www.arves.org - Benko-80 JT 2008

Benko-80 JT 2008

[Event "1st prize Benko 80 JT - "] [Site ""] [Date "2008"] [Round ""] [White "Iuri Akobia (Georgia)"] [Black "A) Main Group"] [Result "1-0"] [SetUp "1"] [FEN "8/8/1q6/8/p4r1k/2Q5/P7/R3K3 w Q - 0 1"] [PlyCount "19"] [EventDate "2008"] 1. O-O-O $1 Qf2 (1... Qe6 2. Rh1+ Kg5 3. Qg7+ Kf5 4. Rh5+ Ke4 5. Qg2+ $18) ( 1... Qf6 2. Rh1+ Kg5 ({also} 2... Kg4 3. Qh3+ $18) 3. Qa5+ Rf5 ({also} 3... Qf5 4. Qd8+ $18) 4. Qd2+ Kg4 ({also} 4... Kg6 5. Rh6+ $18) 5. Qg2+ (5. Rg1+ $5 Kh5 6. Qe2+ Kh6 $11) 5... Kf4 6. Rf1+ (6. Qh2+ $5 Ke4 7. Qc2+ Ke5 $11) 6... Ke5 7. Qe2+ $18 (7. Qb2+ $5 Ke6 8. Qb6+ Kf7 $1 9. Qb7+ Kg6 $11)) 2. Rh1+ (2. Qh8+ $5 Kg4 3. Qg8+ (3. Qg7+ Kf3 4. Qb7+ Kg4 $11) 3... Kh5 4. Qh7+ (4. Rh1+ Rh4 5. Qh7+ Kg5 $11) 4... Kg5 5. Qg7+ Kh5 $11) 2... Kg4 (2... Kg5 3. Qg7+ Kf5 4. Rh5+ Ke4 5. Qg6+ (5. Qb7+ $5 Kd3 6. Rh3+ Kd4 7. Qa7+ Ke4 8. Qxa4+ Ke5 $11) 5... Ke3 6. Re5+ Kf3 7. Qh5+ Rg4 (7... Kg3 8. Rg5+ $18) 8. Rf5+ $18) 3. Qh3+ Kg5 4. Qh6+ Kf5 (4... Kg4 5. Qh5+ Kg3 6. Qh3#) 5. Rh5+ Ke4 (5... Kg4 6. Qg6+ Kf3 7. Rh3+ $18) 6. Qg6+ $1 (6. Qe6+ $5 Kd3 7. Qg6+ Kc4 $1 8. Qa6+ Kc3 9. Rh3+ Kd4 10. Qxa4+ Ke5 11. Rh5+ Rf5 $11) 6... Kd4 (6... Kf3 7. Rh3+ Ke2 8. Qd3+ $18) 7. Qd6+ $1 (7. Qb6+ $5 Kd3 8. Rh3+ Ke4 $11) 7... Kc4 {Main B} (7... Ke4 {Main A} 8. Qd5+ Ke3 9. Re5+ $18) 8. Qd5+ (8. Qa6+ $5 Kc3 $1 9. Rh3+ Kd4 10. Qxa4+ Ke5 $11) 8... Kc3 9. Rh3+ Kb4 10. a3# {The long castling start not new. Generally a shorter solution follows it. The long solution ends with a surprising matte. The main line heavy to emphasize from among the others.} 1-0

[Event "2nd prize Benko 80 JT -"] [Site ""] [Date "2008"] [Round ""] [White "Richard Becker (USA)"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/3Q4/8/7p/7p/8/n1pp4/3k1K2 w - - 0 1"] [PlyCount "32"] [EventDate "2008"] 1. Qa4 $1 (1. Qd5 $2 {(Qf7?)} Kc1 $1 {-+}) (1. Qe6 $2 Nc1 $1 2. Kg2 Ne2 3. Kf2 (3. Qb3 Ke1 {-+}) 3... Nd4 {-+}) 1... Nc1 (1... Kc1 2. Qa3+ Kb1 3. Qb3+ {=}) ( 1... Nc3 2. Qb3 h3 3. Kf2 h2 4. Qxc3 h1=N+ 5. Kg2 c1=Q 6. Qf3+ Kc2 7. Qf5+ Kb2 8. Qb5+ Ka2 9. Qa4+ Qa3 10. Qc2+ {=}) 2. Kg2 Nd3 3. Qb3 Ke1 (3... Ne5 4. Kh2 h3 5. Kxh3 Nc4 6. Kg3 Kc1 (6... h4+ 7. Kf2 Kc1 8. Qa2 {(Qa4)} d1=Q 9. Qa1+ Kd2 10. Qd4+ {=}) 7. Qxc4 d1=Q 8. Qf4+ Qd2 9. Qf1+ Kb2 10. Qb5+ Ka3 11. Qa6+ Kb3 12. Qe6+ Kb2 13. Qb6+ Kc1 14. Qg1+ Qd1 15. Qe3+ {=}) 4. Qe6+ Kd1 5. Qb3 Nb2 (5... Nc5 6. Qf3+ Kc1 7. Qa3+ {=}) 6. Qf3+ $1 (6. Kh2 $2 Kc1 7. Qe3 Nc4 8. Qf4 h3 {zz } 9. Kxh3 Kb1 10. Qxc4 c1=Q 11. Qb3+ Qb2 12. Qd1+ Ka2 {-+}) 6... Kc1 7. Qe3 Nc4 8. Qf4 {zz} h3+ 9. Kh2 {zz} h4 (9... Kb1 10. Qxc4 c1=Q 11. Qb3+ {=}) 10. Qxc4 d1=Q 11. Qf1 $1 {zz} Kd2 12. Qf4+ Kc3 13. Qc7+ Kb2 14. Qe5+ Kb1 15. Qb5+ Kc1 16. Qf1 Qxf1 {stalemate. Unusual position where is the White Queen operating alone to escape with perpetual check, ZZ and eventually stalemate. It is a noteworthy achievement.} 1/2-1/2

[Event "2nd HM Benko 80 JT - "] [Site ""] [Date "2008"] [Round ""] [White "W.Bruch & M. Minski (Germany)"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "4B3/1p2R3/8/5P2/1r1k4/5K2/8/5b2 w - - 0 1"] [PlyCount "25"] [EventDate "2008"] 1. f6 $1 (1. Re4+ $2 Kc5 $1 (1... Kc3 $2 2. f6 (2. Rxb4 $2 Kxb4 3. f6 Bc4 $11) 2... Bg2+ $5 (2... Rxe4 3. f7 $1 $18) 3. Kg3 $3 (3. Kxg2 $2 Rxe4 4. f7 Rf4 $11) 3... Bxe4 4. f7 $18 {(4...Rb3??)}) 2. f6 $2 (2. Rxb4 Kxb4 3. f6 Bc4 $11) 2... Bg2+ $3 (2... Rb3+ $2 3. Kg4 $1 $18) 3. Kg3 (3. Kxg2 Rxe4 4. f7 Rf4 $19) 3... Bxe4 4. f7 Rb3+ $1 5. Kg4 Rf3 $19) 1... Rb3+ $1 (1... Bc4 $2 2. Re4+ Kc5 3. Rxc4+ Kxc4 4. f7 Rb1 5. Kf2 $18) (1... Rb6 $2 2. Re4+ Kc5 3. f7 Rf6+ 4. Rf4 $1 $18) 2. Kf4 (2. Kg4 $2 Bc4 $11) 2... Rh3 (2... Bc4 $2 3. Re4+ Kc5 4. Rxc4+ Kxc4 5. Bf7+ (5. f7 $2 Rb1 $1 $11) 5... Kc3 6. Bxb3 $18) 3. f7 $1 ({thematic try:} 3. Bf7 $2 Rh4+ $1 4. Kg5 Rh2 $1 {main line A:} 5. Bb3 ({main line B:} 5. Be6 Rg2+ 6. Kh4 Rh2+ (6... Rf2 $2 7. f7 $18) 7. Kg3 (7. Kg5 Rg2+) 7... Rg2+ $1 ({ Try:} 7... Rh6 $2 8. f7 Rf6 $2 9. Re8 $18) 8. Kf3 Rg6 9. f7 Rf6+ 10. Kg3 Bd3 $1 11. Re8 Bf5 $1 12. Bb3 Bc2 $1 13. Ba2 Bb1 (13... b5 $2 14. f8=Q Rxf8 15. Rxf8 $18) 14. Be6 Bf5 $11 {positional draw.}) 5... b5 $1 (5... Rf2 $2 6. Rd7+ $1 (6. f7 $2 b5 $1) 6... Kc3 7. Rxb7 Rg2+ (7... Bd3 8. f7 $18) 8. Kf4 $1 Rf2+ 9. Ke5 { +-}) (5... Rg2+ $2 6. Kh4 $1 Rh2+ (6... b5 7. f7 Rf2 8. Kg3 $1 (8. Re8 $2 Bc4 $1 $11) 8... Rf6 9. Re8 $1 (9. Rd7+ $2 Kc3 10. Rd6 $6 Rxd6 11. f8=Q Rd3+ $1 12. Kf2 Kxb3 $11) 9... Bc4 $2 10. Bxc4 bxc4 11. f8=Q Rxf8 12. Rxf8 $18) 7. Kg4 $1 ( 7. Kg5 $2 b5 $1 8. f7 Rf2 9. Rd7+ Kc3 10. Rd6 Kxb3 11. Rf6 Rg2+ {=}) 7... Rf2 ( 7... Rg2+ 8. Kf3 $1 $18) 8. f7 Bd3 9. Re8 $18 (9. Kg3 $2 Rf6 $1 10. Re8 Bc2 11. Be6 Bf5 $11)) (5... Bb5 $2 6. f7 $18) 6. f7 Rf2 $1 (6... Rg2+ $2 7. Kf4 Rf2+ 8. Kg3 $1 Rf6 9. Re8 $18) 7. Rd7+ (7. Re8 Bc4 $11) (7. Bc2 Bd3 $11 (7... Bc4 $2 8. Re4+ Kd5 (8... Kc3 9. Rxc4+ bxc4 10. Bf5 $18) 9. Rf4 $18)) 7... Kc3 $1 (7... Ke3 $2 8. Rd6 $1 $18) 8. Rd6 $6 Kxb3 $1 (8... Rg2+ $2 9. Kf4 $1 Rf2+ 10. Ke3 Rf5 (10... Re2+ 11. Kf3 $18) 11. Be6 $18) 9. Rf6 $1 Rg2+ 10. Kf5 Rf2+ 11. Ke5 ( 11. Kg6 Rg2+ 12. Kh6 Rh2+ 13. Kg7 Rg2+ 14. Kh6 (14. Kf8 $4 Bc4 $19) 14... Rh2+ $11) 11... Re2+ 12. Kd6 (12. Kd4 Rd2+ 13. Ke3 Rd8 $11) 12... Rd2+ 13. Ke7 Re2+ 14. Kd6 Rd2+ 15. Kc7 Rc2+ 16. Kb6 (16. Kb8 Bh3 $1 17. Rf3+ (17. f8=Q Rc8+ 18. Qxc8 Bxc8 19. Kxc8 b4 $11) 17... Ka2 {(or Ka4)} (17... Kb2 $2 18. Rxh3 Rf2 19. Rh2 $1 Rxh2 20. f8=Q b4 21. Qxb4+ $18) 18. Rxh3 Rf2 19. Rh2 Rxh2 20. f8=Q b4 21. Qxb4 Rb2 $11) 16... Rc8 17. Rxf1 b4 $1 18. f8=Q Rxf8 19. Rxf8 Kc2 $11) ({ try:} 3. Rxb7 $2 Rh4+ $1 4. Kg5 (4. Kf5 Bd3+ 5. Kg5 Rh2) 4... Rh2 $1 5. Bb5 $1 (5. Rd7+ Ke5 6. Re7+ Kd6 7. Re4 Rf2 8. f7 Bh3 $11) 5... Rg2+ $1 (5... Bg2 $2 6. Rd7+ Kc5 7. f7 Rh8 8. Rd8 $1 Rxd8 9. Be8 $18) (5... Bh3 $2 6. Bd7 $1 Rg2+ (6... Bg2 7. f7 $18) 7. Kh6 $1 (7. Kh5 $2 Rf2 $1 $11) 7... Rf2 8. Kg7 $1 $18 {eg.} ( 8. Kg6 $2 Bg2 $11) 8... Bg2 9. Rb4+ $1 Kc3 (9... Ke5 10. f7 $18) 10. Rb6 $1 ( 10. Rb5 $2 Bf1 $1 11. Rf5 Rg2+ 12. Kf7 Bd3 $11) 10... Bd5 11. Be6 Rg2+ 12. Kh6 $1 Rh2+ 13. Kg5 Rg2+ 14. Kf5 Rf2+ 15. Ke5 Be4 16. Rb3+ $1 Kc2 17. Rg3 $18) 6. Kh6 Rf2 $1 (6... Rh2+ $2 7. Kg7 $1 Rg2+ 8. Kf7 Bxb5 9. Rxb5 $18) 7. Kg7 Bg2 $1 8. Rd7+ Kc5 $1 {eg.} 9. Bd3 Bd5 $11) ({try:} 3. Re4+ $2 Kc5 $1 (3... Kc3 $2 4. Re3+ Rxe3 5. f7 $1 $18 (5. Kxe3 $2 Bc4 $11)) 4. f7 (4. Bf7 $2 Rh4+ 5. Ke5 Rxe4+ 6. Kxe4 Be2 $11) 4... Rh8 5. Re5+ Kb4 $1 (5... Kd4 $2 6. Ba4 $1 Bc4 (6... Rf8 7. Bb3 $18) 7. Re8 $1 Rh4+ 8. Kg3 $1 (8. Kg5 $2 Rh5+ $3 9. Kxh5 Bxf7+ $11) 8... Bxf7 9. Rd8+ $1 Kc5 10. Kxh4 $18) (5... Kb6 $2 6. Bd7 $1 (6. Ba4 $2 Bc4 7. Re8 Rh4+ 8. Kg3 Bxf7 $11) 6... Bc4 7. Be6 $18) 6. Bd7 Bc4 7. Be6 (7. Re8 Rh4+ $1 8. Kg3 Bxf7 $11) 7... Rf8 8. Re4 b5 $11) ({try:} 3. Bd7 $2 Rh2 $1 ({or} 3... Rh4+ $1 4. Kg5 Rh8 5. Be6 Be2 $1 6. Rxb7 Rh5+ 7. Kg6 Rh2 $11) 4. f7 Rf2+ 5. Kg3 Rf6 6. Be6 Bd3 $1 7. Re8 Bf5 $1 8. Ba2 Bb1 $1 9. Bb3 Bc2 10. Be6 Bf5 $11) 3... Rh4+ $1 (3... Rh8 $2 4. Ba4 $1 Bc4 (4... Rf8 5. Bb3 Bb5 6. Ba2 $1 b6 7. Re5 $1 Bc6 8. Kf5 b5 9. Kf6 b4 10. Bb3 Ba4 11. Rd5+ Ke4 12. Bc4 $18) 5. Re8 $1 Rh4+ 6. Kg3 $1 Bxf7 7. Rd8+ $1 Kc5 8. Kxh4 $18) 4. Kf3 $3 ({thematic try:} 4. Kg5 $2 Rh8 5. Rd7+ (5. Ba4 $2 Bc4 $11) 5... Ke5 $1 (5... Ke3 $2 6. Rc7 $1 $18) 6. Rc7 Bd3 $1 (6... Kd6 $2 7. Rc3 $1 ({or} 7. Rc1 $1 $18) 7... Ke7 8. Kg6 Kf8 9. Bd7 $1 $18 ( 9. Ba4 $2 Bh3 $1 10. Bb3 Bd7 $1 11. Rc7 Rh3 $1 $11)) 7. Ba4 Kd4 $1 (7... Kd6 $2 8. Rd7+ Ke6 9. Rxb7 Be4 10. Bb3+ Kd6 11. Rb4 $1 $18) 8. Re7 (8. Rd7+ Kc3 9. Kf6 Rh6+ 10. Ke7 Rh7 11. Kd8 Rh8+ 12. Ke7 Rh7 13. Ke8 Bg6 $11) (8. Bb3 Be2 $11) 8... Bc4 9. Re8 Rh5+ $3 10. Kxh5 Bxf7+ 11. Kg5 Bxe8 $11) ({try:} 4. Kf5 $2 Bd3+ 5. Kg5 Rh8 6. Rd7+ Kc3 $1 ({or} 6... Ke3 $1 7. Rc7 Kd4) 7. Rc7+ (7. Kf6 Rh6+ 8. Ke7 Rh7 9. Kd8 Rh8 10. Rd6 Bc4 11. Rh6 Bxf7 12. Rxh8 Bxe8 13. Rxe8 b5 $11) 7... Kd4 $1 8. Kf6 Rh6+ 9. Ke7 Rh7 10. Rd7+ (10. Kd8 Rh8 11. Rd7+ Kc3 $11) 10... Kc3 $1 (10... Ke3 $2 11. Kd8 Rh8 12. Rd6 $1 Bc4 13. Rh6 $1 Rf8 14. Ke7 Bxf7 15. Kxf8 Bxe8 16. Kxe8 $18) 11. Kd8 Rh8 12. Rd6 Bc4 13. Rh6 Bxf7 14. Rxh8 Bxe8 15. Rxe8 b5 $1 $11) 4... Rh8 5. Ba4 $1 {(thr. 6.Re8)} (5. Bd7 $2 Rf8 $1 6. Be6 Bc4 $1 {(7.Re4+??)} 7. Bxc4 Kxc4 8. Rxb7 Kd5 $1 $11) 5... Rf8 (5... Bc4 $2 6. Re8 $1 Rh3+ 7. Kg4 (7. Kg2) 7... Bxf7 8. Rd8+ Kc4 9. Kxh3 $18) 6. Bb3 { (thr. 7.Re8!)} Bb5 (6... Bc4 $2 7. Re4+ $1 $18) 7. Kf4 $1 (7. Kg4 $2 b6 $1 8. Kf4 (8. Kf5 Bd3+ 9. Kf6 Bc4 $11) 8... Kc5 $11) 7... Kc3 {(= main line A)} ({ main line B:} 7... b6 $1 8. Re5 $1 {line B1:} (8. Kf5 $2 {eg.} Bd3+ 9. Kf6 Bc4 $11) (8. Be6 $2 Bc4 $1 9. Re8 Rxf7+ 10. Bxf7 Bxf7 $11) 8... Ba4 ({line B2:} 8... Bd7 9. Ba2 $1 {(thr. 10.Rd5+)} (9. Rd5+ $2 Kc3 10. Rxd7 $2 Kxb3 $11) (9. Bd5 $2 {eg.} Kc5 10. Kg5 Kd4 $1 11. Kf6 Bb5 $1 $11) 9... Bc6 (9... Kc3 10. Kg5 $18) 10. Kf5 (10. Re1 $2 Kc5 $11) 10... Bd7+ (10... b5 11. Kf6 b4 12. Re1 Ba4 13. Re7 $1 (13. Ke7 $2 Rxf7+ 14. Bxf7 Bc2 $11) 13... Bc2 14. Re8 $1 $18) 11. Kf6 $18) ({line B3:} 8... Bc6 9. Kf5 $1 (9. Ba2 $2 Ra8 10. Bb3 Rf8) 9... Kc3 ( 9... Ba4 10. Ba2 Bc6 11. Kf6 $18) 10. Ba2 $1 (10. Re3+ $2 Kd4 11. Re1 Bb5 $1 12. Re5 Bd3+ $1 13. Kf6 (13. Kf4 Bg6 $11) 13... Bc4 $11) 10... Kd4 (10... Kb2 11. Re2+) 11. Kf6 $18 (11. Bb3 $2 Ba4 $1 12. Ba2 (12. Re4+ Kc3 $11) 12... Bc6 { loss of time})) 9. Re4+ $1 (9. Bd5 $2 Kc5 $1 (9... Kd3 $2 10. Re3+ $1 (10. Ba2 $2 Kc3 11. Re7 Bb5 12. Be6 Bc4 $11) 10... Kd4 (10... Kd2 11. Ba2 Bc6 12. Re5 ( 12. Re7 Kd3 $1) 12... Kd3 13. Kf5 $18) 11. Ba2 $1 Bb5 (11... Bc6 12. Re5 b5 ( 12... Ra8 13. Bb3) 13. Kf5 b4 14. Kf6 Ba4 15. Re7 Bc2 16. Re8 Rxf7+ 17. Bxf7 $18) 12. Re5 Bc6 13. Kf5 b5 14. Kf6 b4 15. Bb3 Ba4 16. Rd5+ Kc3 17. Bxa4 $18) 10. Kf5 (10. Ba2+ Kb4 $1 11. Kg5 Bb3 $11) 10... Bb5 $1 11. Be6+ (11. Kg6 Kd4 12. Kf6 Bc4 13. Re8 Rxf7+ 14. Bxf7 Bxf7 15. Kxf7 b5 $1 $11) (11. Ba2+ Kb4 $11) 11... Kb4 12. Kf6 (12. Ba2 Bc4 $11) 12... Be8 13. Ke7 Bxf7 14. Kxf8 Bxe6 15. Rxe6 b5 $11) (9. Ba2 $2 Kc3 $1 10. Re7 Bb5 11. Be6 Bc4 12. Rc7 b5 $11) 9... Kc3 10. Bd5 $1 (10. Be6 $2 Be8 $1 $11) 10... Bb5 (10... b5 11. Re8 $18) (10... Bb3 $2 11. Re3+ Kd4 12. Bxb3 $18) 11. Kg5 $1 (11. Ke5 $2 Be8 $11) (11. Kf5 $2 Bd3 $1 $11) 11... Bc6 12. Rc4+ $18) 8. Be6 $1 (8. Bd5 $2 b6 $1 $11) 8... b6 { (thr. ...Bc4)} (8... Bc4 $2 9. Bxc4 Kxc4 10. Rxb7 $18) 9. Rc7+ $1 (9. Kf5 $2 Bc4 $1 10. Rc7 b5 $11) 9... Kb2 10. Rc8 (10. Ke5 $2 Be8 $11) 10... Bd7 $5 11. Rxf8 Bxe6 12. Ke5 $1 (12. Kg5 $2 b5 $11) 12... Bc4 13. Kf6 {wins. This is also a gamelike study with abounding in tactical turns , but that goes with too many tiring sidelines.} 1-0

[Event "3 rd HM Benko 80 JT - "] [Site ""] [Date "2008"] [Round ""] [White "Iuri Akobia (Georgia)"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "k3b3/3n2b1/8/8/6P1/4K3/4R3/8 w - - 0 1"] [PlyCount "25"] [EventDate "2008"] 1. Kf4 (1. Kf3 $5 Be5 2. Ke4 Bg6+ 3. Kd5 Bc3 $19) (1. Ke4 $5 Nf8 2. Kf4 Bd7 $19 ) (1. g5 $5 Bg6 2. Kf4 Nf8 $19) 1... Nf6 (1... Bg6 2. Re7 Bh6+ 3. g5 $11) 2. Kf5 $1 (2. Kg5 $5 Bb5 3. Ra2+ (3. Re7 Ne8 4. Kg6 Bd4 5. g5 Kb8 6. Re1 Bd3+ $19) 3... Kb7 4. Kg6 Ne8 5. Ra3 Bd4 6. g5 Kc6 7. Kh7 Kd6 8. g6 Ke7 $19) (2. g5 $5 Nd5+ $1 3. Kf5 (3. Ke4 Nc3+ $19) (3. Kg4 Bh5+ 4. Kxh5 Nf4+ $19) (3. Kf3 Bh5+ $19) 3... Bd7+ 4. Kg6 Nf4+ $19) 2... Bb5 $1 {leaves with attack on the rook} ({ A weak move} 2... Bc6 {and White draws immediately} 3. Kg6 Bh8 4. Re6 $11) 3. Ra2+ $3 {At first sight, White assist black king to come nearer to the center. However, all other tries White have no chance of a drawn game.} (3. Re7 $5 Ne8 4. Kg6 Bd4 5. g5 Bd3+ 6. Kh6 (6. Kf7 Nd6+ 7. Ke6 Nf5 8. Re8+ Kb7 9. Rf8 Ng7+ $19) 6... Nd6 7. Kh5 Kb8 8. g6 Kc8 $19) (3. Re5 $5 Bd3+ 4. Kf4 Kb8 $19) 3... Kb7 4. Rb2 $1 (4. Kg6 $5 Ne8 (4... Bh8 $5 5. Rh2 $11) 5. Ra3 (5. Rf2 Bc3 6. g5 Bd3+ $19) 5... Be5 6. g5 Kc6 7. Kh7 Kd6 8. g6 Ke7 $19) 4... Kb6 5. Kg6 (5. Rb3 $5 Nd5 6. g5 Kc6 7. Kg6 Be5 8. Kh6 Bf4 $19) 5... Bh8 6. Rh2 {And play branches: } (6. g5 $5 Ne4 7. Rb3 Kc6 8. Kh6 Be5 9. g6 Nd6 10. Rf3 (10. Ra3 Nf5+ $19) 10... Ne8 11. Rf7 Bc4 12. Re7 Nf6 $19) 6... Be8+ {main B} ({main A} 6... Bd3+ 7. Kf7 Bc4+ 8. Kg6 Bd3+ 9. Kf7 {positional draw}) 7. Kf5 Bd7+ 8. Kg6 Be8+ 9. Kf5 {positional draw, or} Bg7 10. Re2 Bc6 $1 (10... Bb5 11. Re6+ $11) (10... Kc5 {(Kc7)} 11. g5 $11) 11. Kg6 Bh8 12. Rh2 Be8+ 13. Kf5 {positional draw. There is complicated piece distribution and play with many tries and positional draws.} 1/2-1/2

[Event "Comm. Benko 80 JT - "] [Site ""] [Date "2008"] [Round ""] [White "Jozsef Csengeri, (Serbia)"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "1k3N2/8/8/P2N1pp1/K7/7p/8/8 w - - 0 1"] [PlyCount "21"] [EventDate "2008"] 1. Nd7+ $1 ({Thematic try} 1. Kb5 $2 h2 2. Nd7+ Ka7 $1 3. Ne5 h1=Q 4. Nc6+ Ka8 $1 5. Nb6+ Kb7 6. a6+ Kc7 7. Nb4 Qf1+ 8. Ka5 g4 $19) 1... Ka7 2. Ne5 $1 (2. Kb5 $2 h2 3. Ne5 h1=Q 4. Nc6+ Ka8 $19) 2... h2 3. Nc6+ {I.)} Ka6 ({II.)} 3... Kb7 4. Kb5 h1=Q 5. a6+ Kc8 $1 6. Nce7+ $1 (6. Nde7+ $2 Kc7 $19) (6. Nb6+ $2 Kc7 $19 ) 6... Kd7 7. a7 $1 (7. Nb6+ $2 Kxe7 $19) 7... Qb1+ (7... Qf1+ 8. Kb6 Qb1+ 9. Ka6 $11) 8. Ka6 (8. Ka5 $2 g4 9. Ka6 g3 10. a8=Q Qa2+ 11. Kb7 Qxa8+ 12. Kxa8 g2 $19) 8... Qa2+ 9. Kb7 (9. Kb6 $2 g4 10. Kb7 g3 11. a8=Q Qxa8+ 12. Kxa8 g2 $19) 9... Qb3+ 10. Ka6 $1 (10. Nb6+ $2 Kxe7 11. a8=Q Qf3+ 12. Kb8 Qxa8+ $19) 10... Qa4+ 11. Kb7 (11. Kb6 $2 g4 12. Kb7 Qb3+ 13. Ka6 g3 $19) 11... Qb5+ 12. Nb6+ $1 Kxe7 13. a8=Q $11 {e.g.} f4 14. Qh8 Ke6 15. Qc3 $11) 4. Ncb4+ $1 (4. Ndb4+ $2 Kb7 5. Kb5 h1=Q 6. a6+ Ka8 $19) 4... Kb7 5. a6+ $1 (5. Kb5 $2 h1=Q $19) 5... Kc8 $1 6. Nb6+ $1 Kb8 7. Nc6+ $1 (7. Nd7+ $2 Kc7 8. Nd5+ Kxd7 $19) 7... Kc7 8. a7 h1=Q 9. a8=Q Qa1+ (9... Qxc6+ 10. Qxc6+ Kxc6 11. Nc4 $1 Kd5 12. Kb3 $1 Kd4 13. Nd6 $1 f4 14. Kc2 $11) 10. Kb5 $1 (10. Kb4 $2 Qxa8 11. Nxa8+ Kxc6 $19) 10... Qxa8 11. Nxa8+ {draws.} 1/2-1/2

[Event "Comm. Benko 80 JT -"] [Site ""] [Date "2008"] [Round ""] [White "Gerhard Josten (Germany)"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "4k3/8/5P2/2KPN3/1Pp2qp1/4R3/8/5r2 w - - 0 1"] [PlyCount "39"] [EventDate "2007"] 1. f7+ Kd8 (1... Qxf7 2. Nxf7+ Kxf7 3. d6 c3 4. Rxc3 Rf3 5. Rc4 $18) (1... Kf8 2. Ng6+ Kxf7 3. Nxf4 $18) 2. Nc6+ Kc8 (2... Kd7 3. Re7+ Kc8 4. d6 $18 { main line}) 3. Re8+ Kb7 (3... Kd7 4. Rd8+ Kc7 5. d6+ $18) 4. Re7+ $1 Kc8 (4... Qc7 5. d6 $18) 5. d6 Qf5+ (5... Qf2+ 6. Kb5 Qf5+ 7. Ne5 $18 {main line}) 6. Kb6 $1 Qf2+ 7. Kb5 (7. Ka6 $2 Qa2+ $1 (7... Ra1+ $2 8. Kb5 $18) 8. Kb5 Rf5+ $1 $11) 7... Qf5+ 8. Ne5 (8. Ka6 $2 Ra1+ 9. Kb6 Qf2+ 10. Kb5 Qf5+ 11. Ne5 Rd1 { loss of time}) (8. Kb6 $2 Qf2+ 9. Ka6 Ra1+ 10. Kb5 Qf5+ 11. Ne5 Rd1 { loss of time}) 8... Rd1 (8... Qxe5+ 9. Kc6 (9. Rxe5 $2 Kd7 $11) 9... Qxd6+ 10. Kxd6 g3 11. Re8+ $18) 9. Rc7+ Kd8 (9... Kb8 10. f8=Q+ $18) 10. Rd7+ Kc8 (10... Qxd7+ 11. Nxd7 Rf1 12. f8=Q+ Rxf8 13. Nxf8 $18) 11. Ka6 Rxd6+ (11... Ra1+ 12. Kb6 Qf2+ 13. Kb5 $18) 12. Rxd6 c3 (12... g3 13. b5 $18) 13. b5 (13. Rc6+ $2 Kd8 14. Rc5 Qf6+ $11) 13... c2 14. Rc6+ Kd8 15. Rxc2 (15. b6 $2 Ke7 16. Rc7+ Kf8 17. b7 Qf1+ $11) 15... Ke7 (15... g3 16. b6 Ke7 17. Rc7+ Kf8 18. b7 $18) 16. Rc5 $1 (16. Rc7+ $2 Kf8 17. Nd7+ Kxf7 $11) 16... Kd6 (16... Kf8 17. b6 $18) 17. b6 $3 (17. Rc4 $2 g3 $11) 17... Kxc5 18. f8=Q+ Qxf8 19. Nd7+ Kc4 20. Nxf8 { wins.} 1-0

[Event "Comm. Benko 80 JT - "] [Site ""] [Date "2008"] [Round ""] [White "Alain Pallier (France)"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "2B3K1/8/4N3/p1b4k/5P2/5P2/4p2P/8 w - - 0 1"] [PlyCount "21"] [EventDate "2008"] 1. Kh7 (1. Nxc5 $2 e1=Q 2. Ne4 Qh4 3. Ng3+ Kg6 $19 (3... Kh6 $2 4. Nf5+ $18)) 1... Kh4 (1... e1=Q 2. Ng7+ Kh4 3. Bg4 $11 {see the main line}) (1... a4 $2 2. Ng7+ Kh4 3. Bg4 e1=Q 4. Nf5#) 2. Ng7 (2. Nxc5 $2 e1=Q 3. Ne4 Qe3 4. Be6 Qxf3 5. Ng3 Qxf4 6. Kg6 a4 7. Nf5+ Kh3 $19) 2... e1=Q 3. Bg4 (3. Kg6 $2 Qb1+ 4. Bf5 Qb6+ 5. Be6 Bf8 6. Nf5+ Kh3 $19) (3. Nf5+ $2 Kh3 $19) 3... Qe7 (3... Qb1+ 4. Nf5+ $11) 4. Kg6 (4. Kh6 $2 Qf6+ 5. Kh7 Qxf4 $19) (4. Kg8 $2 Qf8+ 5. Kh7 Qxf4 $19) 4... Qd6+ 5. Kf7 (5. Kh7 $2 Qxf4 $19) 5... Qd5+ (5... Qc7+ 6. Kg6 $11 (6. Kg8 $2 Qxf4 $19)) 6. Kg6 (6. Be6 $2 Qxf3 $19) 6... Qd6+ 7. Kf7 (7. Be6 $2 Qxf4 $19) 7... Qf8+ (7... Qxf4+ 8. Nf5+ $11) 8. Kg6 Qg8 9. Be6 Qf8 (9... Qh8 10. Bg4 $11) 10. Bg4 (10. Nf5+ $2 Kh3 $19) 10... Bd4 11. Nf5+ {draws.} 1/2-1/2

[Event "HM. Benko 80 JT - "] [Site ""] [Date "2008"] [Round ""] [White "Marcin Banaszek (Germany)"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "1k6/8/2K2P2/5Nq1/8/8/3R4/8 w - - 0 1"] [PlyCount "19"] [EventDate "2008"] {B) Group Miniatures} 1. f7 $1 { [Rook and Knight are left to capture, but the Queen prefers to chase the King]} (1. Rb2+ $2 Ka8 2. Ra2+ Kb8 3. Nd6 Qxf6 $11) (1. Rd8+ $2 Ka7 2. Rd7+ Ka6 3. f7 Qxf5 $11) 1... Qf6+ 2. Nd6 Qc3+ 3. Kd7 $1 (3. Kb6 $2 Qb3+ 4. Nb5 Qe6+ 5. Rd6 Qe7 6. Ka6 Qb7+ 7. Ka5 Qa8+ 8. Kb4 Qe4+ $11) 3... Qh3+ (3... Qxd2 4. f8=Q+ Ka7 5. Qf7 $18) 4. Kd8 $1 (4. Ke7 $2 Qe3+ 5. Kd7 Qa7+ 6. Kd8 Qb6+ 7. Ke8 Qe3+ { with perpetual check.}) 4... Qh8+ (4... Qh4+ 5. Ke8 $18 { see 6.Qe8 in main line.}) 5. Ke7 $1 (5. Ne8 $2 Qh4+ $11) 5... Qh4+ 6. Ke8 $1 Qa4+ 7. Kf8 $1 {[The King is in cover]} (7. Ke7 $2 Qh4+ {a repeat move.}) 7... Qa3 8. Rd5 $1 ({Now the thematic try} 8. Rd4 $2 {(A) is defeated by Qc5 (X)} Qc5 9. Ke7 (9. Rd3 Qe5 10. Ne8 Qh8+ 11. Ke7 Qe5+ 12. Kd8 Qg5+ $11) 9... Qe5+ 10. Kd7 Qxd4 $1 11. f8=Q+ Ka7 12. Qf7 Qc5 $1 13. Qa2+ Kb6 14. Qb3+ Ka6 $11 { White cannot win}) 8... Kc7 $1 (8... Qb4 $2 9. Rb5+ $18) 9. Rd4 $1 { (A) [Now the winner move!]} (9. Ke7 $2 Qe3+ 10. Kf6 Qh6+ $11) (9. Kg8 $2 Qg3+ 10. Kf8 Kc6 $1 $11) 9... Qc5 {(X) [The defender move from thematic try]} (9... Kc6 10. Kg7 Qg3+ 11. Kf6 $18 {wins.}) 10. Rc4 $1 {and the Queen is caught in a trap. A duel between white King and black Queen in a struggle to promote a pawn. Five precise moves of white King provide cover for him against the chase of black Queen. At the end the chasing Queen has been caught after the attempt that was successful in try.} 1-0

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