qd2+ Ke4 6. Qg2+ Kd3 7. Qf3+ Qe3 8. Qf1+ Kc2 9. Bxc5) (3... Qb2 4. Bf7+ Kd3 5. Qg3+) ({ JP} 3... cxb4 4. Bf7+ Kd3 5. Bg6+ Kc4 6. Qc1+ Kb3 7. Bf7+ Ka4 8. Qd1+) 4. Ba3 $1 (4. Bxc5 $2 Qh6+ 5. Kb7 (5. Bd6 Bxe5 6. Qxe5 a1=Q) 5... Kxc5 6. Qa5+ Kc4 7. e6 Bf8 8. Qxa2+ Kd3 9. Qb1+ Kd2 10. Qb2+ Ke1 11. Qxd4 Qxe6) 4... Kd5 (4... Qh6+ 5. Ka5) (4... d3 5. Qa1 $1) 5. Bxc5 Bxe5 (5... Qh6+ 6. Bd6) 6. Be8 $1 d3 { Start line that ends at move 8(btm) CQL} (6... Ke6 7. Qe2 $1 (7. Qa1 {JP také vyhrává a trochu to kazí} Qxg4 8. Qxa2+ Kf6 9. Qf7+) 7... a1=Q 8. Qc4+ Kf6 9. Qf7+ Kg5 10. Qh5+ Kf6 11. Qg6#) 7. Qe4+ $1 (7. Qh1+ $2 Kc4) (7. Bc6+ $2 Ke6) 7... Kxe4 (7... Qxe4 {

} 8. Bf7#) 8. Bc6# {End line of length 4 that starts at move 7(wtm)} 1-0 [Event "2.hm Bogatyrchuk-120 MT Problemist Ukra"] [Site "?"] [Date "2013.??.??"] [Round "?"] [White "Aberman=V Agapov=I"] [Black "?"] [Result "1-0"] [SetUp "1"] [FEN "1r1n1Rb1/1k6/6p1/KB6/8/7p/8/R7 w - - 0 1"] [PlyCount "19"] [EventDate "2013.??.??"] {Problemist Ukraini/3 EG#19362.} 1. Rd1 Bd5 $1 (1... Ra8+ 2. Kb4 Kb6 3. Rf6+ Be6 4. Bd7) (1... Ne6 2. Rd7+ Nc7 3. Rxb8+ Kxb8 4. Rd8+) (1... Be6 2. Rdxd8 Rxd8 3. Rxd8 Kc7 4. Rh8 g5 (4... Kd6 5. Bf1 g5 6. Bxh3) 5. Rh6 Bc8 6. Bf1) 2. Rxd5 Nc6+ 3. Bxc6+ Kxc6 {Pro rešitelskou soutež zacít asi až zde [#]} 4. Rfd8 $1 (4. Rdd8 $2 h2 5. Rf6+ Kc5 6. Rd1 Ra8+) (4. Rxb8 $2 Kxd5 5. Rh8 g5 6. Rxh3 Ke4 7. Kb4 g4 8. Ra3 Kf4 9. Kc3 g3 10. Kd2 g2 11. Ra1 Kf3) 4... h2 (4... Rxd8 5. Rxd8 g5 6. Rg8 h2 7. Rg6+ $1) 5. R5d6+ Kc5 6. Rxb8 (6. Rd5+ $2 Kc4 7. Rd4+ Kc5 (7... Kc3 $2 8. Rd3+ Kc4 9. R8d4+ Kc5 10. Rd5+ Kc6 11. Rd6+ Kc7 12. Rd7+ Kc6 13. Rh7) 8. R8d5+ Kc6 9. Rd6+ Kc7 $1 10. Rd7+ Kc6 11. Rh7 Kc5 12. Rdd7 Ra8+) 6... h1=Q (6... Kxd6 7. Rh8 g5 8. Rxh2 Ke5 9. Kb4 g4 10. Kc3) 7. Rd1 $1 Qh3 (7... Qxd1 {

} 8. Rc8+ Kd4 9. Rd8+ Ke3 10. Rxd1 g5 11. Rg1 $1) 8. Rc8+ $1 Qxc8 9. Rc1+ Kd4 10. Rxc8 1-0 [Event "original"] [Site "?"] [Date "2021.05.??"] [Round "?"] [White "Egorov=E"] [Black "?"] [Result "1-0"] [Annotator "Polasek+Vlasak"] [SetUp "1"] [FEN "8/1r4P1/1P3kn1/P2K4/8/8/8/8 w - - 0 1"] [PlyCount "31"] [EventDate "2021.??.??"] {An interesting fight of two pawns against superiority to the last shot.} 1. g8=Q (1. Kc6 Rxg7 $11) 1... Ne7+ 2. Kc5 $1 (2. Kd6 $2 Nxg8 $11) 2... Nxg8 3. a6 Rb8 4. b7 $1 (4. a7 $2 Rc8+ 5. Kd6 Ra8 $11) 4... Ne7 5. Kd6 (5. a7 Rxb7 6. a8=Q Rd7 $11) 5... Re8 (5... Rh8 6. Kd7 Nd5 7. a7 Rh7+ 8. Kc6 Nb4+ 9. Kb6 Nd5+ 10. Kc5 Rxb7 {See main option}) (5... Rd8+ 6. Kc7) 6. Kd7 $1 (6. Kc7 $2 Nd5+ 7. Kc6 Nb4+ $11) (6. a7 Nc8+ $1) 6... Nd5 $1 7. a7 $1 (7. Kxe8 $2 Nc7+ $11) 7... Re7+ 8. Kc6 (8. Kd6 $2 Rxb7 9. a8=Q Rd7+ $1 $11 10. Kxd7 Nb6+) 8... Nb4+ 9. Kb6 (9. Kc5 $2 Rxb7 (9... Rc7+ 10. Kd6 Rxb7 11. a8=Q Rb6+ $1 12. Kc5 Rb8 $1 13. Qxb8 Na6+) 10. a8=Q Rb8 $1 $11 11. Qxb8 Na6+) 9... Nd5+ 10. Kc5 (10. Ka6 Nb4+ 11. Kb6 Nd5+ {see main}) (10. Kc6 Nb4+ 11. Kb6 (11. Kd6 $2 Rxb7 12. a8=Q Rb6+ 13. Kc5 Rb8 $1 $11) 11... Nd5+ {see main}) 10... Rxb7 11. a8=Q Rd7 12. Qe8 $1 (12. Qc6+ $2 Ke7 $11) 12... Re7 13. Qh8+ Ke6 14. Qh3+ $1 {wins, for example} ({ The last chance of making a mistake was} 14. Qg8+ Rf7 15. Qc8+ (15. Qg4+ Rf5 $11) 15... Rd7 $11) 14... Ke5 15. Qh5+ Kf4 16. Kxd5 1-0 [Event "1.p Belokon MT Problemist Ukraini"] [Site "?"] [Date "2015.??.??"] [Round "?"] [White "Didukh=S"] [Black "?"] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/8/5K2/p1P5/1p2kp2/1RR3p1/2N4r w - - 0 1"] [PlyCount "31"] [EventDate "2015.??.??"] {Problemist Ukraini=1(43) Problemist Ukraini/1-3 (EG#20373).} 1. Rc3+ Kd4 2. Rxf3 Rf1 $1 (2... g1=Q 3. Ne2+ Kxc4 4. Nxg1) 3. Rf4+ $1 (3. Rbxb3 $2 Kc5 $1 4. Nd3+ Kc6 5. Ne5+ Kc7 6. Ra3 g1=Q 7. Rxa4 (7. Rxf1 Qxf1+ 8. Ke6 Qd1) 7... Rxf3+ 8. Nxf3 Qd1 9. Ra3 Qd7+ 10. Kf4 Qd6+) (3. Ne2+ $2 Kxc4) (3. Rbf2 $2 Rxf2 4. Rxf2 g1=Q 5. Ne2+ Ke3 6. Nxg1 Kxf2) (3. Kf4 $2 Rxf3+ 4. Kxf3 g1=Q 5. Ne2+ Kxc4 6. Nxg1 a3 7. Rb1 b2 8. Ne2 Kd3 9. Rh1 Kd2 10. Nd4 a2 11. Rh2+ Kc3 12. Nb5+ Kb3 $1 13. Nd4+ Kc4 14. Rxb2 a1=Q 15. Rd2 Qe1 $1 16. Re2 Qh1+ 17. Ke3 Qh6+) 3... Rxf4+ 4. Kxf4 g1=Q 5. Ne2+ Kxc4 6. Nxg1 a3 7. Rb1 b2 (7... a2 8. Ra1 b2 9. Rxa2 b1=Q 10. Rg2) 8. Ne2 Kd3 $1 9. Re1 Kd2 (9... a2 10. Nc1+ $1) 10. Nd4 $1 a2 ( 10... Kxe1 11. Nc2+ Kd2 12. Nxa3) 11. Re2+ Kc3 (11... Kd3 12. Rxb2 a1=Q 13. Rd2+ $1 Kxd2 14. Nb3+ Kc3 15. Nxa1) 12. Nb5+ Kb3 $1 (12... Kd3 13. Rxb2 a1=Q 14. Rb3+ Kc4 15. Rb1 $1 Qxb1 16. Na3+ Kb3 17. Nxb1) 13. Nd4+ Kc4 14. Rxb2 a1=Q 15. Rd2 (15. Rb4+ $2 Kc3 $1 (15... Kxb4 $2 16. Nc2+ Kc3 17. Nxa1)) 15... Qe1 16. Nf3 $1 1/2-1/2 [Event "Kolnische Volkszeitung"] [Site "?"] [Date "1928.??.??"] [Round "?"] [White "Reti=R"] [Black "?"] [Result "1-0"] [SetUp "1"] [FEN "8/8/8/5k2/8/8/2p1p1p1/2R3K1 w - - 0 1"] [PlyCount "11"] [EventDate "1928.12.16"] {Kolnische Volkszeitung/1.} 1. Kf2 $1 (1. Kxg2 $2 Ke4 2. Kf2 e1=Q+ $1 (2... Kd3 $2 3. Ke1) 3. Kxe1 (3. Rxe1+ Kd3) 3... Kd3 4. Ra1 Kc3 5. Rc1 Kd3 $1) 1... Ke4 ( 1... Kf4 2. Kxe2 Kg3 3. Ke3 Kh2 4. Kf2) 2. Kxe2 Kd4 3. Rg1 (3. Ra1 {}) (3. Re1 $2 Ke4 $1) 3... Ke4 (3... Kc3 4. Re1 Kb2 5. Kd2 Kb3 6. Rc1) 4. Re1 $1 Ke5 ( 4... Kd4 5. Kd2) (4... Kf4 5. Kf2) 5. Ke3 $1 (5. Kd2+ $2 Kf4) (5. Kf2+ $2 Kd4) 5... Ke6 {} 6. Ke4 1-0 [Event "64#355"] [Site "?"] [Date "1929.03.05"] [Round "1"] [White "Grigoriev=N"] [Black "?"] [Result "1/2-1/2"] [Annotator "vlasak"] [SetUp "1"] [FEN "r7/P1P5/8/8/8/7k/8/6K1 w - - 0 1"] [PlyCount "11"] [EventDate "1929.03.05"] {64=5 . Game number 79418} 1. Kf2 Kg4 (1... Re8 {

} 2. Kf3 Kh4 3. Kf4 Kh5 4. Kf5 Kh6 5. Kf6 Kh7 6. Kf7 Ra8 $1 7. Ke7 Kg7 8. Kd7 Kf7 9. Kc6) 2. Ke3 Kf5 3. Kd4 Ke6 4. Kc5 Kd7 {CQL} 5. c8=Q+ $1 Kxc8 6. Kb6 1/2-1/2 [Event "3.hm Shakhmaty (Riga)#54"] [Site "?"] [Date "1979.??.??"] [Round "?"] [White "Khortov=V Mitrofanov=L"] [Black "?"] [Result "1-0"] [Annotator "evcom"] [SetUp "1"] [FEN "1n6/3P4/4P3/3K4/6r1/1kp5/8/5B2 w - - 0 1"] [PlyCount "17"] [EventDate "1979.??.??"] {Shakhmaty (Riga)=20 Shakhmaty (Riga)/10 (EG#05185).} 1. d8=Q Rd4+ 2. Kxd4 Nc6+ 3. Kd5 Nxd8 4. Bc4+ Kb4 5. e7 Ne6 6. Kxe6 c2 7. e8=Q Kxc4 (7... c1=Q {

} 8. Qb5+ Kc3 9. Qb3+ Kd4 10. Qd3+ Kc5 11. Qd6+ Kxc4 12. Qc6+ Kd3 13. Qxc1) 8. Qh8 $1 Kb3 9. Qa1 {A kde jsou tiche tahy Sf4 a Dg5?} 1-0 [Event "2.p Rudenko JT Sportivnaya Gazeta"] [Site "?"] [Date "1998.06.27"] [Round "?"] [White "Manvelyan=A"] [Black "?"] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/2b5/1p6/Rp6/8/3Np3/2KpP1pp/2BB2kq w - - 0 1"] [PlyCount "23"] [EventDate "1998.06.27"] {(EG#14562).} 1. Ra8 $1 (1. Rxb5 $2 Bg3 2. Rf5 Bf2 $1 3. Rxf2 (3. Ne5 Kf1 $1 4. Nc4 Ke1 $1 5. Nxe3 dxc1=Q+ 6. Kxc1 Bxe3+) 3... dxc1=Q+ 4. Kxc1 exf2 5. Nf4 $1 Kf1 $1 6. Nd5 $1 Ke1 7. Nb4 $1 b5 $1 8. Nc2+ (8. Kc2 g1=Q $1) (8. e4 f1=Q) 8... Kf1 9. Ne3+ Kg1) 1... Bd6 (1... Bg3 2. Rf8 $1) 2. Ra7 $1 Bg3 (2... Bf4 3. Rf7 Bg3 4. Bxd2 Bf2 5. Bxe3) 3. Rf7 $1 (3. Bxd2 $2 Kf1 4. Rf7+ Bf2 5. Bxe3 g1=Q) 3... Bf2 $1 (3... dxc1=Q+ 4. Kxc1 Bf2 5. Nb4 $1 Kf1 6. Nc2 $1 g1=Q 7. Nxe3+ Ke1 8. Nc2+) 4. Rxf2 $1 (4. Nxf2 $2 dxc1=Q+ $1 5. Kxc1 exf2) (4. Nb4 $2 Kf1 $1 5. Nd5 Ke1 $1 6. Nxe3 dxc1=Q+ $1 7. Kxc1 Bxe3+) (4. Ne5 $2 Kf1 5. Ng4 dxc1=Q+ $1 6. Kxc1 Ke1 $1) (4. Bxd2 $2 Kf1 $1 5. Bxe3 g1=Q) 4... exf2 (4... dxc1=Q+ 5. Kxc1 exf2 6. Nf4) 5. Nf4 $1 (5. Bxd2 $2 f1=Q 6. Be3+ Qf2) 5... Kf1 (5... f1=Q 6. Nh3#) (5... b4 6. Kxd2 Kf1 7. Nd5 $1 Kg1 8. Nf4 $1) 6. Nd5 $1 Kg1 (6... g1=Q 7. Ne3+ Ke1 8. Bxd2#) (6... dxc1=Q+ 7. Kxc1 g1=Q 8. Ne3+ Ke1 9. Nc2+) (6... b4 7. Kxd2 Kg1 8. Nf4) 7. Nf4 $1 dxc1=Q+ 8. Kxc1 Kf1 $1 9. Nd5 $1 Ke1 10. Nb4 $1 Kf1 (10... f1=Q 11. Nd3#) (10... g1=Q 11. Nc2+ $1 Kf1 12. Ne3+) 11. Nd5 $1 Kg1 (11... g1=Q 12. Ne3+) 12. Nf4 $1 1/2-1/2