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Subject: Re: Two interesting positions from Massy 2004

Author: Vincent Lejeune

Date: 06:29:01 06/21/04

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On June 21, 2004 at 09:02:50, Frederic Louguet wrote:

>As always, the semi-rapid Massy tournament was very friendly and interesting.
>And it was a real pleasure to see you again Christophe !
>
>Now the positions :
>
>The first one is from the game Chess Tiger - Chess Wizard.
>
>[D] 8/6k1/3R4/7p/6p1/5r2/7K/8 b
>
>Black could not win this position. I suppose it is winnable but I would
>appreciate an answer from those who have 6-men EGTBs.

from the krppkr EGTB :

Analysis by Hiarcs 9:

1. -+ (-#37): 1...Tf6
2. -+ (-#39): 1...Tf2+
3. -+ (-#39): 1...Tf1
4. -+ (-#39): 1...Tf4
5. -+ (-#39): 1...Tf5
6. -+ (-#39): 1...Tf7
7. -+ (-#39): 1...Tf8
8. -+ (-#40): 1...Te3
9. -+ (-#40): 1...Tc3
10. -+ (-#40): 1...Tb3
11. -+ (-#40): 1...Ta3
12. -+ (-#40): 1...Th3+
13. -+ (-#40): 1...Rh7
14. -+ (-#42): 1...Rf7
15. -+ (-#43): 1...Rf8
16. -+ (-#43): 1...Rg8
17. = (0.00): 1...g3+
18. = (0.00): 1...Rh8
19. = (0.00): 1...h4
20. +- (#20): 1...Td3
21. +- (#17): 1...Tg3

After 62...h4? it's draw, before, the krppkr endgame is winning

>
>Here is the game :
>
>[Event "Computer chess game"]
>[Site "Massy"]
>[Date "2004.06.20"]
>[Round "4"]
>[White "Chess Tiger"]
>[Black "ChessWizard"]
>[Result "1/2-1/2"]
>[TimeControl "1200"]
>
>1. d4 Nf6 2. Bg5 e6 3. e4 h6 4. Bxf6 Qxf6 5. c3 d5 6. e5 Qd8 7. b4 Be7 8.
>Nd2 O-O 9. Nb3 f6 10. Nf3 Nd7 11. exf6 Bxf6 12. Be2 e5 13. dxe5 Nxe5 14.
>Nfd4 a5 15. bxa5 Qe7 16. O-O c5 17. Nc2 c4 18. Nbd4 Rxa5 19. Rb1 Nc6 20.
>Rb5 Nxd4 21. Nxd4 Rxb5 22. Nxb5 Qc5 23. a4 Rd8 24. Bg4 Bxg4 25. Qxg4 d4 26.
>cxd4 Bxd4 27. Nxd4 Rxd4 28. Qg6 Qd5 29. Re1 Rd1 30. Qe8+ Kh7 31. f3 Rd2 32.
>Qe3 Ra2 33. Qe4+ Qxe4 34. fxe4 Rxa4 35. Kf2 Ra2+ 36. Kf3 Ra3+ 37. Kf4 b5
>38. e5 c3 39. e6 Ra8 40. Ke3 Kg6 41. Kd3 Rc8 42. Kc2 Kf6 43. e7 Kf7 44. Re5
>b4 45. Re4 Rb8 46. e8=Q+ Rxe8 47. Rxb4 Re2+ 48. Kxc3 Rxg2 49. Kd3 Rxh2 50.
>Ke3 Rh3+ 51. Kf2 g5 52. Rb6 g4 53. Kg2 h5 54. Rh6 Kg7 55. Rd6 Rf3 56. Kh2
>Re3 57. Ra6 Rh3+ 58. Kg2 Rc3 59. Rb6 Rf3 60. Kh2 Rh3+ 61. Kg2 Rd3 62. Ra6
>h4 63. Ra4 Rg3+ 64. Kh2 Kf6 65. Ra6+ Kf5 66. Ra5+ Kf4 67. Ra4+ Ke5 68. Ra5+
>Kd4 69. Ra4+ Kc5 70. Rf4 Kd5 71. Ra4 Kc6 72. Rd4 Kb6 73. Rc4 Kb7 1/2-1/2
>
>
>The second position occured in the game The Crazy Bishop - Chess Wizard. Black
>played 25..Nxg2. Is it the best move ? What do other programs play ?
>
>[D] 2q1r1k1/3bbpp1/3p1n1p/2p5/p3PP2/P2Rn2P/N1P1B1P1/NQ2B1K1 b
>
>The game :
>
>[Event "Computer chess game"]
>[Site "Massy"]
>[Date "2004.06.20"]
>[Round "6"]
>[White "TCB"]
>[Black "ChessWizard"]
>[Result "0-1"]
>[TimeControl "1200"]
>
>1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 O-O 7. O-O a6
>8. Bf4 Re8 9. Qd2 Bd7 10. Rfd1 Nc6 11. Qc1 b5 12. a3 Qc8 13. Be3 h6 14. Rb1
>Rb8 15. f3 Ne5 16. Bf2 c6 17. f4 Neg4 18. Be1 c5 19. Nb3 a5 20. h3 a4 21.
>Na1 b4 22. Na2 bxa3 23. bxa3 Rxb1 24. Qxb1 Ne3 25. Rd3 Nxg2 26. Kxg2 Nxe4
>27. Bf1 c4 28. Re3 Bc6 29. Kg1 Qf5 30. Qb6 Qxf4 31. Bg2 Bd8 32. Qa7 Bf6 33.
>c3 Be5 34. Re2 Re6 35. Bh4 Qh2+ 36. Kf1 Ng3+ 37. Ke1 Nxe2 38. Qb8+ Re8 39.
>Qxe8+ Bxe8 40. Nc2 Qxg2 41. Ne3 Qf3 42. Kd2 Bf4 43. Bf2 Qxf2 44. Kd1 Qxe3
>45. Kc2 Nxc3 46. h4 Qd2# 0-1



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