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Here, the key appears


8 7 6 5 4 3 2 1


-+-+-mk-+ zpptr-+ptRp -wq-+-zP-+ +-+pzP-+- -+-zP-+-+ zP-+Q+-+- -zP-+-+PzP +-tr-+RmK-


a b c d e f g h Triangulating to e7.


34. ... Kd7 35. Qe7+ 1-0 35. ... Kc8 (35. ... Kc6 36. Rxc1+) 36. Qe8#


Solution #4 Aidyn Guseinov - Ruslan Kadyrov (B66) 1984 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 h6 9. Be3 Nxd4 10. Qxd4 Qc7 11. Rg1 b5 12. f3 Bb7 13. g4 d5 14. e5 Nd7 15. f4 Rc8 16. Qd2 Bb4 17. Bd4 Nc5 18. Qe2 Ba5 19. a3 b4 20. axb4 Bxb4 21. Kb1 Rb8 22. Qe3 Qa5 23. Na2 Ne4 24. Nxb4 Qxb4 25. Ba7 Rc8 26. Rd4 Qe7 27. Ra4 0-0 28. f5 Qd7 29. Ra3 Rfd8 30. Bd4 Rc6 31. g5 hxg5 32. f6 gxf6 33. exf6 e5


8 7 6


5 4 3 2 1


-+-tr-+k+ +l+q+p+- p+r+-zP-+ +-+pzp-zp- -+-vLn+-+ tR-+-wQ-+- -zPP+-+-zP +K+-+LtR-


a b c d e f g h White’s pawn is on f6,


the rook will be able to reach g8 after an obvious sacrifice on g5, the queen will have access to the g- file at g1, and Black’s queen on d7 blocks the king’s escape. 34. Rxg5+ Kf8 It’s very easy after 34. ...


Nxg5 35. Qxg5+ Kf8 36. Qg7+ Ke8 37. Qg8#. 35. Rg8+ There’s our sacrifice.


35. ... Kxg8 36. Qg1+ 1-0 36. ... Kf8 Otherwise Qg7+ is mate. 37. Qg7+ Ke8 38. Qg8#.


Solution #5 Sigurbjorn Bjornsson (2335) - Hjorvar Stein Gretarsson (2087) (B66) Reykjavik, 2006 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 h6 9. Be3 Qc7 10. f3 Rb8 11. Kb1 Be7 12. g4 Ne5 13. h4 b5 14. Bd3 b4 15. Nce2 d5 16. g5 Ng8 17. exd5 exd5 18. Bf4 Bd6 19. Qe3 Kf8 20. Bxe5 Bxe5 21. f4 Bd6 22. f5 hxg5 23. hxg5 Rxh1 24. Rxh1 Bd7 25. Qf3 Qb7 26. Rh8 Be5 27. f6 gxf6 28. gxf6 Qb6


The critical feature is


the black king’s possible escape to d7. 29. Rg8+ Kxg8 30. Qg3+ Kf8 31. Qg7+ Ke8 32. Qg8+ Kd7 There it is.


33. Qxf7+ Here, the free pawn is


on f7. 33. ... Kd8 Surely not 33. ... Kc6


34. Rxc1+. 34. Qf8+


8 7 6


5 4 3 2 1


-tr-+-mkntR +-+l+p+- pwq-+-zP-+ +-+pvl-+- -zp-sN-+-+ +-+L+Q+- PzPP+N+-+ +K+-+-+-


a b c d e f g h


to be that the queen has access to the g-file below g4, so that Black can sacrifice back the bishop. 29. Rxg8+ However, the sacrifice


begins as an Exchange sacrifice. White already has a piece for the rook. 29. ... Kxg8 30. Qg2+ Bg4 31. Qxg4+ Kf8 Obviously not allowing


Qg7#.


32. Qg7+ Ke8 33. Qg8+ Kd7 The king escapes to d7, and there are no unanchored pieces


on the queenside. 34. Qxf7+ ... and Black’s king is in a mating net.


34. ... Kc8 34. ... Kd8 35. Qe7+ Kc8 36. Bf5+ Qe6 37. Bxe6#. And not 34. ... Kd6 when White has a pretty mate in one!


35. Qe7#. 35. Bf5+ Qe6 36. Bxe6+ Kd8 37. Nc6# 1-0


Solution #6 Eduard Gufeld (2545) - Joaquin Carlos Diaz (2385) (B66) Vrnjacka Banja, 1976 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 h6 9. Be3 Bd7 10. f4 b5 11. Bd3 Nxd4 12. Bxd4 Bc6 13. Rhe1 Be7 14. Kb1 b4 15. Bxf6 Bxf6 16. Nd5 Bxd5 17. exd5 e5 18. Qxb4 0-0 19. Qe4 g6 20. f5 g5 21. h4 gxh4 22. Rh1 Re8 23. g3 Rb8 24. c3 Qa5 25. Rc1 Rec8 26. Ka1 Qb6 27. Rc2 a5 28. Rg2 a4 29. gxh4+ Kf8 30. Qxa4 e4 31. Bc4 Qe3 32. Qa6 Rd8 33. Bb3 Bxh4 34. Qe2 Qa7 35. Rxh4 Rxb3 36. f6 Ra8


8 7 6


5 4 3 2 1


r+-+-mk-+ wq-+-+p+- -+-zp-zP-zp +-+P+-+- -+-+p+-tR +rzP-+-+- PzP-+Q+R+ mK-+-+-+-


a b c d e f g h Here’s a good test of


your ability to calculate long, forced sequences. The pawn on f6, the rook can reach g8, the queen has access to the g-file, but Black’s king can es- cape via e8 and d7. 37. Rg8+! Kxg8 38. Qg4+ Kf8 39. Qg7+ Ke8 Arriving at an interest-


ing crossroads. 40. Rxe4+!


Not 40. Qg8+? Kd7 41. Qxf7+ Kd8 when Black’s mating


threat requires White to force a perpetual. And not 41. ... Kc8? 42. Qxa7 Rxa7 43. Rxe4 Kd8 44. f7 and


White queens. 40. ... Kd8 Not 40. ... Kd7 41. Re7+ mates in one.


41. Qf8+ Kc7 41. ... Kd7 42. Re7#.


42. Rc4+ Kb7 43. Qe7+ Kb6 44. Qxd6+ Kb5 45. Qc6+ Ka5 46. Ra4#


20 Chess Life for Kids February 2013


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