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Studies awarded for the
Pal Benko
90 Jubilee tournament.
Benko, Pal 1928
[Event "Benko 90 JT"] [Site ""] [Date "2019"] [Round ""] [White "Timman, Jan"] [Black "1.p"] [Result "1-0"] [SetUp "1"] [FEN "7B/5p2/1p6/1P6/7p/b5k1/p1Pp4/4RK2 w - - 0 1"] [PlyCount "31"] [EventDate "2018"] 1. Rd1 ({The reasonable looking} 1. Re3+ $2 Kg4 2. Rd3 {fails to 2...} f6 $1 3. Bxf6 Be7 4. Ba1 Bg5 $11) 1... Bc1 2. Ke2 h3 (2... Kg2 3. Bd4 $18) 3. Rg1+ ({Not } 3. c4 $2 Kg2 4. c5 Ba3 $1 {draw}) 3... Kh2 4. Kf2 (4. Rf1 $2 Kg2 $11) 4... f6 $1 5. Bxf6 Bb2 6. c3 $3 ({The logical try:} 6. Bxb2 d1=N+ $1 7. Rxd1 a1=Q $1 8. Rh1+ Kxh1 9. Bxa1 h2 10. Kg3 Kg1 11. Bd4+ Kh1 12. Bc5 bxc5 13. Kf2 c4 14. b6 c3 {and stalemate can no longer be avoided}) 6... Bxc3 7. Bxc3 d1=N+ ({2nd main line:} 7... a1=Q 8. Rxa1 (8. Bxa1 $2 d1=N+ $1 9. Kf1 Ne3+ 10. Kf2 Nd1+ $11) 8... d1=N+ 9. Kf1 Nxc3 10. Ra5 $3 {zz} Nd5 11. Ra3 Nc7 12. Rb3 Nd5 13. Kf2 { and wins}) 8. Rxd1 a1=Q 9. Rh1+ $1 Kxh1 (9... Qxh1 10. Be5#) 10. Bxa1 h2 11. Kg3 Kg1 12. Bd4+ Kh1 13. Bc5 $1 bxc5 14. Kf2 c4 15. b6 c3 16. b7 {and mates in three.} 1-0
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[Event "Benko 90 JT"] [Site ""] [Date "2019"] [Round ""] [White "Micaloni Mario and Rusz, Árpád"] [Black "2.p"] [Result "1-0"] [SetUp "1"] [FEN "6N1/p7/p3K3/8/P3P3/3k4/8/1n6 w - - 0 1"] [PlyCount "45"] [EventDate "2018"] [Source "Analyze This"] 1. e5 Nc3 (1... Nd2 2. Kd5) 2. Nf6 $1 {1st knight opposition.} (2. Kd7 $2 Ne4 $1 (2... Nxa4 $2 3. Kc6 $18) 3. Kc6 Ng5 $10) 2... Kc4 3. Kd6 Ne2 4. Nh5 $1 { 2nd knight opposition.} (4. e6 Nd4 $11) 4... Nd4 5. Ng7 $1 {3rd knight opposition.} Kb4 (5... a5 6. e6 Nxe6 7. Nxe6 Kb4 8. Nc5 $18) 6. Kd5 Ne2 7. Nh5 $1 Nc3+ 8. Kc6 Ne2 9. Kd6 Nd4 (9... a5 10. Kd5 Nc3+ 11. Kc6 {etc.}) 10. Ng7 $1 {White has managed a first cycle to transfer the move to black.} a5 11. Kd5 Ne2 (11... Nb5 12. axb5 a4 13. e6 a3 14. e7 a2 15. e8=Q a1=Q 16. Qe7+ $1 Kxb5 17. Qb7+ $18) 12. Nh5 Nc3+ 13. Kc6 Ne2 14. Kd6 Nd4 15. Ng7 $1 {White ends the second cycle} a6 (15... Nb5+ 16. axb5 a4 17. Nf5 a3 18. Nd4 Kc3 19. b6 $1 a6 ( 19... a2 20. Nb5+ Kd2 21. b7 a1=Q 22. b8=Q $18) 20. b7 a2 21. Nb3 $1 $18) ( 15... Kxa4 16. Kc5 Kb3 17. Kxd4 a4 18. Nf5 a3 19. Kd3 a2 20. Nd4+ Kb4 21. Nc2+ Kc5 22. Ke4 $18) 16. Kd5 Ne2 17. Nh5 Nc3+ 18. Kc6 Ne2 19. Kd6 Nd4 20. Ng7 $1 { The third cycle finishes. Black has no more tempo moves.} Kxa4 (20... Kc4 21. e6 Nxe6 22. Nxe6 Kb4 23. Nc5 $18) 21. Kc5 Nb3+ 22. Kc4 Nd2+ 23. Kd5 {and wins.} 1-0
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[Event "Benko 90 JT"] [Site ""] [Date "2019"] [Round ""] [White "Arestov Pavel and Zhukov, Alaxander"] [Black "1.hm"] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/P2k4/3q4/4p3/3p4/3R3R/4K3 w - - 0 1"] [PlyCount "13"] [EventDate "2018"] [SourceDate "2018.06.09"] 1. a7 $1 (1. Rh6+ $2 Kc5 2. a7 e3 3. Rh5 exd2+ 4. Kxd2 Qxh5 5. a8=Q Qe2+ 6. Kc3 Qc2# {mate!}) 1... Qb7 (1... Qa5 2. Rh6+ Kd7 3. Rh7+ Ke6 4. Kf1 $1 $11) 2. Rh7 $1 (2. Rh6+ $2 Ke5 3. Ra2 Qb1+ $19) 2... Qxh7 3. Rxd3+ $1 (3. a8=Q $2 Qh1+ 4. Kf2 e3+ $1 $19) 3... Kc7 $1 (3... exd3 4. a8=Q $11) 4. Rd7+ $1 ({Try:} 4. a8=Q $2 Qh1+ 5. Ke2 exd3+ $19) 4... Kxd7 5. a8=Q Qh1+ 6. Ke2 (6. Kf2 $2 e3+ $19) 6... Qf3+ 7. Ke1 (7. Kd2 $2 e3+ $19) 1/2-1/2
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[Event "Benko 90 JT"] [Site ""] [Date "2019"] [Round ""] [White "Timman, Jan"] [Black "2.hm"] [Result "1-0"] [SetUp "1"] [FEN "8/1K6/3R1P1P/8/5n2/2k5/5Bpr/2r5 w - - 0 1"] [PlyCount "27"] [EventDate "2017"] 1. f7 g1=Q $1 2. Bxg1 Rb2+ 3. Kc8 $1 (3. Bb6 Ne6 $11) (3. Kc7 Rb5 $1 (3... Rb3) 4. f8=Q Kb2+ $11) (3. Kc6 Kb4+ 4. Kd7 Ka5 $1 $11) 3... Kb4+ (3... Ne6 4. Rc6+ Kd2 5. Be3+ $1 Kxe3 6. Rxc1 Kf4 7. Re1 Rc2+ 8. Kd7 Nf8+ 9. Ke7 Nh7 10. f8=Q+ Nxf8 11. Kxf8 $18) (3... Kb3+ 4. Kd7 $18) 4. Kb8 $1 (4. Kd7 Ka5 $1 5. Rd5+ Nxd5 6. f8=Q Rb7+ 7. Kd6 Rxg1 $11) 4... Kc4+ 5. Bb6 Ng6 (5... Ne6 6. Rxe6 Rf1 7. h7 Rh2 8. Bf2 $3 Rfxf2 9. Re2 $18) 6. Rxg6 Rf1 7. h7 Rh2 8. Bf2 $3 Rfxf2 9. Rg2 $1 Rfxg2 ({Main-} 9... Rhxg2 10. h8=Q Rxf7 11. Qh4+ $1 Kd5 12. Qh5+ Ke6 13. Qh3+ $18) 10. f8=Q Rb2+ 11. Kc8 $1 Ra2 12. Qg8+ $1 (12. Qf7+ Kd3 $1 $11) 12... Kc5 ( 12... Kd3 13. Kb8 $18 (13. Kb7 $18)) 13. Qe6 $1 {zz} Ra8+ (13... Kd4 14. Qxa2 $18) 14. Kb7 $18 1-0
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[Event "Benko 90 JT"] [Site ""] [Date "2019"] [Round ""] [White "Rusz, Árpád"] [Black "1.c"] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/8/p4r1p/K7/4R3/k4P2/8 w - - 0 1"] [PlyCount "21"] [EventDate "2018"] 1. Rc3 $1 (1. Re4 $2 Kb1 $1 2. Kb3 (2. Rc4 Kb2 $19 {zz}) 2... Rf3+ 3. Ka4 Kc2 4. Kxa5 Kd3 5. Rh4 Rf5+ 6. Kb4 Ke2 7. Kc3 Kxf2 8. Kd3 Kg3 9. Rh1 h4 $19) 1... Kb2 (1... Kb1 2. Kb3 Rxf2 3. Rh3 $11) 2. Rc4 $1 {zz} Rg5 (2... Rxf2 3. Rh4 ({or } 3. Kxa5) 3... Rf5 4. Rxh5 $1 Rxh5 {stalemate}) 3. Rc6 $1 {zz} (3. Rc7 h4) 3... Rd5 (3... h4 4. Rh6 Rg4+ 5. Kxa5 Kc3 6. Kb6 $1 Kd4 7. Rf6 Ke5 8. Rf3 Ke4 9. Rh3 $11) 4. Rc8 $1 {zz} (4. Rc7 $2 Re5 $1 {zz} 5. Rc6 Rg5 $1 {zz} 6. Rc7 h4 7. Rh7 Rg4+ 8. Kxa5 Kc2 (8... Kc3) 9. Kb6 Kd3 10. Kc7 Ke4 $1 {The e4 square was clear!} 11. Rf7 Rf4 12. Rh7 Kf3 $19) 4... Re5 5. Rc7 $1 {zz} h4 (5... Rf5 6. Rc4 {positional draw on 4 pairs of corresponding squares}) 6. Rh7 Re4+ 7. Kxa5 Kc3 8. Kb6 $1 Kd3 9. Kc7 $1 {The white King is hiding from lateral checks. } (9. Kc5 $2 Ke2 10. Rf7 Re5+ 11. Kd4 Rh5 $19) 9... Ke2 {The e4 square was blocked!} 10. Rf7 h3 11. Rh7 {and the pawn cannot be defended.} 1/2-1/2
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[Event "Benko 90 JT"] [Site ""] [Date "2019"] [Round ""] [White "Minski Martin and Afek, Yochanan"] [Black "2.c"] [Result "1-0"] [SetUp "1"] [FEN "8/5K2/P4B2/2k5/2p5/3R2n1/7r/8 w - - 0 1"] [PlyCount "31"] [EventDate "2018"] 1. a7 $1 (1. Ra3 $2 Rh7+ 2. Kg6 Ra7 $11) (1. Rxg3 $2 Ra2 $11) (1. Bd4+ $2 Kd5 2. a7 cxd3 3. a8=Q+ Kxd4 $11) 1... Ra2 (1... Rh7+ 2. Bg7 $18) (1... cxd3 2. a8=Q $18) 2. Bd4+ Kd5 (2... Kc6 3. Rxg3 $18) 3. Rd2 $1 (3. Rd1 $2 c3 4. Bxc3+ Kc6 5. Bd4 Nf5 6. Bg1 Nd6+ $11) 3... Rxd2 4. Bb2 $1 (4. a8=Q+ $2 Kxd4 $11) 4... Rf2+ (4... Rxb2 5. a8=Q+ Kd4 (5... Kc5 6. Qa3+ Rb4 7. Qxg3 $18) 6. Qh8+ {skewer } Kd3 7. Qxb2 c3 8. Qb5+ Kd2 9. Qg5+ Kd1 10. Qd8+ (10. Qxg3 $2 c2 $11) 10... Kc1 11. Ke6 c2 12. Kd5 Ne2 13. Kc4 $18) 5. Ke7 (5. Kg8 $2 Rxb2 6. a8=Q+ Kd4 { /Ke5= no skewer}) 5... Nf5+ 6. Kd7 Rxb2 7. a8=Q+ Kd4 (7... Kc5 8. Qf8+ (8. Qa3+ $2 Rb4 $11) 8... Kb5 9. Qb8+ {skewer} Ka4 10. Qxb2 $18) 8. Qh8+ Kd3 9. Qxb2 c3 10. Qb5+ Kd2 11. Qa5 (11. Qb4 $2 Kd3 12. Qb5+ Kd2 {repeating}) (11. Qxf5 $2 c2 $11) 11... Nd4 (11... Kd3 12. Qxf5+ $18) 12. Kd6 Kd1 $1 (12... Kd3 13. Kd5 (13. Qa6+ $2 Kd2 14. Qa5 Kd3) 13... c2 14. Qa3+ Kd2 15. Qb4+ Kd1 16. Qxd4+ $18) 13. Qa1+ (13. Qxc3 $2 Nb5+ $11) 13... Kd2 14. Kd5 c2 15. Qxd4+ Kc1 16. Kc4 $18 1-0
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[Event "Benko 90 JT"] [Site ""] [Date "2019"] [Round ""] [White "Gurgenidze David and Minski, Martin"] [Black "3.c"] [Result "1/2-1/2"] [SetUp "1"] [FEN "k2KB3/6P1/p1b5/2N5/2R5/8/8/q7 b - - 0 1"] [PlyCount "15"] [EventDate "2018"] {Black To Move} 1... Qf6+ 2. Kc7 Bd5 (2... Qxg7+ 3. Kxc6 $11) 3. g8=Q $1 (3. Nd7 $2 Qxg7 $19) 3... Bxg8 (3... Qe5+ 4. Kb6 Qb8+ 5. Kxa6 $11) (3... Qe7+ 4. Nd7 Bxg8 5. Bf7 $1 {see mainline}) 4. Nd7 Qe7 (4... Qg7 5. Rc6 Ka7 6. Kc8 $11) 5. Bf7 $1 ({ logical try:} 5. Rb4 $2 Bd5 $1 6. Rb8+ Ka7 7. Rb7+ Bxb7 {and no stalemate}) 5... Bxf7 6. Rb4 $1 {mainline A:} Bd5 ({mainline B:} 6... Qxb4 7. Nb6+ Ka7 8. Nc8+ Ka8 9. Nb6+ {perpetual check}) 7. Rb8+ Ka7 8. Rb7+ $1 Bxb7 {pin-model stalemate} 1/2-1/2
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