[Event "?"]
[Site "?"]
[Date "1995.??.??"]
[Round "?"]
[White "Matt in 2"]
[Black "Mate in 2"]
[Result "1-0"]
[SetUp "1"]
[FEN "6k1/p4p2/1q1p1PrR/4nQp1/2P1P3/P7/1r4PP/1B3R1K w - - 0 38"]
[PlyCount "3"]
[SourceTitle "Pocket Fritz 3"]
[Source "ChessBase"]
[SourceDate "2008.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.01"]
[SourceQuality "1"]
{[%tqu "En","Find the mate in 2","Check all queen moves","The mating square is
d8","f5c8","This is mate in 2",6,"f5h3","Ok, but there is a quicker mate",2,
"De","Finde ein Matt in 2","Pr?en Sie alle Damenz?e","Das Mattfeld ist d8",
"f5c8","Das ist Matt in 2",6,"f5h3","Gut, doch es gibt ein schnelleres Matt",2]
} 38. Qc8+ Qd8 {[%tqu "En","How to continue?","","","c8d8","Right",2,"De","Wie
geht es weiter?","","","c8d8","Richtig",2]} 39. Qxd8# 1-0
[Event "?"]
[Site "?"]
[Date "1995.??.??"]
[Round "?"]
[White "Matt in 2"]
[Black "Mate in 2"]
[Result "1-0"]
[SetUp "1"]
[FEN "2r3k1/5pp1/3Qb1P1/7p/pp2Pp1P/1Pq2P2/P1PRB3/1K6 w - - 0 34"]
[PlyCount "3"]
[SourceTitle "Pocket Fritz 3"]
[Source "ChessBase"]
[SourceDate "2008.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.01"]
[SourceQuality "1"]
{[%tqu "En","Find the mate in 2","Check all queen moves","The mating square is
d8","d6d8","This is mate in 2",6,"e2c4","Not a forced mate",0,"De","Finde ein
Matt in 2","Pr?en Sie alle Damenz?e","Das Mattfeld ist d8","d6d8","Das ist
Matt in 2",6,"e2c4","Setzt nicht forciert Matt",0]} 34. Qd8+ Rxd8 {[%tqu "En",
"How to continue?","","","d2d8","Right",2,"De","Wie geht es weiter?","","",
"d2d8","Richtig",2]} 35. Rxd8# 1-0
[Event "?"]
[Site "?"]
[Date "1994.??.??"]
[Round "?"]
[White "Matt in 2"]
[Black "Mate in 2"]
[Result "0-1"]
[Annotator "3700"]
[SetUp "1"]
[FEN "1k1br2r/p5p1/PpnP4/2p2p2/3p1P2/1QPP1B1p/1P5P/R1B3K1 b - - 0 26"]
[PlyCount "3"]
[SourceTitle "Pocket Fritz 3"]
[Source "ChessBase"]
[SourceDate "2008.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.01"]
[SourceQuality "1"]
{[%tqu "En","Find the mate in 2","Check all rook moves","The mating square is
h4","e8e1","This is mate in 2",6,"d4c3","Not a forced mate",0,"De","Finde ein
Matt in 2","Pr?en Sie alle Turmz?e","Das Mattfeld ist h4","e8e1","Das ist
Matt in 2",6,"d4c3","Setzt nicht forciert Matt",0]} 26... Re1+ 27. Kf2 {
[%tqu "En","How to continue?","","","d8h4","Right",2,"De","Wie geht es
weiter?","","","d8h4","Richtig",2]} Bh4# {[%csl Re1,Re2,Re3,Rf1,Rg1,Rg2,Rg3]
[%CAl Gb3c3]} 0-1
[Event "?"]
[Site "?"]
[Date "1995.??.??"]
[Round "?"]
[White "Matt in 2"]
[Black "Mate in 2"]
[Result "0-1"]
[Annotator "3700"]
[SetUp "1"]
[FEN "8/3N2p1/p3np2/5K1k/4P3/2r5/8/5R2 b - - 0 59"]
[PlyCount "3"]
[SourceTitle "Pocket Fritz 3"]
[Source "ChessBase"]
[SourceDate "2008.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.01"]
[SourceQuality "1"]
{[%tqu "En","Find the mate in 2","Check all knight moves","The mating square
is g5","e6d4","This is mate in 2",6,"e6g5","Not a forced mate",0,"De","Finde
ein Matt in 2","Pr?en Sie alle Springerz?e","Das Mattfeld ist g5","e6d4",
"Das ist Matt in 2",6,"e6g5","Setzt nicht forciert Matt",0]} 59... Nd4+ {
[%csl Re5,Re6,Gf4,Rf6,Rg4,Rg5,Rg6]} 60. Kf4 {[%tqu "En","How to continue?","",
"","g7g5","Right",2,"De","Wie geht es weiter?","","","g7g5","Richtig",2]} g5#
0-1
[Event "?"]
[Site "?"]
[Date "1995.??.??"]
[Round "?"]
[White "Matt in 2"]
[Black "Mate in 2"]
[Result "0-1"]
[Annotator "3700"]
[SetUp "1"]
[FEN "8/5pk1/p7/1pb1R1n1/8/5rPq/PP2RP1P/5QK1 b - - 0 37"]
[PlyCount "3"]
[SourceTitle "Pocket Fritz 3"]
[Source "ChessBase"]
[SourceDate "2008.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2008.05.01"]
[SourceQuality "1"]
{[%tqu "En","Find the mate in 2","Check all rook moves","The mating square is
f3","f3g3","This is mate in 2",6,"h3f1","Not a forced mate",0,"De","Finde ein
Matt in 2","Pr?en Sie alle Turmz?e","Das Mattfeld ist f3","f3g3","Das ist
Matt in 2",6,"h3f1","Setzt nicht forciert Matt",0]} 37... Rxg3+ 38. hxg3 (38.
Kh1 Qxf1#) {[%tqu "En","How to continue?","","","g5f3","Right",2,"De","Wie
geht es weiter?","","","g5f3","Richtig",2]} 38... Nf3# {[%csl Rg2,Rh1,Rh2]} 0-1
[Event "USSR"]
[Site "?"]
[Date "1968.??.??"]
[Round "?"]
[White "Semashov"]
[Black "Zhuravlev"]
[Result "0-1"]
[Annotator "3700"]
[SetUp "1"]
[FEN "6k1/2N1b1pp/p3P3/6P1/1r2n3/5r2/1PP4P/2KR1B1R b - - 0 1"]
[PlyCount "5"]
[SourceTitle "Itensive Course 2"]
[Source "ChessBase"]
[SourceDate "2004.08.20"]
[SourceVersion "1"]
[SourceVersionDate "2004.08.20"]
[SourceQuality "1"]
{[%tqu "En","","","","e7g5","",1]} 1... Bxg5+ 2. Kb1 (2. Rd2 Bxd2+ 3. Kd1 Rxb2
$19) {[%tqu "En","","","","e4c3","",1]} 2... Nc3+ {[%CAl Rc3d1,Rc3b1]} 3. Ka1
Ra4# 0-1
[Event "?"]
[Site "?"]
[Date "1923.??.??"]
[Round "?"]
[White "Euwe"]
[Black "Lohman"]
[Result "1-0"]
[Annotator "3700"]
[SetUp "1"]
[FEN "rn1qr1k1/1p2np2/2p3p1/8/1pPb4/7Q/PB1P1PP1/2KR1B1R w - - 0 1"]
[PlyCount "3"]
[SourceTitle "Itensive Course 2"]
[Source "ChessBase"]
[SourceDate "2004.08.20"]
[SourceVersion "1"]
[SourceVersionDate "2004.08.20"]
[SourceQuality "1"]
{[%csl Rb2,Gd4,Rh1,Rh3][%CAl Gd4h8,Rh3h8,Rh1h8]} {[%tqu "En","","","","h3h8",
"",1]} 1. Qh8+ Bxh8 2. Rxh8# 1-0
[Event "Siegen"]
[Site "?"]
[Date "1970.??.??"]
[Round "?"]
[White "Unzicker"]
[Black "Sarapu"]
[Result "1-0"]
[Annotator "3700"]
[SetUp "1"]
[FEN "r1br3k/pp3Qpp/1q1N4/8/2B2n2/8/PPP3PP/R2K1R2 w - - 0 1"]
[PlyCount "3"]
[SourceTitle "Itensive Course 2"]
[Source "ChessBase"]
[SourceDate "2004.08.20"]
[SourceVersion "1"]
[SourceVersionDate "2004.08.20"]
[SourceQuality "1"]
{[%tqu "En","","","","f7g8","",1]} 1. Qg8+ {[%csl Rg8][%CAl Gd8g8,Rd6f7]} Rxg8
2. Nf7# 1-0
[Event "?"]
[Site "?"]
[Date "1911.??.??"]
[Round "?"]
[White "Salkind"]
[Black "?"]
[Result "*"]
[Annotator "3700"]
[SetUp "1"]
[FEN "8/3P3R/3r4/k1K5/8/8/8/q7 w - - 0 1"]
[PlyCount "3"]
[SourceTitle "Itensive Course 2"]
[Source "ChessBase"]
[SourceDate "2004.08.20"]
[SourceVersion "1"]
[SourceVersionDate "2004.08.20"]
[SourceQuality "1"]
{[%tqu "En","","","","d7d8Q","",1]} 1. d8=Q+ {[%csl Rb4,Rb5,Rb6][%CAl Ga5a4,
Ga5a6,Gd6a6,Rh7a7,Rd8a5]} (1. Kxd6 $4 Qf6+ 2. Kc7 Qc3+) 1... Rxd8 (1... Ka4 2.
Qa8+ Kb3 3. Qxa1 $18) (1... Ka6 2. Qa8# {[%csl Ra5,Ra7,Rb5,Rb6,Rb7]}) (1... Rb6
2. Qxb6+ Ka4 3. Qb4#) 2. Ra7# *
[Event "corr."]
[Site "?"]
[Date "1947.??.??"]
[Round "?"]
[White "Goodwin"]
[Black "Svennerstedt"]
[Result "1-0"]
[Annotator "3700"]
[SetUp "1"]
[FEN "r1q2k2/1pp1rN2/pb3PQ1/2p4p/5P2/1PP5/6PP/5K2 w - - 0 1"]
[PlyCount "7"]
[SourceTitle "Itensive Course 2"]
[Source "ChessBase"]
[SourceDate "2004.08.20"]
[SourceVersion "1"]
[SourceVersionDate "2004.08.20"]
[SourceQuality "1"]
{[%tqu "En","","","","g6g7","",1]} 1. Qg7+ Ke8 {[%tqu "En","","","","f7d6","",
1]} 2. Nd6+ Kd7 (2... cxd6 3. Qxe7#) (2... Kd8 3. Qxe7#) 3. Qxe7+ $18 Kc6 4.
Nxc8 $18 1-0
[Event "Chess.com"]
[Site "Chess.com"]
[Date "2022.11.10"]
[Round "2"]
[White "Tan, Zhongyi"]
[Black "Goryachkina, Aleksandra"]
[Result "1-0"]
[ECO "D52"]
[WhiteElo "2518"]
[BlackElo "2584"]
[Annotator "Rafael"]
[PlyCount "79"]
[EventDate "2022.??.??"]
[SourceVersionDate "2021.09.11"]
[TimeControl "5400+30"]
{[%evp 0,79,19,31,43,-23,33,34,30,22,29,10,17,27,19,3,12,-4,9,8,16,17,41,42,41,
17,17,11,6,6,6,11,15,18,47,27,26,87,106,106,187,200,188,166,166,52,77,130,121,
97,84,62,91,70,116,86,103,93,81,79,81,89,89,45,48,71,87,87,205,213,219,188,188,
194,271,259,644,690,712,681,762,770]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5.
Bg5 Nbd7 6. e3 Qa5 {[%CAl Ra5e1] The Cambridge-Springs Variation is a more
solid choice for Black than the complications of the Botvinnik System with 6...
dxc4. For those interested in classic games with this system, I suggest
studying games 7, 9 and 11 of the match Capablanca vs. Alekhine.} 7. cxd5 (7.
Nd2 {is also a popular choice.}) 7... Nxd5 {[%csl Ra5,Rd5][%CAl Rd5c3,Ra5c3,
Gb2c3]} 8. Rc1 h6 {It's usually difficult to know if the .. .h6 move is useful;
I have doubts about this in several defenses. Many players prefer to take on
c3 right away. Others choose 8...Bb4.} (8... Nxc3 9. bxc3 Ba3 10. Rc2 b6 {
is similar to the game.}) (8... Bb4 {[%csl Ra5,Gb2,Rb4,Gc1,Rd5,Ge1]} 9. a3
Bxc3+ (9... Nxc3 10. axb4 $1 {[%csl Ga5,Gc3][%CAl Rb2c3,Rb4a5] [%c_effect b4;
square;b4;type;GreatFind;persistent;true]}) 10. bxc3 {with a complicated fight
ahead.}) 9. Bh4 Nxc3 10. bxc3 Ba3 11. Rc2 b6 $1 {[%c_effect b6;square;b6;type;
GreatFind;persistent;true] This plan is essential for Black: playing the
bishop to a6 and simplifying the position a bit.} 12. Nd2 $5 {[%c_effect d2;
square;d2;type;Interesting;persistent;true] A relatively rare move, but one
that has been tried in some correspondence games.} (12. Be2 Ba6 13. O-O Bxe2
14. Rxe2 O-O (14... Qxc3 15. Rc2 Qa5 16. Rxc6 O-O 17. e4 Rac8 18. Qc2 Qa6 19.
h3 Nb8 20. Rxc8 Rxc8 21. Qb3 Nd7 22. d5 Nc5 23. Qe3 Qd3 24. dxe6 fxe6 25. Re1
Bb4 26. Qxd3 Nxd3 27. Re2 Rc1+ 28. Kh2 e5 29. Bg3 Bc3 30. Nh4 b5 31. Nf5 b4 32.
Ne7+ Kf7 33. Nc6 Ke6 34. h4 Ra1 35. f4 exf4 36. Bf2 Nc1 37. Rc2 Rxa2 38. Rxc1
Rxf2 39. Nxa7 f3 40. Kg3 Ra2 41. Nb5 fxg2 42. Nxc3 Rc2 {0-1 (42) Cramling,P
(2443)-Goryachkina,A (2575) Monte Carlo 2019}) 15. c4 {leads to a typical
middlegame for this variation. Black is solid, but White has more space.
Ding-Duda, Goldmoney (rapid) 2021}) 12... Ba6 13. c4 {The most natural move.} (
13. Nc4 Qa4) (13. Bc4 O-O 14. O-O c5 {In the only game played in this position,
the GM of White tried an interesting quality sacrifice with} 15. d5 $5 {
[%c_effect d5;square;d5;type;Interesting;persistent;true]} exd5 16. Bxd5 Bxf1
17. Nxf1 {with the idea of bringing the knight to the kingside and creating an
attack since Black's queen and bishop are out of play. This worked in the game,
but the computer always finds some path to equality. Iturrizaga
Bonelli-Ghazarian, Castelldefels 2021.}) 13... O-O (13... Be7 $5 {[%c_effect
e7;square;e7;type;Interesting;persistent;true]} 14. Bxe7 Kxe7 15. Be2 c5 16.
O-O cxd4 17. exd4 Rhd8 {with a roughly equal position in Barkov-Martynov, ICCF
email 2017.}) 14. Bd3 c5 15. O-O cxd4 16. exd4 {[%csl Rc4,Rd4]} Rfe8 17. Qe2
Rac8 $6 {[%c_effect c8;square;c8;type;Inaccuracy;persistent;true] This move is
inaccurate and leads to problems. The correct path is shown in one of the
correspondence games.} (17... Bb4 $1 {[%c_effect b4;square;b4;type;GreatFind;
persistent;true]} 18. Rd1 Rac8 {with equality in Haapamaeki-Raivio, ICCF email
2018.}) 18. c5 $1 {[%CAl Rc2c8,Gf1c1] [%c_effect c5;square;c5;type;GreatFind;
persistent;true] There are two possible doubles for the d2-knight: one on c4
and one on d6.} ({???????????!?????????
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€????????c5??????c????????????????????????
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?????c5?,??c??????!??????????
???????c5??????c?????????????????????????
???????5??????c??????????????????????????
????c5?,??c??????!???????????
??????5??????c???????????????????????????
?????c5??????c???????????????????????????
???c5?,??c??????!????????????
????c5??????c????????????????????????????
????5??????c?????????????????????????????
??c5?,??c??????!?????????????
???5??????c??????????????????????????????
??c5??????c??????????????????????????????
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c5?,??c??????!???????????????
5?,??c??????!???????????????
?,??c??????!??????????????!
} 18. c5 Bxd3 19. Qxd3 Bb4 20. Nc4 Qa6 21. a3 Ba5 22. Qb3 bxc5 23. Qa4 $18 {
[%csl Ra4,Ga6,Rc4][%CAl Ra4a5,Ra4d7,Rc4a5,Ga6a5] ????!}) 18... Qa4 $6
{[%c_effect a4;square;a4;type;Inaccuracy;persistent;true] This move makes
things worse. ????????????!} (18... Nb8 {is also not
enough:} 19. Ne4 $1 {[%CAl Re4d6,Ge2g4,Re4f6] [%c_effect e4; square;e4;type;
GreatFind;persistent;true] A strong computer suggestion.} (19. Bxa6 Qxa6 20.
Qxa6 Nxa6 21. Nc4 Bxc5 22. dxc5 Rxc5 {Black has some drawing chances.
???????,??????????}) 19... Bxd3 20. Qxd3 {
The point is that Black cannot capture on c5:} bxc5 21. Nf6+ $1 {[%c_effect f6;
square;f6;type;GreatFind;persistent;true] ??!} gxf6 22. Bxf6 $18 {
[%csl Rg7][%CAl Gd3g3,Gg3g7] with a decisive attack.}) (18... Bxd3 19. Qxd3 Bb4
$1 {[%c_effect b4; square;b4;type;GreatFind;persistent;true] This move is
probably what Goryachkina missed.} (19... b5 $6 {[%c_effect b5;square;b5;type;
Inaccuracy; persistent;true]} 20. Ne4 $18 {[%CAl Re4d6]}) (19... bxc5 20. Nc4
$18 {????} Qa6 21. Qxa3 Qxa3 22. Nxa3 cxd4 23. Rfc1 $18 {with good
winning chances for White.}) 20. Nc4 Qa6 21. a3 Ba5 (21... bxc5 $5 {[%c_effect
c5;square;c5;type;Interesting;persistent;true]} 22. axb4 cxb4 {is also
possible. This a better version for Black of the piece sacrifice that occurs
in many lines. ??????!}) 22. Qb3 $1 {[%c_effect b3;square;b3;
type; GreatFind;persistent;true]} bxc5 23. Qa4 Nb6 $1 {[%c_effect b6;square;b6;
type; GreatFind;persistent;true]} 24. Qxa5 Qxa5 25. Nxa5 cxd4 {Black has two
pawns for the piece and drawing chances, although White is happy with this
position. ??????????!}) 19. Bxa6 Qxc2 20. Bxc8 Rxc8 21.
Qa6 $1 {[%csl Ga8,Gb8,Gc6,Gc7,Rd8,Ge8,Gf8][%CAl Ra6c8,Ra6a3,Rh4d8] [%c_effect
a6;square;a6;type; GreatFind;persistent;true] A very unpleasant move. Black
has no good squares for the rook.} Rc7 (21... Rb8 22. c6 $1 {[%csl Rc6][%CAl
Rc6d7,Ra6a3] [%c_effect c6;square;c6;type; GreatFind;persistent;true]
??????!!???????} Qxc6 23. Qxa3 {wins a piece.}) (
21... Ra8 22. Qb7 {[%CAl Rb7a8,Rb7d7,Rc5c6]
??????!?????c6?!} Rf8 23. Qxd7 Qxd2 24. c6 $18 {
and the c-pawn decides the game. ?????!}) (21... Re8 22. Qb5 $1 {
[%CAl Rb5e8] [%c_effect b5;square;b5;type;GreatFind;persistent;true]} Qxd2 23.
Qxd7 $18 {[%CAl Rc5c6] again followed by the advance of the c-pawn.}) (21...
Rf8 22. Qxa3 (22. Nf3 {is probably even better.}) 22... Qxd2 23. c6 Qxd4 24.
cxd7 Qxd7 {This endgame is winning for White. ??????}) (21... Rc6 {
Stockfish 271022:} 22. Qxa7 {[%CAl Ra7d7,Ra7a3]} ({Stockfish 271022:} 22. Qxa3
bxc5 23. Qxa7 Rd6 24. Nf3 cxd4 25. Bg3 Rd5 26. Nxd4 $18) ({Stockfish 271022:}
22. Qb7 Ne5 23. Bg3 Bxc5 24. Bxe5 Bf8 25. Nf3 Rc8 26. Bf4 f6 27. h3 Qc6 28.
Qxc6 Rxc6 29. Rc1 Rxc1+ 30. Bxc1 $18) 22... Bxc5 23. Qxd7 Bb4 24. Nf3 Rc8 25.
Bg3 Qc6 26. Qxc6 Rxc6 27. Bf4 $18) 22. Bg3 $6 {[%c_effect g3;square;g3;type;
Inaccuracy; persistent;true]
?????????????,????d8?????!} (
22. Bd8 $1 {[%c_effect d8;square;d8;type;GreatFind; persistent;true] This is a
better way to convert the advantage.} Nb8 (22... Nxc5 23. dxc5 Rxc5 24. Nb3 Rd5
25. Qxa3 Rxd8 26. Qxa7 $18 {with a winning position.}) (22... Rc6 23. Qb7 $1
$18 {[%CAl Rb7d7,Rb7c6] [%c_effect b7;square;b7;type;GreatFind;persistent;
true] Black loses material.}) 23. Qxa3 Rc8 24. Qxa7 Rxd8 (24... Qxd2 {doesn't
solve the problems.} 25. Bxb6 Qxd4 26. c6 $1 $18 {[%csl Rc6][%CAl Ra7b8,Rb6d4,
Rc6c7] [%c_effect c6;square;c6;type; GreatFind;persistent;true]}) 25. Qxb6 Rf8
26. Nf3 Qxa2 27. Ne5 $18 {[%CAl Rc5c6,Rc6c7,Rc7c8] with an easily winning
endgame a pawn up.
???????,??????,????????}) 22...
e5 23. Nf3 $1 {[%csl Ga3,Gc7,Ge5][%CAl Rf3e5,Rg3e5,Rg3c7,Ra6a3] [%c_effect f3;
square;f3;type; GreatFind;persistent;true] The best.} (23. Nc4 $2 {[%c_effect
c4;square;c4; type;Mistake;persistent;true]} Qd3 $1 {[%csl Gc4][%CAl Rd3a6]
[%c_effect d3;square;d3;type;GreatFind; persistent;true]}) 23... Bxc5 $1 {
[%c_effect c5;square;c5;type;GreatFind; persistent;true] Black has to
sacrifice a piece.} (23... Qxa2 24. Nxe5 Nxe5 25. Bxe5 $18 {[%csl Ga2,Ga3,Rc5,
Rd4][%CAl Rd4d5,Rc5c6,Ra6a2] and White wins since Black's pieces are poorly
placed and the c-pawn is ready to advance.}) 24. dxc5 Nxc5 25. Qa3 f6 {Let's
pause and assess the position. White has a material advantage (bishop for two
pawns), but it is not easy to convert: the bishop on g3 is not good.} 26. Rc1
Qg6 27. Nh4 {I don't like this move. A knight on the rim is dim, someone said.}
(27. h3 {I'd rather play a simple move giving some air for the king.}) 27...
Qf7 (27... Qe4 {is an interesting alternative.}) 28. Rd1 $1 {[%CAl Rd1d8,Rd1d7]
} (28. f4 $5 {[%c_effect f4;square;f4; type;Interesting;persistent;true] Maybe
this is a better way to justify White's previous move.}) 28... Rd7 29. Rxd7
Qxd7 30. h3 e4 $1 {[%c_effect e4; square;e4;type;GreatFind;persistent;true]
Now the h4-knight is in trouble. Black prepares g5.} 31. Bb8 $1 {[%CAl Rb8a7,
Ra2a7] [%c_effect b8;square;b8;type;GreatFind; persistent;true] A very good,
practical decision. White gives back material to capture Black's queenside.
The computer suggestion is absurd for a human.} (31. Ng6 Kf7 32. Nf4 g5 {
Every time I analyze games for the Game of the Day, I go through the game on
my physical board, thinking about what happened and writing some notes. Only
after that I check the game with the computer. I analyzed this variation and
stopped here, since the knight is lost. But the machine continues.} 33. Ne2 $1
{[%c_effect e2;square;e2;type;GreatFind; persistent;true]} Qd1+ 34. Kh2 Qxe2
35. Qxa7+ Kg6 36. Qxb6 {Somehow the computer is happy with this position for
White. Not very human.}) 31... g5 (31... a5 32. g4 $1 {[%c_effect g4;square;g4;
type;GreatFind;persistent;true] And now h4-knight is no longer in danger.}) 32.
Qxa7 gxh4 $6 {[%c_effect h4; square;h4;type;Inaccuracy;persistent;true] Now
Black is in deep trouble again.} (32... Qxa7 {leads to an endgame that is
probably winning for White after} 33. Bxa7 gxh4 34. Bxb6 Na6 35. Kf1 {[%csl
Ra2][%CAl Ra2a4,Ra4a5]} Kf7 36. Ke2 Ke6 37. a4 $18 {[%csl Ra4,Ge4,Gf6,Gh4,Gh6]
with bishop against knight, the passed a-pawn, and the weaknesses on the
kingside, I believe White is going to win.}) (32... Qe6 $1 {[%c_effect e6;
square;e6;type;GreatFind; persistent;true] This subtle move is the best.} 33.
Ng6 Nd7 {It turns out the knight is lost anyway.} 34. Nf4 (34. h4 {This
attempt to defend the knight doesn't work.} Kg7 35. h5 Qd5 {and Black is ready
to play Qd1 with a draw.}) 34... gxf4 35. Bxf4 $16 {White still has some
advantage in this endgame, but the drawing chances are good.
????,???}) 33. Qxb6 Ne6 (33... e3 $1 {[%c_effect e3;square;e3;
type;GreatFind;persistent;true] is a desperate attempt to activate the knight
and generate some counterplay.} 34. fxe3 Ne4 $18) 34. a4 {[%CAl Ra4a5,Ra5a6,
Rb6e6] The a-pawn decides the game. White's moves are easy now.} Kf7 35. a5 Nd4
36. Qc7 $1 {[%c_effect c7; square;c7;type;GreatFind;persistent;true] Not
allowing the counterplay after
??????,??a????????????} (36. a6 Ne2+
37. Kh2 Qd1 {Even though White is probably still winning after} 38. f3) 36...
Ke8 37. Qc4 Qb7 38. Qg8+ {Winning material and the match.} Kd7 39. Qf7+ Kc6 (
39... Kc8 40. Qe8#) 40. Qc4+ {[%csl Ra5,Rb6][%CAl Gc4d4,Gd4b6]} 1-0
[Event "4th Duchamp Open Rio 2022"]
[Site "Rio de Janeiro"]
[Date "2022.12.11"]
[Round "?"]
[White "Silva, Caio Henrique Angel"]
[Black "El Debs, Felipe de Cresce"]
[Result "0-1"]
[Annotator "Beauty=10.5"]
[SetUp "1"]
[FEN "r3r1k1/pb2qp1p/1p1p1n2/3p2p1/1P1Pn2N/P2Q2P1/1B2PPBP/1R2R1K1 w - - 0 1"]
[PlyCount "8"]
[EventDate "2022.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[Tiebreak "Cut2 Buchholz"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
{[%evp 0,8,52,2,232,207,-48,-504,-521,-514,-566]} 1. Nf3 {[%tqu "En","Black to
move","","","e4f2","",10]} Nxf2 $1 2. Kxf2 {[%tqu "En","","","","b7a6","",10]}
Ba6 $1 {[%csl Rb5,Rc4,Re3,Re4][%CAl Gd3b3,Gd3f5,Gd3c2,Gd3d1,Gd3a6]} 3. Qf5 (3.
Qxa6 Qe3+ (3... Ng4+ 4. Kg1 (4. Kf1 Qe3 {[%csl Gf2][%CAl Re3f2]} 5. h3 Qf2#)
4... Qe3+ 5. Kh1 (5. Kf1 Qf2#) 5... Nf2+ 6. Kg1 {[%CAl Gf2h3,Re3g1]} Nh3+ {
[%CAl Rh3g1,Re3g1]} 7. Kh1 (7. Kf1 Qf2#) {[%tqu "En","","","","e3g1","",10]}
7... Qg1+ {[%CAl Rf3g1,Re1g1]} 8. Rxg1 (8. Nxg1 Nf2# {[%csl Rg1,Rg2,Rh2]}) 8...
Nf2#) 4. Kf1 Ng4 (4... Ne4) 5. h3 Qf2#) (3. Qc2 Qe3+ $19) (3. Qd2 Ne4+ $19 {
[%CAl Re4f2,Re4d2]}) (3. Qd1 Qe3+ $19) (3. Qc3 Ne4+ $19 {[%CAl Re4f2,Re4c3]}) (
3. Qb3 Bc4 $19 {[%csl Rc2,Gc3,Gd1][%CAl Rc4b3,Re7e3]}) 3... Qe3+ 4. Kf1 Ne4 0-1
[Event "4th Duchamp Open Rio 2022"]
[Site "Rio de Janeiro"]
[Date "2022.12.11"]
[Round "?"]
[White "Lima, Darcy"]
[Black "Moura, Eduardo Eugenio Cha"]
[Result "1-0"]
[Annotator "Beauty=1.4"]
[SetUp "1"]
[FEN "2kr3r/pp2nqpp/2n5/1BBbpp2/Q7/2P2N2/PP3PPP/2KR3R b - - 0 1"]
[PlyCount "4"]
[EventDate "2022.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[Tiebreak "Cut2 Buchholz"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
1... a6 {[%tqu "En","White to move","","","b5a6","",10]} 2. Bxa6 $1 bxa6 (2...
Bxf3 3. gxf3) 3. Qxa6+ {[%CAl Gc8b8,Gc8c7,Gc8d7]} (3. Qxa6+ {[%CAl Gc8b8,Gc8c7,
Gc8d7]} {Stockfish 271022: 1)} Kb8 ({Stockfish 271022: 2)} 3... Kc7 4. Bb6+ {
[%CAl Gc7b8,Gc7d7]} Kb8 (4... Kd7 {[%CAl Gd7d6,Gd7e6]} {Stockfish 271022:} 5.
c4 {[%csl Gd5]} Rb8 6. cxd5 Nxd5 7. Ng5 $18 {[%csl Gf7][%CAl Rg5f7,Rd1d5]}) 5.
Nxe5 {[%csl Gc6][%CAl Ra6a7,Re5f7]} Qe6 6. Rhe1 Qc8 7. Qb5 Qb7 8. Qc5 Rc8 9.
Nxc6+ Rxc6 10. Qxe7 Qxe7 11. Rxe7 Bxg2 12. Be3 g5 13. Bxg5 $18) ({Stockfish
271022: 3)} 3... Kd7 4. c4 Kc7 5. cxd5 Rxd5 6. Qb6+ Kc8 7. Kb1 Qf6 8. Bxe7 Nxe7
9. Rc1+ Kd7 10. Rc7+ Ke8 11. Qb8+ Rd8 12. Qb5+ Kf8 13. Nxe5 $18) 4. Nxe5 {
[%CAl Ra6a7,Ra7c7]} Nxe5 5. Bd6+ Rxd6 6. Qxd6+ Kb7 7. Qxe5 Rd8 8. b3 $18) 1-0
