Author: Eduard Nemeth
Date: 09:15:36 08/24/01
Why played Tiger against Parsos first 20. Bb3+? and then 21. Bd5 ....? Here first the game: [Event "18th WMCC 6th Olympiad Maastricht "] [Site "?"] [Date "2001.??.??"] [Round "9"] [White "Chess Tiger 14.6, AMD 1.4"] [Black "Parsos, 2x Intel 1.0"] [ECO "C96"] [Result "0-1"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 Bb7 11. b4 Nc4 12. a4 d5 13. exd5 e4 14. Ng5 Qxd5 15. Nxe4 Nd6 16. f3 Nfxe4 17. fxe4 Qg5 18. d3 Qg6 19. Qd2 f5 20. Bb3+ Kh8 21. Bd5 Bh4 22. Bxb7 Bxe1 23. Qxe1 Nxb7 24. axb5 axb5 25. Rxa8 Rxa8 26. Nd2 Qd6 27. exf5 Qxd3 28. Qe5 Nd6 29. f6 Kg8 30. Kh2 Qf5 31. Qxf5 Nxf5 32. Ne4 Re8 33. Ng3 Nxg3 34. Kxg3 Re2 35. Bf4 gxf6 36. Bxc7 Re3+ 37. Kf2 Rxc3 38. Bb6 Kf7 39. Bc5 Ke6 40. Bf8 f5 41. Ke2 f4 42. Kf2 Kf5 43. Bg7 Rb3 44. Bf8 Ke4 45. Bd6 Kd5 46. Bf8 Kc4 47. Bd6 Rxb4 0-1 On my P 600 Gambit Tiger 2.0 plays 20. Bb3+ (about after 8 minutes on P600) and 21. Bd5 too, see my analysis with 96 Mb hash: Chess Tiger - Parsos [D]r4r1k/1bp1b1pp/p2n2q1/1p3p2/PP2P3/1BPP3P/3Q2P1/RNB1R1K1 w - - 0 1 Analysis by Gambit Tiger 2.0: 21.e5 Nf7 22.Bxf7 Qxf7 23.d4 a5 24.bxa5 Rxa5 25.Qb2 Qg6 26.c4 Bh4 27.Rf1 Qg3 28.cxb5 ² (0.46) deph: 12 00:00:57 8750kN 21.e5 Bh4 22.Rf1 f4 23.exd6 f3 24.Rf2 Bxf2+ 25.Qxf2 fxg2 26.Bf4 Qxd3 27.Kh2 Qxd6 28.Bxd6 Rxf2 = (-0.22) deph: 13 00:02:29 22975kN 21.Bd5 Bh4 22.Bxb7 Bxe1 23.Qxe1 Nxb7 24.e5 f4 25.d4 f3 26.Qf2 bxa4 27.Be3 Qe4 28.Nd2 µ (-0.80) deph: 14 00:12:56 131697kN You can see that the "score" from Tiger is in deep 13 only -0.22 (for move e5), and in deep 14--> - 0.80 (for move Bd5). Why played Tiger then here not 21. e5?
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