17 Jan 2015

E01 Catalan: Early deviations (1.c4 c6 2.g3 Nf6 3.Bg2 d5 4.Nf3 e6 5.O-O Bd6 6.b3 O-O 7.Bb2 Nbd7 8.d4 b6 9.Nbd2 Bb7)

E01 Catalan: Early deviations (1.c4 c6 2.g3 Nf6 3.Bg2 d5 4.Nf3 e6 5.O-O Bd6 6.b3 O-O 7.Bb2 Nbd7 8.d4 b6 9.Nbd2 Bb7)

This was played on the fifth round of a tournament that was played at Salo in November, 2006. On the first three rounds of this tournament I lost all my games. On my fourth round game I was able to break my losing streak finally, but sadly this was only a short anomaly, because on this fifth round I suffered another loss. Having scored only one point in five games, I ended up on last place in the final standings of group D. This disastrous tournament meant that my rating dropped 78 points because of these five games. My opponent ended up being third last in the group due to this win. He managed to get 2 wins in 5 games and lost 3 games. I have added one more puzzle to mate in two, three, nine, ten and twelve pages.

[Event "SalSK"] [Site "?"] [Date "2006.11.05"] [Round "5"] [White "Vierjoki, Timo"] [Black "Salmi, Marko"] [Result "0-1"] [ECO "E01"] [WhiteElo "1600"] [BlackElo "1662"] [Annotator "Tactical Analysis 2.10 (5s), TV"] [PlyCount "76"] [EventDate "2006.11.05"] 1. c4 c6 (1... e6 2. g3 d5 3. b3 c6 4. Bb2 Nf6 5. Bg2 Nbd7 6. Nf3 Bd6 7. O-O { 1-0 (22) Verrascina,N (2145)-Reif,W Porto San Giorgio 1998}) 2. g3 Nf6 3. Bg2 d5 4. Nf3 e6 {A13 English Opening: Agincourt Defense. Catalan Defense Semi-Slav Defense} 5. O-O Bd6 6. b3 O-O 7. Bb2 Nbd7 8. d4 b6 9. Nbd2 Bb7 { E01 Catalan: Early deviations} 10. Re1 {-0.10/20} (10. Ne5 $16 {0.87/18}) 10... Re8 {0.71/18} (10... Ne4 $11 {-0.10/20}) 11. e4 dxe4 {0.81/20} (11... Nxe4 $14 {0.39/25} 12. Nxe4 dxe4 13. Rxe4 Qc7) 12. Nxe4 {0.38/22} (12. Ng5 $1 $16 { 0.81/20}) 12... Nxe4 $14 13. Rxe4 Nf6 $146 {0.95/19} (13... Qc7 $11 {0.23/22 remains equal.}) (13... c5 14. dxc5 Bxc5 15. Rg4 e5 16. Qc2 Qc7 17. Qf5 f6 18. Nd2 Bxg2 19. Kxg2 Qc6+ 20. Ne4 Bd4 21. Bxd4 exd4 22. Qxd7 {1-0 (22) Verrascina, N (2145)-Reif,W Porto San Giorgio 1998}) 14. Re2 {0.35/23} (14. Rh4 $16 { 0.95/19}) 14... Qe7 {0.90/19} (14... c5 $14 {0.35/23}) 15. Ne5 {0.13/22} (15. Qc2 $16 {0.90/19}) 15... Bxe5 {1.21/19} (15... c5 $11 {0.13/22}) 16. dxe5 { 0.36/25} (16. Rxe5 $16 {1.21/19} Red8 17. f4) 16... Nd7 {1.64/21} (16... Red8 $1 $14 {0.36/25} 17. Qe1 Ne8) 17. Qd3 {0.49/24} (17. Rd2 $18 {1.64/21} Nf8 18. Rd6) 17... Rad8 18. Qe4 {0.00/22} (18. Qe3 $16 {0.80/21}) 18... Nf8 {1.16/21} ( 18... Nc5 $11 {0.00/22} 19. Qc2 Na6) 19. Qg4 $2 {-0.36/24} (19. Rc2 $1 $16 { 1.16/21}) 19... Rd7 {0.70/20} (19... c5 $15 {-0.36/24}) 20. Be4 {0.09/26} ({ White should try} 20. Rc2 $14 {0.70/20}) 20... Red8 21. Rae1 Rd1 {0.65/24} ( 21... Kh8 $11 {0.03/25}) 22. Rxd1 {-0.45/26} (22. Qf3 $14 {0.65/24}) 22... Rxd1+ $15 23. Kg2 c5 24. Qf3 Bxe4 25. Qxe4 {-0.60/23} (25. Rxe4 $11 {-0.19/26 might be stronger.} Qd8 26. Re2) 25... Ng6 {0.00/24} ({Black should play} 25... Qg5 $15 {-0.60/23}) 26. f4 {-1.03/23} (26. Qa8+ $11 {0.00/24 keeps the balance. } Rd8 27. Qe4) 26... Qd8 $17 27. Kf2 {-1.25/22} (27. f5 $142 {-0.71/25} exf5 28. Qxf5) 27... Ne7 28. g4 $2 {-3.06/25} (28. Rc2 $17 {-0.95/25 was necessary.} ) 28... Ng6 {[#] Strongly threatening ...Qh4+.} 29. Ke3 {-3.56/22} (29. f5 $142 {-2.25/23} Qh4+ 30. Kg2 exf5 31. Qxf5) 29... Rf1 {-1.95/24} (29... h6 $142 { -3.56/22} 30. Bc3 Rf1) 30. f5 {-2.97/21} (30. Rd2 $142 {-1.95/24} Re1+ 31. Re2) 30... Nh4 {-1.23/27} ({Much less strong is} 30... exf5 31. gxf5 Rf4 32. Qg2 $17 ) (30... Rf4 $19 {-2.97/21 and Black stays clearly on top.} 31. Qc6 exf5 32. gxf5 Qg5 33. Qa8+ Nf8) 31. Rf2 {-1.67/23} (31. Rd2 $17 {-1.23/27} Re1+ 32. Re2) 31... Qg5+ {-0.89/27} (31... Rd1 $19 {-1.67/23 Hoping for ...exf5.} 32. f6 h5 $1 33. gxh5 Re1+ 34. Re2 Qd1 35. Qa8+ Kh7 36. Rxe1 Qxe1+ 37. Kd3 Qd1+ 38. Kc3 Nf5) 32. Ke2 {[#] White wants to mate with Qa8+.} Rxf2+ 33. Kxf2 {Intending Qa8+ and mate.} Qd2+ {0.00/24} (33... h5 $17 {-1.49/21} 34. fxe6 fxe6 35. Qa8+ Kh7 36. Qe4+ Kh6 37. gxh5 Kxh5) 34. Qe2 $2 {-4.39/21} (34. Kg3 $11 {0.00/24 and White has nothing to worry.} h6 35. fxe6 fxe6 36. Bc1 Qxc1 37. Kxh4) 34... Qf4+ $19 {Black is clearly winning.} 35. Ke1 Nf3+ 36. Kd1 Qxg4 37. fxe6 fxe6 38. Bc1 {-66.86/20} (38. Kc1 $142 {-4.41/26} h5 39. Kb1) 38... Qg1+ {Accuracy: White = 17%, Black = 12%.} 0-1

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