domingo, 27 de dezembro de 2015

Extraído da página chessbase - como nossos dedicados se comportam



brancas jogam e empatam
mate em dois





Games
[Event "Shakhmaty v SSSR#599"] [Site "?"] [Date "1932.08.30"] [Round "?"] [White "Grigoriev, Nikolai"] [Black "White to play and win"] [Result "1-0"] [Annotator "Keymer,Vincent"] [SetUp "1"] [FEN "8/2p5/6K1/8/8/5k2/P7/8 w - - 0 1"] [PlyCount "21"] [EventDate "1932"] 1. Kf5 $1 (1. Kf6 $2 Ke4 2. Ke6 Kd4 {ends in a draw.}) 1... Ke3 (1... c5 2. Ke5 Ke3 3. Kd5 Kd3 4. Kxc5 {wins for White.}) 2. Ke5 c6 {The only serious attempt to save the game for Black.} (2... c5 3. Kd5 Kd3 4. Kxc5 Kc3 5. a4 $18) (2... Kd3 3. Kd5 Kc3 (3... c6+ 4. Kc5 $1 Kc3 5. a4) 4. Kc5 {and Black quickly loses.} ) 3. a4 ({Not} 3. Kd6 $2 Kd4 4. Kxc6 Kc4 {with a draw.}) 3... Kd3 4. a5 c5 5. a6 c4 6. a7 c3 7. a8=Q c2 {This endgame appears to be a draw, but there is a beautiful idea which wins for White.} 8. Qd5+ $1 {The only winning move for White!} (8. Qe4+ $2 Kd2 9. Qd4+ Ke2 10. Qc3 (10. Qb2 Kd1 11. Qb3 Kd2 12. Qa2 Kc3) (10. Qe4+ Kd2 11. Qd5+ Ke1 $1) 10... Kd1 11. Qd3+ Kc1 12. Kd4 Kb2 13. Qe2 (13. Qd2 Ka1 $1) 13... Ka1 $1 (13... Kb1 $2 14. Kc3 c1=Q+ 15. Kb3) 14. Kc3 c1=Q+ 15. Kb3 Qb1+) (8. Qa1 $2 Kd2 9. Qa2 Kc3 $1 (9... Kd1 $2 10. Kd4 c1=Q 11. Kd3)) (8. Qa3+ $2 Kd2 9. Qa2 Kc3 $1) 8... Ke3 ({Or} 8... Ke2 9. Qa2 $1 Kd1 10. Kd4 c1=Q 11. Kd3 {with mate in three}) (8... Kc3 9. Qd4+ Kb3 10. Qa1 {wins for White.}) 9. Qg2 $3 {The main point I had to find.} Kd3 (9... c1=Q 10. Qg5+) 10. Qg5 $1 Kc3 11. Qc1 1-0

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