[Event "20240411 ERC Blitz"] [Site "Bel Air"] [Date "2024.04.11"] [Round "1"] [White "Kattavenos, Chrysovalandis"] [Black "Johnson, Klaus"] [Result "0-1"] [ECO "A80"] [WhiteElo "1243"] [BlackElo "1753"] [Annotator "matta"] [PlyCount "60"] [EventDate "2024.04.11"] [EventType "swiss (blitz)"] [EventRounds "3"] [EventCountry "USA"] [SourceVersionDate "2023.02.12"] {[%evp 9,60,4,65,62,62,10,99,63,73,70,172,79,116,19,18,-40,36,45,160,-100,-65,-771,-771,-897,-860,-937,-933,-934,-693,-870,-669,-662,-674,-713,-587,-547,-538,-540,-523,-519,0,0,-252,-527,-525,-524,-520,-891,-892,-1876,-1823,-2154,-2114] A80: Dutch Defence: Unusual White second moves} 1. d4 f5 2. Bg5 g6 3. h4 Bg7 4. h5 Nf6 (4... h6 5. Bf4 g5 6. Be5 (6. Bh2 d6 7. c3 b6 8. Qd3 e6 9. e4 Ne7 10. exf5 exf5 11. Qf3 d5 12. Bd3 Rf8 13. Nd2 Nbc6 14. O-O-O Qd7 15. Qe2 a6 16. Ngf3 f4 17. g3 g4 18. gxf4 gxf3 19. Nxf3 Kd8 20. Rhg1 Bh8 {Capella Gimenez,J (2099)-Diaz Garcia,A Valencia 2009 1-0 (40)}) 6... Bxe5 7. dxe5 Nc6 8. Nf3 e6 9. Nc3 g4 10. Nh4 Nxe5 11. Qd4 d6 12. O-O-O Ne7 13. e4 N7c6 14. Bb5 O-O 15. Bxc6 Nxc6 16. Qd2 Qg5 17. Qxg5+ hxg5 18. Ng6 Rf7 19. exf5 {Verat,L (2346)-Legky,N (2454) Montigny le Bretonneux 2004 ½-½ (43)}) 5. hxg6 $146 (5. h6 Bf8 6. Nc3 d5 7. f3 Nh5 8. Rxh5 gxh5 9. e4 fxe4 10. fxe4 Bg4 11. Be2 Qd7 12. Nf3 Rg8 13. Bf4 e6 14. Ne5 Qe7 15. Nb5 Bxe2 16. Qxe2 a6 17. Qxh5+ Kd8 18. Nf7+ Kd7 19. Nxc7 Ra7 {Jonathan,F (1860)-Courbiere,J (1640) Paris 2003 ½-½ (34)}) 5... hxg6 {[%eval 65,19]} (5... Ne4 $11 {[%eval 4,21]} 6. Bf4 hxg6 7. Rxh8+ Bxh8) 6. Rxh8+ $14 Bxh8 7. Nf3 {[%eval 10,19]} (7. Nc3 $14 {[%eval 62,21]}) 7... d6 {[%eval 99,19] [#]} (7... Ne4 $11 {[%eval 10,19]}) 8. Nc3 {[%eval 63,20]} ({Better is} 8. Nh4 $1 $16 {[%eval 99,19]}) 8... Nc6 9. e3 Bd7 {[%eval 172,20]} (9... Ne4 $14 {[%eval 70,19]}) 10. Bd3 {[%eval 79,18]} (10. Nh4 $18 {[%eval 172,20]}) 10... Nb4 {[%eval 116,19]} (10... Be6 $142 {[%eval 79,18]}) 11. Kd2 {[%eval 19,20]} ({White should play} 11. Nh4 $16 {[%eval 116,19]}) 11... Nxd3 $11 12. Kxd3 {[%eval -40,19]} (12. cxd3 $11 {[%eval 18,19]} Be6 13. Qe2) 12... Bc6 {[%eval 36,20]} (12... Be6 $1 $15 {[%eval -40,19]}) 13. Qh1 $1 $14 Kd7 {[%eval 160,19]} (13... Be4+ $14 {[%eval 45,20]} 14. Ke2 (14. Nxe4 fxe4+ 15. Kd2 Bg7 $11) 14... Bxf3+ 15. gxf3 (15. Kxf3 Kd7 $11) 15... Kd7) 14. Rd1 $2 {[%eval -100,21] [#]} (14. Bxf6 $16 {[%eval 160,19] is forced if you want to stay better.} Be4+ 15. Nxe4 fxe4+ 16. Kxe4 Bxf6 17. Qh3+ Kc6 18. b3) 14... Ne4 {[%eval -65,20]} ({Black should try} 14... Qg8 $1 $17 {[%eval -100,21] Hoping for ...Ne4.} 15. Bxf6 Bxf6) 15. d5 $2 {[%eval -771,17][%mdl 8192]} (15. Nxe4 $15 {[%eval -65,20]} Bxe4+ 16. Kd2) 15... Nxf2+ $19 16. Ke2 Nxh1 17. dxc6+ bxc6 18. Rxh1 Kc8 19. Rh7 Bf6 20. Bxf6 exf6 21. Nd4 Kb7 22. Ne6 Qg8 23. Rxc7+ Kb8 (23... Kb6) 24. Re7 Kc8 {[%eval -252,16]} (24... a5 $142 {[%eval -519,20]} 25. Nd4 Ra6) 25. Rc7+ $1 Kb8 26. Re7 a5 {Black is clearly winning.} 27. Nd4 Ra6 (27... Ra7 $4 {[%eval 1587,23][%mdl 8192] 27...Ra6 -5.20}) 28. Re6 {[%eval -891,19]} (28. b3 $142 {[%eval -520,21]}) 28... c5 {[%CAl Bc6c5,Bc5d4][%mdl 32]} 29. Nd5 cxd4 30. Nf4 g5 {Weighted Error Value: White=0.95/Black=0.74} 0-1 [Event "20240411 ERC Blitz"] [Site "Bel Air"] [Date "2024.04.11"] [Round "2"] [White "Johnson, Klaus"] [Black "Weber, Whit"] [Result "0-1"] [ECO "B08"] [WhiteElo "1809"] [BlackElo "1363"] [Annotator "matta"] [PlyCount "80"] [EventDate "2024.04.11"] [EventType "swiss (blitz)"] [EventRounds "3"] [EventCountry "USA"] [SourceVersionDate "2023.02.12"] {[%evp 12,79,52,34,46,31,110,79,85,67,61,66,67,46,59,58,55,36,129,120,113,78,117,78,169,94,110,20,21,20,46,-69,-64,-63,26,-71,49,0,68,-72,-18,-105,116,-38,-25,-48,43,23,20,20,133,-74,0,-19,0,-13,68,80,116,84,149,32,184,129,195,38,122,20,9,-29999] B08: Pirc Defence: Classical System} 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Nc3 Nf6 5. Bd3 O-O 6. Bg5 Nbd7 (6... h6 7. Bf4 Nc6 8. Qd2 Kh7 9. e5 dxe5 10. dxe5 Nh5 11. O-O-O Be6 12. Qe3 Qc8 13. h3 Nxf4 14. Qxf4 a6 15. Ne4 Kg8 16. h4 Nb4 17. h5 Nxd3+ 18. Rxd3 Bf5 19. g4 Bxg4 20. Rg1 Bxh5 21. Nf6+ {Bogun,O (2101)-Tugarin,V (2017) Irkutsk 2009 0-1 (36)}) 7. O-O (7. Qd2 c6 8. O-O-O Qc7 9. h4 b5 10. Rde1 e5 11. d5 b4 12. Ne2 cxd5 13. Qxb4 Rb8 14. Qc3 Qb6 15. Bxf6 Nxf6 16. Ng5 h6 17. Nh3 dxe4 18. Bc4 d5 19. Bb3 d4 20. Qd2 a5 21. c3 Be6 {Vasilyev,A-Polkhovskaya,P (1836) Staraya Russa 2012 0-1 (39)}) 7... h6 $146 (7... c5 8. d5 (8. e5 dxe5 9. dxe5 Ng4 10. Nd5 Re8 11. Bb5 Ngxe5 12. Re1 Nxf3+ 13. Qxf3 f6 14. Be3 e6 15. Nf4 Qb6 16. Bxd7 Bxd7 17. Nd3 Qc6 18. Qxc6 Bxc6 19. Nxc5 f5 20. c3 e5 21. f3 Kf7 22. Rad1 Red8 {Martell Pino,A-Silva Martinez,F Malaga 2001 ½-½ (49)}) 8... a6 9. Rb1 b5 10. Re1 c4 11. Bf1 Nc5 12. a3 Qb6 13. h3 a5 14. Nd2 Ba6 15. Be3 Qc7 16. f3 Nh5 17. Bf2 Nd7 18. Ne2 c3 19. bxc3 Bxc3 20. Nxc3 Qxc3 21. Rb3 Qe5 22. Bxb5 {Schmaltz,G (1665)-Fischer,A Wasselonne 2009 0-1 (47)}) (7... b6 8. Qd2 Bb7 9. Bh6 e5 10. d5 Nc5 11. Bxg7 Kxg7 12. Nh4 Nfxe4 13. Bxe4 Nxe4 14. Nxe4 Qxh4 15. Nc3 a6 16. f4 Rae8 17. f5 Qd4+ 18. Qf2 Qxf2+ 19. Rxf2 f6 20. g4 Rd8 21. Rd1 c6 22. h4 {Mansion,M (1510)-Armas,L (1750) Reims 2004 0-1 (53)}) 8. Bf4 Nh5 {[%eval 110,19]} (8... e5 $14 {[%eval 31,20]} 9. dxe5 dxe5 10. Bxe5 (10. Nxe5 Nxe4 11. Bxe4 Nxe5 $14) 10... Nxe5 11. Nxe5 Qe7) 9. Be3 $1 $16 e5 {White is better.} 10. dxe5 Nxe5 11. Nxe5 dxe5 12. Qd2 Kh7 13. Rad1 Be6 {Prevents Bc4.} 14. Be2 Qe7 {[%eval 129,19]} (14... Nf6 $14 {[%eval 36,21]}) 15. Bxh5 gxh5 16. Qe2 {[%eval 78,20]} (16. Nd5 $142 {[%eval 113,20]} Bxd5 17. Qxd5) 16... Qh4 {[%eval 117,19]} (16... Qb4 $142 {[%eval 78,20]}) 17. f3 {[%eval 78,20]} (17. Qb5 $142 {[%eval 117,19]}) 17... Rg8 {[%eval 169,18]} (17... c6 $16 {[%eval 78,20] keeps fighting.}) 18. Bf2 {[%eval 94,21]} (18. Nd5 $18 {[%eval 169,18]}) 18... Qg5 19. h4 {[%eval 20,21]} (19. Nd5 $1 $16 {[%eval 110,18][%CAl Rd5c7]}) 19... Qg6 $11 20. Nd5 Bh3 {[%csl Gh3][%CAl Rg6g2]} 21. Be3 {[%eval -69,23]} (21. Ne3 $1 $14 {[%eval 46,21]}) 21... Bf8 $15 {[%CAl Rh3g2]} 22. Rf2 (22. Nxc7 $2 Bxg2 $1 23. Qf2 Rc8 $19) 22... Bd6 {[%eval 26,20]} (22... c6 $1 $15 {[%eval -63,21]} 23. Nc7 Rc8) 23. c4 {[%eval -71,21]} (23. Kh1 $1 $11 {[%eval 26,20]} Bc8 24. Qd3) 23... b6 {[%eval 49,21]} (23... c6 $17 {[%eval -71,21]} 24. Nc3 Be7) 24. a3 {[%eval 0,21]} (24. Kh1 $14 {[%eval 49,21]} Be6 25. Qc2) 24... Rg7 {[%eval 68,20]} (24... Rad8 $11 {[%eval 0,21]}) 25. b4 {[%eval -72,22]} (25. Kh1 $1 $14 {[%eval 68,20] keeps the upper hand.} Bc8 26. c5 bxc5 27. Qb5) 25... Rag8 {[%eval -18,22]} (25... c6 $1 $17 {[%eval -72,22][%CAl Rc6d5]} 26. Kh1 cxd5 27. gxh3 d4) 26. Rd2 {[%eval -105,20]} (26. c5 $11 {[%eval -18,22]} Qxg2+ 27. Rxg2 Rxg2+ 28. Qxg2 $1 Rxg2+ 29. Kh1) 26... Be6 $2 {[%eval 116,18]} (26... c6 $17 {[%eval -105,20]} 27. Nc3 Be7) 27. Kf1 $2 {[%eval -38,21]} (27. c5 $16 {[%eval 116,18]} c6 28. f4 (28. cxd6 cxd5 29. exd5 Bf5 $11) 28... exf4 29. Bd4 cxd5 30. cxd6 (30. Bxg7 bxc5 31. bxc5 Be7 $11)) 27... Bxd5 28. Rxd5 Qg3 {[%eval 43,20]} (28... Be7 $1 $15 {[%eval -48,21]} 29. f4 Bxh4) 29. c5 (29. Qb2 $5 {[%CAl Rc4c5]}) 29... bxc5 30. bxc5 Qxh4 {[%eval 133,20]} 31. Ke1 $2 {[%eval -74,20] [#]} (31. Qb2 $16 {[%eval 133,20] keeps the pressure on.} Be7 32. Qxe5) 31... Bf8 {[%eval -19,19]} (31... Be7 $1 $17 {[%eval -74,20] ...Rxg2 is the strong threat.} 32. Kd1 Qh1+ 33. Rf1 Qxg2 34. Rxe5 Rd8+ 35. Rd5 h4 36. Rxd8 Bxd8 37. Qxg2 Rxg2) 32. Kd1 $11 (32. Kd2) 32... Rg6 33. Rxe5 Qd8+ {[%eval 68,20]} ({Of course not} 33... Bg7 $6 34. Rd5 $15) (33... Qf6 $11 {[%eval -13,19]} 34. Rd5 Qa1+ 35. Bc1 {[#]} Bxc5 $1) 34. Rd5 $14 Qb8 {[%eval 116,18]} ({Black should play} 34... Qe8 {[%eval 80,18]}) 35. Qc2 {[%eval 84,17]} (35. Qd3 $142 {[%eval 116,18]}) 35... Bg7 {[%eval 149,19]} ({Better is} 35... h4 {[%eval 84,17]}) 36. Rfd2 {[%eval 32,21]} (36. Rxh5 $16 {[%eval 149,19] Hoping for g4.} Qb5 37. a4) 36... Bf6 $2 {[%eval 184,20]} (36... Qb5 $14 {[%eval 32,21]} 37. Ke1 Qa5) 37. Ke1 {[%eval 129,20]} (37. Ke2 $2 {[%eval -35,19] 37.Rxh5 1.83}) (37. Rxh5 $18 {[%eval 184,20] Strongly threatening Rd7.} Bg5 38. f4) 37... Qb5 {[%eval 195,17]} (37... Bh4+ $16 {[%eval 129,20]} 38. Kf1 Qb5+ 39. Qd3 Rb8) 38. a4 $2 {[%eval 38,20]} ({White must play} 38. Rxh5 $18 {[%eval 195,17] Black must now prevent e5.} Qe8 39. Qb3) 38... Qa5 {[%eval 122,20]} (38... Bh4+ $14 {[%eval 38,20]} 39. Bf2 Bxf2+ 40. Rxf2 Qb4+ 41. Kf1 Qa3) 39. Kd1 {[%eval 20,19]} ({Reject} 39. Rxh5 $6 Bc3 $11) (39. Kf1 $16 {[%eval 122,20]}) 39... Qa6 $1 $11 {[%CAl Ra6f1]} 40. e5 $2 {[%eval -32765,17][%mdl 8192]} (40. Re2 $11 {[%eval 9,20]}) 40... Qf1# {Weighted Error Value: White=0.82/Black=0.63} 0-1 [Event "20240411 ERC Blitz"] [Site "Bel Air"] [Date "2024.04.11"] [Round "1"] [White "Whitehurst, James (Pat)"] [Black "Klaus, Johnson"] [Result "0-1"] [ECO "B45"] [WhiteElo "1052"] [BlackElo "1809"] [PlyCount "58"] [EventDate "2024.04.11"] [EventType "swiss (blitz)"] [EventRounds "3"] [EventCountry "USA"] [SourceVersionDate "2023.02.12"] {[%evp 17,57,11,3,-67,-69,-163,-163,-253,-98,-202,-61,-278,-275,-1175,-1179,-1279,-1280,-1274,-1274,-1583,-1578,-1955,-1973,-2005,-1782,-2390,-2392,-2444,-2489,-29979,-2403,-4135,-2253,-29978,-29978,-29984,-29984,-29996,-29988,-29998,-29999,-29999] B45: Sicilian Four Knights} 1. e4 c5 2. Nc3 d6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nxc6 bxc6 7. Bc4 e6 8. O-O Be7 9. Bg5 (9. Be3 O-O 10. Qe2 d5 11. Rad1 Qc7 12. exd5 cxd5 13. Bd3 Nd7 14. Nb5 Qb7 15. Bd4 Bf6 16. Bxf6 Nxf6 17. b3 Bd7 18. Nd4 a5 19. Rfe1 Qb6 20. Nf3 Bc8 21. Ne5 Ba6 22. c4 Rfd8 23. Qf3 Bb7 {Popovic,M (2275)-Berebora,F (2275) Budapest 1990 ½-½ (42)}) 9... O-O 10. b4 $146 {[%eval -67,20]} (10. Qf3 $11 {[%eval 3,18]}) (10. Qd2 Qc7 11. Bf4 Rd8 12. Rad1 Bb7 13. Rfe1 Ne8 14. Bb3 Qb6 15. Na4 Qb5 16. Nc3 Qb6 17. Bg5 Nf6 18. Qf4 Qc5 19. Na4 Qa5 20. Qd2 Qxd2 21. Bxd2 Rac8 22. Ba5 Rd7 23. f3 c5 24. Bc4 Bc6 {Lewtak,D (1758)-Miskiewicz,K Lublin 2007 1-0 (69)}) (10. Bxf6 Bxf6 11. h3 Bd7 12. Bd3 Qc8 13. Qh5 h6 14. Qf3 Rb8 15. b3 Bxc3 16. Rad1 Be5 17. Rfe1 Qc7 18. c4 d5 19. cxd5 Bh2+ 20. Kf1 c5 21. dxe6 Bxe6 22. g3 Bxg3 23. fxg3 Bxh3+ 24. Ke2 Qa5 {Schubert,V (896)-Burian,S (887) Sebnitz 2011 1-0}) (10. Bb3 Bb7 11. Re1 h6 12. Bh4 Qc7 13. Qf3 e5 14. Rad1 Rad8 15. Nb1 Bc8 16. h3 Nh7 17. Bxe7 Qxe7 18. c4 Ng5 19. Qg3 Ne6 20. Nc3 Ba6 21. a4 Rb8 22. Nb1 Nc5 23. Nd2 Qb7 24. Re3 Qb4 {Thompson,H-Gilmetdinov,E (1300) South Perth 2006 0-1 (47)}) 10... Rb8 $15 11. b5 {[%eval -163,21]} ({Better is} 11. Rb1 $15 {[%eval -69,19]}) 11... cxb5 $19 12. Bxb5 {[%eval -253,21]} (12. Bd3 $142 {[%eval -163,20]}) 12... Qc7 $2 {[%eval -98,21]} (12... Qa5 $19 {[%eval -253,21] is more deadly.} 13. Qd3 a6) 13. Qd4 {[%eval -202,20] [#]} (13. Qd3 $17 {[%eval -98,21]}) 13... Bb7 {[%eval -61,20]} (13... Qa5 $1 $19 {[%eval -202,20]} 14. Qd3 a6) 14. f3 $2 {[%eval -278,19]} (14. Rab1 $15 {[%eval -61,20]}) 14... d5 {[%CAl Bd6d5,Bd5e4][%mdl 32] White must now prevent ...Bc5.} 15. Rfe1 $2 {[%eval -1175,15]} (15. Na4 {[%eval -275,20]} dxe4 16. fxe4) 15... Bc5 16. Qxc5 Qxc5+ 17. Be3 Qxc3 18. Rac1 dxe4 19. f4 Ng4 20. Bxa7 Ra8 21. Bf2 Nxf2 22. Kxf2 Qc5+ 23. Kg3 Qxb5 {[%eval -2403,20]} (23... Ra3+ $142 {[%eval -32725,18]} 24. c3 Qxb5 25. Rg1 Qd3+ 26. Kh4 Rxa2 27. Ra1 Rf2 28. Ra5 Qe3 29. Rg5 Qxf4+ 30. Kh3 Qxg5 31. Re1 Qxg2+ 32. Kh4 Qxh2+ 33. Kg5 Rg2#) 24. Rb1 Qc6 {[#] Threatens to win with ...Ra3+.} 25. h4 Rxa2 {Black mates.} 26. Rec1 e3 {[%csl Gb7][%CAl Rc6g2]} 27. h5 f5 28. Re1 Qxg2+ 29. Kh4 Qg4# {Weighted Error Value: White=1.94/Black=0.93} 0-1 [Event "20240411 ERC Blitz"] [Site "Bel Air"] [Date "2024.04.11"] [Round "?"] [White "Badger, S."] [Black "Vanegas, Johnagthan"] [Result "1-0"] [ECO "C07"] [PlyCount "49"] [EventDate "2024.04.11"] [EventType "swiss (blitz)"] [EventRounds "3"] [EventCountry "USA"] [SourceVersionDate "2023.02.12"] {[%evp 9,49,-5,1,-67,-66,-98,-38,-48,-28,-43,-43,-25,-19,-8,0,8,36,32,32,33,50,30,28,21,55,64,66,63,74,67,179,186,365,136,620,517,586,586,876,873,29998,29999] C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 cxd4 5. cxd4 Nc6 6. Ne2 {[%eval -67,18]} (6. Ngf3 $1 $11 {[%eval 1,18]}) 6... Bb4 $15 (6... dxe4 7. Nxe4 Nf6 8. Nxf6+ Qxf6 9. a3 Bd6 10. Be3 O-O {½-½ (10) Repasi,Z (2315)-Horvath,J (2175) Hungary 1997}) 7. exd5 $146 {[%eval -98,20]} (7. e5 $15 {[%eval -66,20] should be considered.}) (7. Qc2 Bd7 8. a3 Bxd2+ 9. Bxd2 Rc8 10. Qd3 Qb6 11. exd5 exd5 12. Bc3 Nf6 13. Nf4 O-O 14. Be2 Ne4 15. Nxd5 Nxf2 16. Kxf2 Qd8 17. Rhf1 Bh3 18. Nf4 Bxg2 19. Nxg2 f5 20. Kg1 Qb6 21. Kh1 Nd8 {Anders,E (1832)-Wichmann,J (1479) Bad Homburg 2012 1-0}) 7... Qxd5 {[%eval -38,21]} (7... exd5 $17 {[%eval -98,20] aiming for ...Nf6.} 8. a3 Bd6) 8. a3 {Black is slightly better.} Ba5 (8... Qa5 9. axb4 Qxa1 10. Nc3 Nxd4 11. Bb5+ Ke7 12. O-O Nxb5 13. Nxb5 $16) 9. b4 Bb6 10. Nf3 Nf6 11. Nc3 $36 {[%mdl 2048] White has good play.} Qd6 {[%CAl Rc6d4]} 12. Be3 $1 a6 13. Be2 O-O 14. O-O Re8 15. Na4 Bc7 16. g3 e5 {[%eval 55,20]} (16... Nd5 $11 {[%eval 21,19]}) 17. dxe5 $14 Qxd1 18. Rfxd1 Nxe5 19. Rac1 Nxf3+ {[%eval 179,21]} (19... Nc6 $14 {[%eval 67,19]}) 20. Bxf3 $18 Be5 {[%eval 365,19] [#]} (20... Bd8 {[%eval 186,22] is a better defense.} 21. Nc5 Bb6) 21. Nc5 $2 {[%eval 136,21]} (21. Nb6 $18 {[%eval 365,19] and the rest is easy.} Bg4 22. Bxg4 (22. Nxa8 Bxf3 23. Nb6 Bb2 $11) (22. Bxb7 Rab8 $14) 22... Nxg4 23. Nxa8 Nxe3 24. fxe3 Rxa8 25. Rd7) 21... b6 {[%eval 620,21][%mdl 8192]} (21... Rb8 $16 {[%eval 136,21]}) 22. Nd3 Rb8 23. Nxe5 Rxe5 24. Bf4 Rf5 25. Rd8+ {Weighted Error Value: White=0.39/Black=0.95} 1-0 [Event "20240411 ERC Blitz"] [Site "Bel Air"] [Date "2024.04.11"] [Round "3"] [White "Weber, Whit"] [Black "Badger, Steve"] [Result "1-0"] [ECO "C45"] [WhiteElo "1363"] [BlackElo "1465"] [Annotator "matta"] [PlyCount "93"] [EventDate "2024.04.11"] [EventType "swiss (blitz)"] [EventRounds "3"] [EventCountry "USA"] [SourceVersionDate "2023.02.12"] {[%evp 11,93,13,31,14,33,27,35,0,17,-1,26,-63,-49,-49,-1,-1,42,0,12,14,1,0,102,16,19,23,23,-23,-8,-8,75,72,92,79,225,101,333,92,254,251,254,250,250,251,241,243,314,321,354,201,205,144,227,243,246,225,226,233,242,209,207,207,208,203,203,144,147,103,105,26,61,61,112,22,23,43,106,105,112,102,104,89,84,86] C45: Scotch Game} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 bxc6 6. Bd3 Ne7 7. O-O O-O 8. Nd2 (8. Nc3 a5 9. Kh1 f5 10. exf5 Nxf5 11. Qh5 d5 12. g4 g6 13. Qh3 Nh4 14. Qg3 Rf3 15. Qe5 Bd6 16. Bg5 Qd7 17. Qd4 Rh3 18. Bf4 Qxg4 19. Rg1 Qf3+ {0-1 (19) Montoya,D (1496)-Olson,D (1516) San Francisco 2011}) 8... d6 9. Kh1 {[%eval 0,18]} (9. Qh5 $14 {[%eval 35,19] was preferrable.}) (9. Nb3 Bb6 10. Bg5 Be6 11. c3 h6 12. Bh4 g5 13. Bg3 f5 14. exf5 Nxf5 15. Bxf5 Bxf5 16. Nd4 Qd7 17. a4 Bxd4 18. Qxd4 c5 19. Qd2 a5 20. Rfe1 Rfe8 21. h4 gxh4 22. Bxh4 Kh7 23. Qf4 Bg6 {Kobalia,M (2593)-Lastin,A (2510) Samara 2000 ½-½}) 9... Re8 $146 (9... Bb6 10. a4 a5 11. Nc4 f5 12. Nxb6 cxb6 13. f4 Ba6 14. Bxa6 Rxa6 15. exf5 Rxf5 16. Ra3 Ra7 17. Rh3 d5 18. Qd3 g6 19. g4 Rf7 20. f5 gxf5 21. gxf5 d4 22. c4 c5 23. Rg3+ Kh8 24. f6 {Van den Doel,E (2440)-Simacek,P (2285) Rimavska Sobota 1996 ½-½ (42)}) 10. f4 Ng6 11. f5 {[%eval -63,20]} ({White should try} 11. Qh5 $11 {[%eval 26,20]}) 11... Ne5 $15 12. Nf3 Nxd3 {[%eval -1,17]} (12... Ng4 $15 {[%eval -49,20]}) 13. cxd3 $11 h6 {[%eval 42,20]} (13... Bb6 $11 {[%eval -1,17] deserves consideration.}) 14. a3 {[%eval 0,19]} (14. Qc2 $14 {[%eval 42,20]}) 14... a5 15. Bd2 d5 16. Qc2 dxe4 {[%eval 102,19]} (16... Bb6 $11 {[%eval 0,18]}) 17. Qxc5 {[%eval 16,20]} (17. dxe4 $16 {[%eval 102,19]} Bf8 18. Bc3 (18. Qxc6 Ra7 $16)) 17... exf3 18. Rxf3 Qd5 19. Rc1 {[%eval -23,21]} (19. Qf2 {[%eval 23,19] feels stronger.}) 19... Qxc5 20. Rxc5 Re2 {[%eval 75,22]} (20... Rb8 $1 $11 {[%eval -8,21] keeps the balance.}) 21. Bc3 $16 Bd7 22. h3 {aiming for Rg3.} a4 {[%eval 225,20]} (22... f6 $16 {[%eval 79,21]}) 23. Kg1 {[%eval 101,22]} (23. Rg3 $18 {[%eval 225,20]} f6 24. Bxf6) 23... Ree8 $2 {[%eval 333,21] [#]} (23... f6 $16 {[%eval 101,22]}) 24. g4 $2 {[%eval 92,20]} (24. Rg3 $1 $18 {[%eval 333,21][%CAl Rg3g7] is the precise move to win.} g5 25. fxg6) 24... g6 {[%eval 254,20]} (24... Re2 $16 {[%eval 92,20] keeps fighting.}) 25. fxg6 $18 fxg6 26. Rf6 Re6 27. Rxe6 Bxe6 28. Rxc6 {[%mdl 4096] Endgame KRB-KRB} Kf7 29. Rxc7+ Ke8 30. Bb4 {[%eval 201,20]} (30. Rh7 $142 {[%eval 354,23] Threatens to win with Rh8+.} Ra6 31. Rxh6) 30... Bd7 31. d4 {[%CAl Bd3d4,Bd4d5][%mdl 32]} Ra6 {[%eval 227,22]} (31... Rc8 $16 {[%eval 144,22]} 32. Rc3 Rxc3 33. bxc3 Bb5) 32. d5 Kd8 33. Rc3 Rf6 34. Kg2 h5 35. Rf3 Rxf3 36. Kxf3 hxg4+ 37. hxg4 {KB-KB} Kc7 38. d6+ Kc6 39. g5 {[%eval 103,32]} (39. Kf4 $142 {[%eval 147,31]}) 39... Kd5 40. Kf4 {[%eval 26,28]} (40. Ke3 $16 {[%eval 105,33]}) 40... Bf5 {[%eval 61,29]} (40... Bb5 $11 {[%eval 26,28]}) 41. Ke3 $1 $14 Kc4 {[%eval 112,32]} (41... Ke5 $14 {[%eval 61,27]}) 42. Bc3 {[%eval 22,29]} (42. Ba5 $16 {[%eval 112,32]}) 42... Kd5 $11 43. Bb4 Kc4 {[%eval 106,32]} (43... Ke5 $14 {[%eval 43,26]}) 44. Kd2 {White is better.} Kb3 45. Bc3 Kc4 46. Be5 Kd5 47. Bh2 {Weighted Error Value: White=0.48/Black=0.33} (47. Bg3) (47. Bg3 Kd4 (47... Ke6 {[%eval 195,29] 47...Kd4 0.83} 48. Kc3 Kd5 49. b3 axb3 50. Kb2 $2 {[%eval 23,34]} (50. Kxb3) ({White should play} 50. Kxb3 $18 {[%eval 194,27]} Kc5 51. Ka4))) 1-0 [Event "20240411 ERC Blitz"] [Site "Bel Air"] [Date "2024.04.11"] [Round "4"] [White "Johnson, Klaus"] [Black "Weber, Whit"] [Result "0-1"] [ECO "B73"] [WhiteElo "1809"] [BlackElo "1722"] [Annotator "matta"] [PlyCount "72"] [EventDate "2024.04.11"] [EventType "swiss (blitz)"] [EventRounds "3"] [EventCountry "USA"] [SourceVersionDate "2023.02.12"] {[%evp 17,72,13,45,29,54,54,139,139,359,124,314,128,156,71,150,159,125,49,108,37,162,162,331,167,176,98,342,108,111,118,97,-498,-500,-580,-524,-550,-480,-485,-429,-577,-512,-486,-515,-523,-588,-777,-802,-994,-1016,-1203,-1089,-29975,-29975,-2157,-2373,-29993,-29993] B73: Sicilian Dragon: Classical System without 9 Nb3} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 d6 7. Be2 Nf6 8. O-O O-O 9. Qd2 a6 {[%eval 45,19]} (9... Ng4 $11 {[%eval 13,19]}) 10. Rad1 Ne5 (10... Ng4 11. Bxg4 Bxg4 12. f3 Be6 13. Nd5 Rc8 14. Nxe6 fxe6 15. Nb6 Rc7 16. c4 Ne5 17. Qb4 Rc6 18. a4 Qc7 19. b3 Nd7 20. a5 Nxb6 21. Bxb6 Qc8 22. Qd2 Qe8 23. Qd3 Qf7 24. f4 Bb2 25. Rb1 {Psakhis,L (2560)-Ubilava,E (2500) Belgrade 1988 1-0 (50)}) (10... Qc7 11. Kh1 Nxd4 12. Bxd4 e5 13. Be3 Rd8 14. f3 Be6 15. Na4 Qe7 16. Nb6 Rab8 17. c4 Bf8 18. Bg5 Bg7 19. b3 Qc7 20. Be3 Nh5 21. Rc1 Nf4 22. Nd5 Qc6 23. Ne7+ Kf8 24. Nxc6 bxc6 25. Bxf4 {Christiansen,N (1775)-Bremer,E (1547) Helsingor 2012 1-0}) 11. h3 b5 {[%eval 139,21]} (11... Bd7 $14 {[%eval 54,20]}) 12. f4 $146 {White is clearly better.} (12. f3 Bd7 13. Bd3 Rc8 14. Nce2 Nc4 15. Bxc4 Rxc4 16. c3 Re8 17. Nc2 Qb8 18. a3 Rec8 19. Bf2 a5 20. Ne3 R4c7 21. Nc2 Be6 22. Rfe1 Bb3 23. Ned4 Bxc2 24. Nxc2 Rd7 25. Qd4 Rc6 26. Qe3 Rc5 {Minigalimov,F-Sedenko,A (2050) Sterlitamak 2008 0-1 (43)}) 12... Ned7 {[%eval 359,18]} (12... Nc4 $16 {[%eval 139,22]} 13. Bxc4 bxc4) 13. Bf3 $2 {[%eval 124,20]} (13. Nc6 $18 {[%eval 359,18] and the rest is easy.} Qe8 14. e5) 13... e5 $2 {[%eval 314,19]} (13... b4 $16 {[%eval 124,20]}) 14. Nb3 {[%eval 128,21]} (14. Nc6 $18 {[%eval 314,19]} Qc7 15. Qxd6 Qxd6 16. Rxd6) 14... Ne8 15. Qf2 {[%eval 71,19]} (15. f5 $142 $1 {[%eval 156,18]}) 15... Qe7 {[%eval 150,19]} (15... exf4 $142 {[%eval 71,19]} 16. Bxf4 Bb7) 16. Nd5 Qd8 17. Rd2 {[%eval 49,19]} (17. f5 $16 {[%eval 125,18]}) 17... Bb7 {[%eval 108,18]} (17... exf4 $1 $14 {[%eval 49,19]} 18. Bxf4 Bb7) 18. Rfd1 {[%eval 37,20]} ({White should play} 18. f5 $1 $16 {[%eval 108,18]}) 18... f5 {[%eval 162,19]} (18... exf4 $14 {[%eval 37,20]} 19. Bxf4 Ne5) 19. exf5 $18 gxf5 {[%eval 331,20] [#]} (19... exf4 {[%eval 162,19] was worth a try.} 20. Bxf4 Rxf5) 20. fxe5 {[%eval 167,21]} (20. Na5 $142 $1 {[%eval 331,20][%mdl 512]} Rb8 21. Nxb7 Rxb7 22. Ne7+ $1 {[%mdl 512]} Qxe7 23. Bxb7) 20... Nxe5 21. Bb6 {[%eval 98,21]} ({Better is} 21. Bd4 $18 {[%eval 176,18]}) 21... Qg5 $2 {[%eval 342,18]} (21... Qh4 $2 {[%eval 1436,16][%mdl 8192] 21...Nxf3+ 0.98}) (21... Nxf3+ $16 {[%eval 98,21]} 22. Qxf3 Qxb6+ 23. Nxb6 Bxf3 24. gxf3 Ra7) 22. h4 $2 {[%eval 108,21]} (22. Na5 $18 {[%eval 342,18] is the precise move to win.}) 22... Nxf3+ $16 23. Qxf3 Qxh4 (23... Qh5 $2 {[%eval 1421,16][%mdl 8192] 23...Qxh4 1.00}) 24. Ne7+ $2 {[%eval -498,18][%mdl 8192]} Qxe7 $19 25. Qf2 Be5 {Hoping for ...Nf6.} 26. Bd4 Qf6 27. Bxe5 dxe5 28. Rd7 Be4 29. Nc5 Qg6 30. Nxe4 fxe4 31. Qc5 Nf6 {Inhibits Qd5+.} 32. R1d6 Rac8 33. Qb4 Kh8 34. c3 Rg8 {[%csl Gg8][%CAl Rg6g2]} 35. Rd2 Nxd7 36. Qxe4 Qxe4 {Weighted Error Value: White=1.07/Black=0.86} 0-1