www.arves.org - Bron 110 MT 2019

Studies awarded for the Vladimir A. Bron 110 Memorial tournament 2019.

Bron, Vladimir 1909-1985

[Event "1st Prize V.Bron 110 MT 2019"] [Site ""] [Date "2019"] [Round ""] [White "M.Gromov, O.Pervakov, K.Sumbatjan"] [Black ""] [Result "1-0"] [Annotator "Sergey Osintsev"] [SetUp "1"] [FEN "5K1k/6p1/P2P2p1/6PP/7P/4p3/4p1n1/8 w - - 0 1"] [PlyCount "35"] [EventDate "2019"] 
 1. a7 $1 ({Продвижение другой пешки - ложный след:} 1. d7 $2 e1=Q 2. d8=Q Kh7 $1 3. hxg6+ Kxg6 4. Qe8+ Kf5 5. a7 (5. Qc8+ Kf4 $1 (5... Kg6) 6. a7 e2 7. a8=Q Qb4+ 8. Kg8 e1=Q 9. Qc7+ Qe5 10. Qxe5+ Kxe5 11. Qxg2 Qxh4 $11) 5... Qb4+ 6. Kg8 Qc4+ 7. Qf7+ Qxf7+ 8. Kxf7 e2 9. a8=Q e1=Q $11) 1... e1=Q 2. a8=Q Kh7 $1 ({Про~~ь из-под батареи! Быстро проигрывало} 2... Qf2+ 3. Ke7+ Kh7 4. d7 e2 5. hxg6+ Kxg6 6. Qe8+ Kh7 (6... Kf5 7. Qf7+) 7. Qh5+ $18) 3. Qf3 $1 {С угрозой 4. hg+ Kxg6 5.Qf7+} Nf4 $1 {На~~иная тонкуo^ контригру на пат} ({После} 3... Qf2 4. Qf7 $1 Nxh4 5. d7 gxh5 6. d8=Q Ng6+ {~~ерным ~~уток не хватает до мата со связкой:} 7. Ke8 $18) ({Не спасает и} 3... Qxh4 4. Qf7 $1 Qf4 5. hxg6+ Kh8 6. d7 Qd6+ 7. Qe7 $18) 4. Qxf4 e2 $1 ({На} 4... Qf2 {выигрывает знакомое} 5. Qf7 $1 $18) 5. hxg6+ Kh8 (5... Kxg6 6. Qf7+ $18) 6. Qf6 $3 ({А вот теперь} 6. Qf7 $2 {упускает победу:} Qf1 $1 7. d7 e1=Q 8. d8=Q Qb4+ $1 9. Ke8 Qfb5+ $1 10. Qfd7 Q5c4 $11 {, и два ~~ерных ферзя успешно противостоят двум белым визави}) 6... Qf2 $1 ({Если} 6... Qf1 {, то} 7. d7 e1=Q 8. d8=Q $18 {, и поле f7 - решаo^щий глоток воздуха для белого короля}) (6... gxf6) 7. Qxf2 e1=Q 8. Qa7 $3 {Еще один впе~~атляo^щий выпад белого ферзя} ({Повтор} 8. Qf6 $2 {встре~~ало то~~ное} Qe5 $1 9. d7 (9. Qd8 Qxd6+ $1 $11) 9... Qb8+ $1 10. Ke7 gxf6 11. d8=Q+ Qxd8+ 12. Kxd8 fxg5 $11) ({А} 8. Qf7 Qe8+ $11 {приводило к немедленному пату}) 8... Qf2+ $1 9. Qf7 $1 Qf4 $1 {Используя связку, ~~ерные продолжаo^т надеяться на пат} 10. d7 Qd6+ 11. Qe7 Qxd7 $1 12. Qe8 $1 Qc7 13. h5 Qa7 14. h6 $1 {, и дуэль ферзей закан~~ивается в пользу белых:} Qb7 ({Или} 14... Qc7 15. Qa8 $1 gxh6 (15... Qd7 16. Qb8 $18) 16. Qa1+ Qg7+ 17. Qxg7#) 15. Qd8 $1 (15. Qc6 Qb8+ 16. Qe8 Qb7) 15... Qa7 16. Qc8 $1 (16. Ke8 Qb7 17. Kf8 Qa7) 16... gxh6 17. Qc3+ Qg7+ 18. Qxg7# 1-0

[Event "2nd Prize V.Bron 110 MT 2019"] [Site ""] [Date "2019"] [Round ""] [White "Minski,Martin & Slumstrup Nielsen,Steffen"] [Black ""] [Result "1-0"] [Annotator "Sergey Osintsev"] [SetUp "1"] [FEN "Q5R1/B7/8/1q2n3/1p2p3/1Pk5/5P1p/K7 w - - 0 1"] [PlyCount "19"] [EventDate "2019"] 
 1. Rg3+ (1. Rc8+ $4 Kxb3 $19) 1... e3 $1 (1... Kd2 2. Be3+ Kc2 3. Qa2+ $18) ( 1... Nf3 2. Qh8+ Kxb3 3. Qb2+ Kc4 (3... Ka4 4. Qa2#) 4. Qc2+ Kd5 5. Rh3 Qa5+ 6. Qa2+ Qxa2+ 7. Kxa2 $18) (1... Nd3 2. Qxe4 Kc2 3. Qe2+ $18) 2. Rxe3+ Kd2 (2... Kc2 3. Qe4+ Nd3 4. Re2+ $18) 3. Bc5 $1 (3. Qh1 $2 Qa6+ 4. Kb2 Nd3+ 5. Rxd3+ (5. Kb1 Qg6 6. Rg3 Qf5 $1 $11) 5... Qxd3 6. Be3+ Ke2 7. Qxh2 Qc3+ 8. Ka2 Qc2+ 9. Ka1 Qc3+ 10. Ka2 Qc2+ $11) 3... Qf1+ (3... Qxc5 4. Qd8+ {/Qa2++-}) 4. Ka2 Nc6 $1 {play for stalemate} 5. Qxc6 Qb1+ $1 6. Kxb1 h1=Q+ 7. Re1 $3 (7. Qxh1 $2 { stalemate}) (7. Ka2 $2 Qxc6 8. Bxb4+ Kd1 9. Rd3+ Ke2 $11) (7. Kb2 $2 Qc1+ $11) 7... Qxc6 (7... Qxe1+ 8. Ka2 $18) 8. Bxb4+ Kd3 9. Bc3 $3 Qb5 (9... Kxc3 10. Rc1+ $18) (9... Qxc3 10. Re3+ $18) 10. Re3# {model mate} (10. Kb2 $2 Qxb3+ $1 11. Kxb3 {stalemate}) 1-0

[Event "3-4th Prize V.Bron 110 MT 2019"] [Site ""] [Date "2019"] [Round ""] [White "A.Žukov & V.Lebedev"] [Black ""] [Result "1-0"] [Annotator "Sergey Osintsev"] [SetUp "1"] [FEN "8/8/1p2Bp2/p2K4/2R5/1kP5/pP6/8 w - - 0 1"] [PlyCount "23"] [EventDate "2019"] 
 1. Ra4 $1 Kxa4 2. Kc4 b5+ (2... a1=Q 3. Bd7+ b5+ 4. Bxb5#) 3. Kd3 a1=N $1 (3... a1=Q 4. Kc2 Qa3 5. bxa3 Kxa3 6. Bd7 b4 7. c4 $18) 4. Bd5 $1 (4. Bf7 $6 f5 $1 ( 4... Nb3 $1 5. Kc2 Nc5 6. Bd5 f5 $11) 5. Bd5 f4 $11) (4. Kd2 $6 b4 $11) (4. Bg8 $6 f5 $1 (4... Nb3 $2 5. Kc2 Nc5 6. Bf7 $1 (6. Bd5 $2 f5 $11) 6... f5 7. Bd5 $1 $18) 5. Bf7 $5 f4 $1 6. Bd5 f3 $1 7. Bxf3 Kb3 $11) 4... f5 $1 (4... Nb3 5. Kc2 Nc5 6. Bf7 {(f3)} f5 7. Bd5 {zz BM} f4 8. Bf3) (4... b4 5. Kc4 $1 bxc3 6. Bc6#) 5. Kd2 $1 Nb3+ {A)} (5... f4 {B)} 6. Kc1 b4 7. Kb1 (7. Bc6+ $6 Kb3 8. Bd5+ Ka4 {loss of time}) 7... f3 $1 (7... Nb3 8. Bc6#) 8. Ka2 $1 (8. Kxa1 $6 f2 9. Bc4 b3 10. Kb1 f1=Q+ 11. Bxf1 {stalemate}) (8. Bc6+ $6 Kb3 9. Bd5+ Ka4 {loss of time}) 8... Kb5 (8... Nc2 9. Bc6#) 9. Kxa1 f2 10. Bg2 Kc4 11. Bf1+ $1 Kb3 12. c4 $18) 6. Kd1 $1 (6. Kd3 $6 Na1 {loss of time}) (6. Kc2 $6 Nc5 $1 {zz WM} 7. Bf7 f4 8. Bd5 {(h5)} f3 9. Bxf3 Na6 $1 10. Bd1 (10. Bc6 Nb4+ $1 11. cxb4 Kxb4 $11) 10... b4 11. c4 b3+ 12. Kc3 Nc5 13. Bf3 {position X without pawns f4} Ne4+ $1 14. Bxe4 {stalemate}) 6... Nc5 7. Kc2 $1 {zz BM} f4 (7... Na6 8. Bb3#) (7... b4 8. Bc6#) 8. Bf3 Na6 (8... Ne6 9. Kb1 b4 10. Bc6+ Kb3 11. Bd5+ {and 12.B:e6}) 9. Bd1 $1 b4 (9... Nb4+ 10. Kb1+ Nc2 11. Bxc2#) (9... f3 10. Kb1#) 10. c4 b3+ 11. Kc3 Nc5 (11... Nb4 12. Bxb3#) 12. Bf3 $18 {position X with pawns f4} (12. Bg4 $6 Ne4+ $11) (12. Bf3 Ne4+ 13. Bxe4 f3 14. Bc6#) 1-0

[Event "3-4 hm. V.Bron 110 MT 2019 "] [Site ""] [Date "2019"] [Round ""] [White "L.M.Gonzalez"] [Black ""] [Result "1/2-1/2"] [Annotator "Sergey Osintsev"] [SetUp "1"] [FEN "8/3p3p/4p1p1/4P3/3k4/4p1P1/p3P1P1/4K2R w K - 0 1"] [PlyCount "24"] [EventDate "2019"] 
 1. Rh4+ $1 (1. O-O $2 Kc3 $1 2. g4 g5 3. Kh2 Kb2 4. Kg3 a1=Q 5. Rxa1 Kxa1 6. Kf3 Kb2 7. Kxe3 Kc3 $19) 1... Kc3 2. Ra4 Kb2 3. Kd1 $1 (3. Rb4+ $2 Ka3 $1 $19) 3... a1=Q+ 4. Rxa1 Kxa1 5. Kc1 $1 {zz} (5. Kc2 $2 g5 $1 (5... Ka2) 6. Kd3 Kb2 7. Kxe3 Kc3 $19) 5... h5 $1 (5... Ka2 6. Kc2 g5 (6... h5 7. Kd3 Kb3 8. Kxe3 Kc3 9. Kf4 $1 Kd2 10. Kg5 $11) 7. g4 $1 Ka3 8. Kc3 Ka4 9. Kc4 h6 10. g3 $1 Ka3 11. Kc3 $1 Ka2 12. Kc2 $1 Ka1 13. Kc1 $1 $11) 6. Kc2 $1 ({Thematic try:} 6. g4 $2 hxg4 $1 7. g3 g5 8. Kc2 Ka2 9. Kd3 Kb3 10. Kxe3 Kc3 $1 $19 {zz}) 6... g5 7. g4 $3 (7. Kc1 $2 Ka2 (7... g4 8. Kc2 Ka2) 8. Kc2 g4 9. Kd3 Kb3 10. Kxe3 Kc3 11. Kf4 Kd4 12. Kg5 Kxe5 13. Kxh5 Kf5 $1 $19) (7. Kd3 $2 Kb2 $1 8. Kxe3 Kc3 $1 9. g4 h4 $1 $19) 7... hxg4 (7... h4 8. Kc1 $1 {zz} Ka2 9. Kc2 Ka3 10. Kc3 Ka4 11. Kc4 Ka3 12. Kc3 $1 $11 {positional draw}) 8. Kd3 (8. Kc1 $2 g3 9. Kc2 Ka2 $1 10. Kd3 Kb3 11. Kxe3 Kc3 12. Kf3 Kd4 $1 13. Kxg3 Kxe5 14. Kg4 Kf6 $19) 8... Kb2 9. Kxe3 Kc3 $1 (9... Kc2 10. Kf2 (10. Kd4 Kd2 11. Kc5 Kxe2 12. Kd6 Kf2 13. Kxd7 Kxg2 14. Kxe6 $11) 10... Kd2 11. Kg3 Kxe2 12. Kxg4 Ke3 13. Kxg5 $11) 10. g3 $1 {zz} Kc4 (10... Kc2 11. Kd4 Kd2 12. Kc5 Kxe2 13. Kd6 Kf3 14. Kxd7 Kxg3 15. Kxe6 $11) 11. Ke4 $1 {zz} Kc5 12. e3 $1 {zz} Kc4 {stalemate} (12... d6 13. exd6 Kxd6 14. Kd4 $1 $11) 1/2-1/2

[Event "3-4 hm. V.Bron 110 MT 2019 "] [Site ""] [Date "2019"] [Round ""] [White "A.Rusz"] [Black ""] [Result "1-0"] [Annotator "Sergey Osintsev"] [SetUp "1"] [FEN "R2B4/4P3/5Q2/pB6/5n2/6q1/1K1k1r2/n7 w - - 0 1"] [PlyCount "17"] [EventDate "2019"] 
 1. Bxa5+ (1. e8=Q $2 Qb3+ $1 (1... Kd1+ $2 2. Be2+ $1 $18) 2. Kxa1 Qd1+ 3. Kb2 (3. Ka2 $4 Kc1+ $19) 3... Qc2+ 4. Ka1 Qd1+ $1 {perpetual check}) 1... Kd1+ ( 1... Ke3+ 2. Ka3 Nc2+ 3. Ka4 $18) 2. Bd2 $1 {unguarded guard sacrifice} (2. Kxa1 $4 {is wrong because the a8 rook doesn't protect the a3 square.} Qa3+ $19) 2... Nd3+ $1 (2... Rxd2+ 3. Kxa1 {After the bishop sacrifice, the a3 square is protected.} Qa3+ 4. Rxa3 $18) 3. Bxd3 Rxd2+ $1 (3... Rxf6 4. e8=Q $18) 4. Kb1 $3 (4. Kxa1 $2 Qxd3 $1 {mutual zug zwang. Paradoxically, it will be bad for white that the pawn is going to be promoted!} 5. e8=Q (5. Ra2 Rxa2+ 6. Kxa2 Qd5+ 7. Ka3 Qa5+ 8. Kb3 Qb5+ 9. Kc3 Qc5+ 10. Kd3 Qc2+ 11. Ke3 Qc3+ $1 12. Qxc3 {stalemate}) 5... Qc3+ $1 6. Qxc3 Ra2+ $1 7. Kb1 (7. Rxa2 {stalemate}) (7. Kxa2 {stalemate}) 7... Rb2+ $1 8. Ka1 Ra2+ {perpetual check/stalemate}) 4... Qxd3+ 5. Kxa1 $1 {mutual zugzwang} Rc2 (5... Ra2+ 6. Kxa2 $1 (6. Rxa2 $2 Qc3+ $1 7. Rb2 (7. Qxc3 {stalemate}) 7... Qxf6 8. e8=Q Qa6+ 9. Kb1 Qd3+ 10. Ka2 Qa6+ 11. Kb3 Qb6+ 12. Ka3 Qe3+ $1 13. Qxe3 {stalemate}) 6... Qd5+ 7. Kb2 $18) 6. Rd8 Rc1+ 7. Ka2 Rc2+ 8. Qb2 $1 Rxb2+ 9. Kxb2 $18 1-0

[Event "sp. hm. V.Bron 110 MT 2019 "] [Site ""] [Date "2019"] [Round ""] [White "D.Blundell"] [Black ""] [Result "1-0"] [Annotator "Sergey Osintsev"] [SetUp "1"] [FEN "3k4/n7/P2P3p/8/4P2p/4K3/4p2P/8 w - - 0 1"] [PlyCount "25"] [EventDate "2019"] 
 1. Kf2 $3 (1. Kxe2 $2 Nc6 $1 2. e5 (2. Ke3 Kd7 3. Kf4 Kxd6) 2... Kc8 $1 3. e6 Nd4+ $11) (1. Kd2 $2 Nc6 $1 2. e5 Nxe5 3. a7 Nc4+ 4. Kxe2 Nb6 $11) 1... Nc6 (1... Kc8 2. e5 $1 (2. Kxe2 $2 Nc6 $1 3. Kf3 Kd7 4. Kf4 Kxd6 $11) 2... h3 ( 2... Kd7 3. Kxe2 $18) (2... Nc6 3. e6 $18) (2... Nb5 3. Kxe2 $18) 3. Ke1 $1 (3. Kxe2 $2 Nc6 $1 4. e6 Nd4+ $11) (3. e6 $2 Nb5 $1 4. d7+ Kd8 (4... Kc7) 5. Kxe2 Nd4+ 6. Kd3 Nxe6 7. a7 Nc7 $11) 3... h5 4. Kf2 (4. Kd2) 4... h4 5. Ke1 Kb8 6. e6 Nb5 7. a7+ $1 Kxa7 8. d7 $18) (1... Kd7 2. e5 Nc6) 2. e5 Kd7 3. Ke1 $1 (3. Kxe2 $2 Kc8 4. e6 Nd4+ $11) (3. h3 $2 Ke6 4. Kxe2 Kd7 5. Kf2 Ke6 6. Ke3 Nxe5 $1 7. a7 Nc4+ 8. Kd4 Nb6 9. Kc5 Na8 10. Kc6 h5 $1 11. Kb7 Kxd6 12. Kxa8 Kc7 $11) 3... h3 (3... Kc8 4. e6 $18) (3... Ke6 $2 4. Kxe2 $18) (3... Na7 4. Kxe2 $18) 4. Kf2 $1 (4. Kd2 $2 Nxe5 5. a7 Nc4+ 6. Kxe2 Nb6 $11) 4... h5 (4... Ke6 5. Kxe2 h5 6. Kf2 $1 (6. Ke3 $2 Nxe5 $1 7. a7 Nc4+ 8. Kd4 Nb6 9. Kc5 Na8 10. Kc6 h4 $1 $11) 6... h4 7. Ke3 $1 $18) 5. Ke1 $1 h4 (5... Ke6 6. Kxe2 $18) 6. Kf2 Ke6 7. Kxe2 $1 Kd7 8. Kf2 $3 (8. Ke3 $2 Nxe5 9. a7 Nc4+ 10. Kd4 Nb6 11. Kc5 Na8 $11) ( 8. Kd1 $6 Ke6 9. Kc1 Kd7 10. Kb1 Ke6 11. Kb2 Nxe5 $1 12. a7 Nc4+ $11) 8... Ke6 9. Ke3 Nxe5 10. a7 Nc4+ 11. Kd4 Nb6 12. Kc5 Na8 13. Kc6 $18 1-0

[Event "sp. com. V.Bron 110 MT 2019"] [Site ""] [Date "2019"] [Round ""] [White "M.Hlinka & L.Kekely"] [Black ""] [Result "1/2-1/2"] [Annotator "Sergey Osintsev"] [SetUp "1"] [FEN "3b2Bk/q2P4/6PK/2P5/2N4N/2r5/3p4/3r1b1R w - - 0 1"] [PlyCount "24"] [EventDate "2019"] 
 1. Bf7 $1 {with mate threat} (1. Be6 $2 Bf6 $19) (1. Bd5 $2 Qxd7 $19) 1... Bg5+ (1... Bf6 2. d8=Q+ Bxd8 3. g7#) 2. Kxg5 Rg3+ $1 3. Kf6 (3. Kh6 $2 Qxd7 $19) 3... Qa6+ 4. c6 $1 {forecasting} (4. Be6 $2 Qxe6+ 5. Kxe6 Re1+ 6. Ne5 d1=Q 7. Ng2+ (7. Nf5+ Rh3 8. Rxh3+ Bxh3 9. g7+ Kg8 10. d8=Q+ Qxd8 11. c6 $19) 7... Kg7 8. Nxe1 Bh3+ 9. Rxh3 Rxh3 10. N1f3 Rh8 $19) 4... Qxc6+ 5. Be6 Qxe6+ 6. Kxe6 Re1+ (6... Bxc4+ 7. Kf6 Rd3 8. Rxd1 $11) 7. Ne5 d1=Q {phoenix} (7... Bc4+ 8. Ke7 d1=Q 9. Rxe1 Qxe1 10. d8=Q+ $11) 8. Nf5+ Rh3 (8... Bh3 9. Rxe1 Qd2 10. d8=Q+ (10. Ke7 $11) 10... Qxd8 11. Nf7+ {fork} Kg8 12. Nxd8 $11) 9. Rxh3+ Bxh3 10. g7+ Kh7 (10... Kg8 11. d8=Q+ Qxd8 {ideal double pin stalemate}) 11. g8=Q+ $1 (11. d8=Q $2 Qxd8 (11... Bxf5+) 12. g8=Q+ Qxg8+ $19) 11... Kxg8 12. d8=Q+ $1 (12. d8=R+ $2 Kh7 13. Rxd1 Rxd1 $19) 12... Qxd8 {ideal double pin stalemate. Mate threat. Forecasting. Phoenix of black queen. Fork. All pieces in final position moved.} 1/2-1/2

[Event "sp. com. V.Bron 110 MT 2019"] [Site ""] [Date "2019"] [Round ""] [White "A.Sochnev"] [Black ""] [Result "1/2-1/2"] [Annotator "Sergey Osintsev"] [SetUp "1"] [FEN "6R1/K7/8/8/k7/Pp5p/2p5/q2n3Q w - - 0 1"] [PlyCount "35"] [EventDate "2019"] 
 1. Ra8 $1 ({Logical try N 1:} 1. Kb7 $2 Kxa3 2. Ra8+ Kb2 3. Rxa1 Kxa1 4. Qxh3 b2 5. Qa3+ Kb1 6. Qd3 Kc1 7. Qa3 Nc3 $1 {ZZ} (7... Nf2 $2 8. Qe3+ Kb1 9. Qxf2 c1=Q 10. Qf5+ Qc2 11. Qf1+ Ka2 12. Qa6+ Kb3 13. Qb6+ $1 Ka3 14. Qd6+ $1 Ka2 15. Qa6+ Kb1 16. Qf1+ $11) 8. Ka8 (8. Kb6 Kb1 9. Qxc3 c1=Q 10. Qd3+ Qc2 11. Qf1+ Ka2 12. Qa6+ Kb3 $1 13. Qb5+ Ka3 14. Qa6+ Qa4 $1 $19) 8... Nd5 $1 9. Kb8 $1 Kb1 $1 10. Qd3 Nb4 11. Qe4 Ka1 $1 12. Qa8+ Na2 $19) 1... Kxa3 $1 2. Kb8+ $1 ({ Logical try N 2:} 2. Kb6+ $2 Kb2 3. Rxa1 Kxa1 4. Qxh3 b2 5. Qa3+ Kb1 6. Qd3 Kc1 7. Qa3 Nf2 $1 (7... Nc3 $2 8. Kb7 $11 {ZZ}) 8. Qe3+ Kb1 9. Qxf2 c1=Q 10. Qf5+ Qc2 11. Qf1+ Ka2 12. Qa6+ Kb3 $1 13. Qb5+ Ka3 14. Qa6+ Qa4 $1 $19) (2. Kb7+ $2 Kb2 3. Rxa1 Kxa1 {and etc (Logical try N 1).}) 2... Kb2 3. Rxa1 Kxa1 4. Qxh3 b2 5. Qa3+ Kb1 6. Qd3 Kc1 7. Qa3 Nc3 $1 (7... Nf2 $2 8. Qe3+ Kb1 9. Qxf2 c1=Q 10. Qf5+ Qc2 11. Qf1+ Ka2 12. Qa6+ Kb3 13. Qb6+ {(b7)} (13. Qb7+ Ka3 14. Qe7+ Ka2 15. Qa7+ $11) 13... Ka3 14. Qd6+ $1 Ka2 15. Qa6+ Kb1 16. Qf1+ $11) 8. Kb7 $1 { ZZ} Nb5 (8... Na2 9. Qe3+ $1 (9. Kb8 $2 Kb1 10. Qd3 Nb4 11. Qe4 Ka1 12. Qa8+ Na2 $19) 9... Kb1 10. Qe4 $1 Nb4 11. Qxb4 c1=Q 12. Qe4+ Qc2 13. Qe1+ Ka2 14. Qa5+ Kb3 15. Qb6+ $1 Ka3 16. Qd6+ $1 Ka2 17. Qa6+ Kb1 18. Qf1+ $11) (8... Nd5 9. Kc6 $1 Kb1 10. Kxd5 c1=Q 11. Qd3+ Qc2 12. Qf1+ Ka2 13. Qa6+ Kb3 14. Qb7+ $11 ) (8... Kb1 9. Qxc3 c1=Q 10. Qd3+) 9. Qe3+ Kb1 10. Qd3 Na3 11. Qxa3 $1 c1=Q 12. Qd3+ Qc2 13. Qf1+ Ka2 14. Qa6+ Kb3 15. Qb6+ $1 (15. Qb5+ $2 Ka3 16. Qa6+ Qa4 $19) 15... Ka3 16. Qd6+ $1 (16. Qa6+ $2 Qa4 $19) 16... Ka2 17. Qa6+ Kb1 18. Qf1+ $11 1/2-1/2