Endgame Study 1:-Opposite Color Bishops (A)

[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Endgame"] [Black "Oppisite Colour Bishops"] [Result "*"] [SetUp "1"] [FEN "8/4k1p1/8/2b5/2B5/4P1P1/5PK1/8 w - - 0 0"] [PlyCount "18"] {Opposite colure bishop endgame Main properties:-Very drawish even with two extra pawns If Black don't do anything he will lose How to evaluate this position? This is draw but Black has to know how to defend this position so he can defend} 1. Kf3 (1. e4 Kd6 2. Bd3 Ke7 3. f4 Bd4 4. Kf3 Bb2 5. e5 Bc3 6. Ke4 Be1 7. g4 Bc3 8. Kf5 Bd2 9. g5 Be3 10. Ke4 Bc1 11. Bc4 Bd2 12. Bd5 Bc1 13. Bb3 Kf8 14. Bc4 Ke7 15. Bd5 g6 16. Bc4 Bd2 17. Bd3 Bc3 18. Ke3 Kf7 19. e6+ Kxe6 20. Bxg6 Ke7 21. Bd3 Kf7 22. f5 Kg7 23. Kf4 Bd4 24. Bc4 Ba1 25. Ke4 {[%eval 87, 27]}) 1... g5 {Very important to put the pawn on g5 to stop the advance of White pawns. In order to win White has to create two passed pawns. Right now he has one passed pawns.} (1... Bb6 2. Ke4 Bc5 3. f4 {[%cal Ge4f3,Ge3e4]}) 2. Ke4 {[%cal Ge4f5]} Kf6 3. f4 gxf4 4. gxf4 {[%csl Ge3][%cal Gc5e3] It is very important to keep pressure on the backward pawn with bishop. Houdini 3 Pro x64 (40s): 'White has a new protected passed pawn: f4. '} (4. exf4 Bd6 {[%cal Gd6f4]} (4... Bf8 $16 {Houdini 3 Pro x64 (40s)}) 5. g4 Bc7 6. g5+ Kg7 7. f5 Bd8 {[%cal Gd8g5]} 8. g6 (8. f6+ Bxf6 9. gxf6+ Kxf6) 8... Bf6) 4... Ba7 5. Kf3 Bb6 6. e4 {Now White threats e5. So in this position you need to control the e5 square. Remember you can sacrifice your bishop for the two pawns and this will be a draw.} Bc7 {[%cal Gf6e5,Gc7e5]} ({Example line if the White reaches the 6th} 6... Ba7 7. e5+ Ke7 8. Ke4 Bc5 9. f5 Bb6 10. f6+ Kf8 11. e6 Bd8 {Here we reach the same kind of position but will not be able to make a draw here because the Black bishop don't have any squares to go and keep the pressure on f6} 12. Kf5 {[%csl Gd8,Ge7][%cal Gd8f6] Now Black is in zingzowng, if he plays the bishops away White will play e7-e8 and win the game} Ke8 13. e7) 7. Ke3 { Draw Note:-this strategy will work if White's pawns are on the 4th and 5th rank but if White's pawns are on the 6th rank it will not work and we will see why} (7. f5 Be5 {And White can never win}) 7... Bb8 {Putting pressure on the f4 pawn} 8. e5+ (8. Kd4 Bxf4) (8. Ba2 Bd6 $14) 8... Bxe5 {=} 9. fxe5+ Kxe5 { Draw Note:-this strategy will work if White's pawns are on the 4th and 5th rank but if White's pawns are on the 6th rank it will not work and we will see why} *

Members Game 1:-Mina Zaky–Nsls Ngaihboy

[Event "?"] [Site "Sao Paulo/Bilbao"] [Date "2013.06.13"] [Round "?"] [White "Mina Zaky"] [Black "Nsls Ngaihboy "] [Result "*"] [ECO "A40"] [Annotator "Houdini 3 Pro x64 (60m)"] [PlyCount "100"] [EventDate "2012.10.13"] [EventType "match"] [EventRounds "2"] [EventCountry "CHN"] {A40: Unusual replies to 1 d4} 1. d4 g6 2. Nf3 f6 3. e4 Nh6 4. Nc3 Nf7 5. Be3 { last book move} Bg7 (5... c6 6. Be2 $16 (6. Bc4 $16)) 6. Qe2 (6. h4 c6 $16 ( 6... Nc6 $16)) 6... O-O (6... b6 7. O-O-O $16 (7. Qd2 $16)) 7. Qd2 (7. h4 h6 $16) (7. O-O-O b6 $16) 7... c6 {Controls b5} 8. Bc4 (8. h4 d5 $16) 8... a5 9. Bh6 $4 {White has let it slip away 'gives the opponent counterplay'} (9. a3 $142 $16) (9. h4 $142 d5 10. Bd3 $14) 9... Bxh6 $19 10. Qxh6 d5 11. Bxd5 cxd5 12. Qe3 dxe4 13. Nxe4 Nc6 14. h4 (14. O-O Nb4 (14... Nd6 15. Qb3+ Rf7 $19) 15. Qe2 Bf5 $19) 14... Bf5 (14... Nb4 $5 {keeps an even firmer grip 'might be the shorter path'} 15. Qe2 (15. Rc1 Nxa2 16. Ra1 $19) 15... Ra6 16. O-O $19) 15. c3 Qd5 16. Ng3 {[%cal Yh4h5] White intends h5} Nd6 (16... e5 {seems even better} 17. Nxf5 (17. O-O exd4 18. Nxd4 Nxd4 19. cxd4 $19) 17... exd4 18. O-O-O (18. N5xd4 $4 Rfe8 $19) 18... Qxf5 19. Nxd4 Nxd4 20. Rxd4 $19) 17. h5 (17. O-O a4 $19 (17... Kg7 $19)) 17... e5 18. O-O exd4 19. Nxd4 Nxd4 20. cxd4 Rae8 21. Qa3 Bg4 (21... b6 {might be the shorter path 'makes it even easier for Black'} 22. hxg6 (22. Rac1 Nb5 23. Qa4 $19) 22... Bxg6 23. Qc3 $19) 22. hxg6 hxg6 23. Qd3 Kg7 24. Rfc1 Bf3 (24... b6 $142 $19 {nails it down}) 25. Rc7+ Rf7 {'Black threatens to win material: Rf7xc7'} 26. Rc5 {'White threatens to win material: Rc5xd5'} Be4 27. Rxd5 Bxd3 28. Rxd6 f5 29. Nf1 Re2 {'Black threatens to win material: Re2xb2'} 30. Rb6 Ba6 31. d5 f4 32. Rc1 Rd7 33. d6 {'He broke from his leash'} Kf6 34. Nh2 g5 35. Ng4+ {Houdini 3 Pro x64 (40s): 'The knight likes it on g4'} Ke6 36. Rd1 Rc2 37. f3 Rc6 38. Rxc6 bxc6 39. Nf2 Rxd6 40. Rxd6+ Kxd6 {'A minor pieces endgame occured'} 41. Ne4+ Kd5 42. Kf2 Bc4 43. a3 Kd4 44. Nxg5 Kd3 45. Nh3 {'White threatens to win material: Nh3xf4'} Kc2 46. Nxf4 Kxb2 47. a4 Kb3 {'Black threatens to win material: Kb3xa4'} 48. Ke3 Kxa4 49. Nd3 Bxd3 50. Kxd3 Kb3 $11 *

Members Game 2:- Raymond Udofia – Mina Zaky

[Event "Grand Slam Final playoff 5th"] [Site "Sao Paulo/Bilbao"] [Date "2013.06.15"] [Round "?"] [White "Raymond Udofia "] [Black "Mina Zaky"] [Result "*"] [ECO "C44"] [Annotator "Houdini 3 Pro x64 (60m)"] [PlyCount "34"] [EventDate "2012.10.13"] [EventType "match"] [EventRounds "2"] [EventCountry "CHN"] {C44: Ponziani Opening and Scotch Gambit} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Nxf7 Nxf7 7. Bxf7+ Kxf7 8. Qh5+ g6 9. Qxc5 {last book move} d5 10. e5 (10. O-O dxe4 11. c3 Be6 $11) 10... Re8 {Black threatens to win material: Re8xe5} 11. O-O Rxe5 12. Nd2 Bg4 (12... Qd6 13. Qxd6 cxd6 14. c3 $17) 13. f3 (13. Nb3 Qd6 14. Qxd6 cxd6 $15) 13... Bf5 $17 14. g4 (14. Nb3 Qd6 15. Qxd6 cxd6 $17) 14... Re2 (14... Qf6 $142 15. Rf2 b6 $19) 15. Qb5 $2 (15. Ne4 $142 Bxe4 16. fxe4+ Kg7 17. Qxd5 (17. exd5 $4 Qh4 18. Bf4 Qh3 $19) 17... Qxd5 18. exd5 $17) {[%tqu "","","",d3,"",10]} 15... d3 $1 $19 {Mate attack} 16. cxd3 (16. cxd3 Qh4 {Mate attack}) (16. -- $140 Qh4 {Mate threat}) 16... Qh4 17. Qxd5+ Be6 (17... Be6 18. Qd6 cxd6 19. Re1 Qxh2+ 20. Kf1 Qg2#) *

Instructive Game 8:-Akobian, Varuzhan–Gurevich, Dmitry

As a taring when you a see a chess diagram try to find the next move before scrolling down

[Event "USA-ch"] [Site "Tulsa"] [Date "2008.05.13"] [Round "3"] [White "Akobian, Varuzhan"] [Black "Gurevich, Dmitry"] [Result "1-0"] [ECO "D35"] [WhiteElo "2601"] [BlackElo "2513"] [Annotator "Akobian"] [PlyCount "63"] [EventDate "2008.05.13"] [EventType "swiss"] [EventRounds "9"] [EventCountry "USA"] [Source "ChessBase"] [SourceDate "2008.07.03"] {'D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5 '} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 (3... Be7 {Very interesting move. Ideas here is to prevent Bg5 immediately}) 4. Nf3 (4. cxd5 Nxd5 {A rare move but White needs to know what to do here to be able to get some advantage} (4... exd5 {The usual move here} 5. Bg5 Be7 6. e3 O-O 7. Bd3 c6 8. Nge2 {I like the Knight on e2 here instead of f3} Nbd7 9. Qc2 Re8 10. O-O {Just a line} Nf8 {[%cal Gf2f3,Ge3e4] Here we have the idea to pla f3 and e4} 11. f3 {Usually in this kind of structure White's plan is Rb1 and b4-b5 and starts a minority attack , but when you put the knight on e2 you have the idea of playing f3 which i prefer in this kind of position})) 4... c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 {The Main move here for Black is Bb4+ but Black played ...Nc6 this gives White extra option, so what can White play here?} Nc6 9. a3 {Keeping the bishops on the board and that gives White advantage because White is trying to attack, he has the control of the center and with more pieces on the board it is easier to attack. So if you play this as Black you should play ...Bb4+ first} Be7 10. Bd3 O-O (10... Nxd4 $2 11. Nxd4 Qxd4 12. Bb5+) 11. Bb2 (11. O-O $2 {Losses the d pawn} Nxd4 12. Nxd4 Qxd4) 11... Qa5+ {What should White do here Qd2, Nd2 or move the king, What is the best continuation here for White, remember that White is fighting for advantage [#]} 12. Kf1 {Now the game is going to be very sharp because i lost my right to castle and Black will try to do some ideas , Black will do some positions threats and White have to play the right moves to stop these threats.} (12. Nd2 {Not ideal because you lose time by bringing the Knight back and then foreword}) (12. Qd2 Qxd2+ 13. Kxd2 {About equal}) 12... b6 {What is the idea behind this move? [#] Black is trying to play Ba6 exchanging the bishop and if he can manage to exchange this bishop and quickly put his rocks on C8 and d8 it will be extremely difficult to attack because Black is very solid here, no weakness in the king side, so without light square bishops White's attacking chances it will be very little, so White can't allow Ba6 so how he can prevent that?} 13. Qe2 Bb7 {Planning ... Rc8 and ...Rd8 so how can White attack here? Try to find a plan for White not just the next move ? [#]} 14. h4 {[%cal Gh1h3,Gh3g3] Planning Rh3-g3, one of the typical ideas to remember when you lost your right to castle} Rac8 (14... f5 15. exf5 exf5 {How should White continue here? [#]} 16. d5 Qxd5 17. Bc4) 15. Rh3 Nb8 {Planning Ba6 exchanging the bishops and then exchange Queens. So what is White best move to keep the attack and avoid that? [#]} (15... Rfd8 16. Rg3 {[%cal Gd4d5]}) 16. d5 {[%cal Gh3g3,Gd5e6]} (16. Rg3 {Is playable but White has something better}) 16... exd5 {How should White continue? [#]} 17. Rg3 f6 {How should White continue? What is the most precise move to continue the attack? [#]} (17... g6 {Looks very unnatural because it weakness the position. How should White continue? [#]} 18. exd5 Bd6 {[%cal Gd6g3]} 19. Ng5 Bxg3 {What is the winning move? [#]} 20. Qh5 gxh5 21. Nxh7) 18. Nd4 { [%cal Gd4f5,Gf5e7,Gf5g7] The knight and the queen aren't participating in the attack} dxe4 {How should White continue? IS there a strong move for White? [#]} 19. Qg4 {Bringing another piece to the attack with tempo} Rf7 {How should White continue? IS there a strong move for White? [#]} 20. Bxe4 {[%cal Ge4b7] Threating Bxb7} h5 {Trying to deflect the Queen from g4 but this move also weakness the position. So what should White do now? [#]} (20... Qa6+ 21. Bd3 {The Queen goes anywhere then} -- 22. Nf5) (20... Bxe4 $2 21. Qxc8+) 21. Qe6 {[%cal Ge4g6,Gg6f7,Ge6g8] Threating Bg6} (21. Qg6 $6 Bxe4) 21... Bxe4 22. Qxc8+ {[%cal Gc8b8] '+-' Houdini 3 Pro x64 (20s).} (22. Qxe4 $6 {is the weaker alternative} {[%tqu "","","",Nc6,"",10]} Nc6 {Decoy: c6} 23. Rc1 Qa6+ 24. Qd3 Qxd3+ 25. Rxd3 Bc5 $11) 22... Kh7 (22... Rf8 23. Qe6+ {[%cal Ge6e4]}) 23. Qxb8 {Now White is a up a rook, so all he need to do is consolidate his position .} Qd2 {[%cal Gd2b2,Gb2d4,Gb2a1] Black is threating ...Qxb2 then ...Qxd4 or ... Qxa1, in this kind of position where White is up a rock he has a lot of ways to win So how should be White's precise move here? [#]} (23... Qd5 { otherwise it's curtains at once 'there is nothing better in the position'} 24. Qc8 (24. Qe8 Bd6 $18) 24... Bd6 $18) 24. Qe8 (24. Bc3 $6 Bd3+) (24. Re1) 24... Bd5 {Can you find the winning idea ? [#]} (24... Rf8 25. Qxe7) (24... Qxb2 { '??'} 25. Qxf7 {[%cal Gf7g7,Gg3g7]} Qxa1+ 26. Ke2 {White's king is exposed to Queen and bishop, but Black don't have anything here, the d4 knight protects very important squares and Black don't have time to capture it '+-'} Qb2+ ( 26... Qxd4 27. Qxg7#) 27. Ke3 {[%cal Ge3e4,Gf7g7]} Qc3+ 28. Kxe4) 25. Rxg7+ { '!' 'Decoy: g7' '!' Houdini 3 Pro x64 (20s).} Kxg7 (25... Rxg7 26. Qxh5+ { 'Double attack'} (26. Nf5 {Decoy}) 26... Kg8 27. Qxd5+ {[%cal Gd5b3,Ga1e1]}) 26. Nf5+ Kh7 (26... Kg6 27. Nxe7+ {'Mate attack'}) 27. Nxe7 {[%cal Ge8g8,Gg8g6] 'Combination'} Bxg2+ 28. Kg1 {[%cal Ge8f7,Ge8g8,Gg8g6]} Rg7 29. Qxh5+ Qh6 30. Qxh6+ Kxh6 31. Nf5+ Kg6 (31... Kh7 32. Nxg7 $18) 32. Nxg7 $18 1-0

Tactics puzzles 12:-White to play and Mate in two

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Tactics puzzles 11:-White to play and win

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Tactics puzzles 11:-White to play and win important traps for e4 players

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Tactics puzzles 10:-White to play and win

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Tactics puzzles 9:-A trap in the King's Indian

A trap in the King's Indian
Black has just played Nh5 planning to win the White's dark square bishop
White to play and win

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