Author: Kurt Utzinger
Date: 09:09:10 07/07/03
Go up one level in this thread
On July 07, 2003 at 09:39:23, Rex wrote: >Round 2.1 in the RK2003 H8 makes a unusual move 30....c6? Can other programs >agree that this move is questionable? Is this a bug in H8? Hiarcs had a nice >advantage up till this move. > > [D]5r1k/2p1q1pp/4Bn1b/rNPP3b/2Q2p2/5N1P/8/2R2R1K b - - 2 1 Junior8 vs Hiarcs8 Black played 30...c6? A most interesting observation by Rex. The move 30...c6 is rather bad but Junior8 would not have done better as we can see from the analysis below !! Junior 8 - Hiarcs 8 5r1k/2p1q1pp/4Bn1b/rNPP3b/2Q2p2/5N1P/8/2R2R1K b - - 0 1 Analysis by Hiarcs 8: 30...Rfa8 31.Ne5 -+ (-1.73) Depth: 1 00:00:00 µ (-1.09) Depth: 2/7 00:00:00 30...Rb8 31.d6 cxd6 32.Nxd6 -+ (-1.50) Depth: 2/7 00:00:00 -+ (-1.56) Depth: 3/9 00:00:00 30...c6 31.d6 -+ (-1.59) Depth: 3/10 00:00:00 µ (-1.20) Depth: 4/12 00:00:00 30...Re8 31.Nbd4 Ra3 32.Nc6 Qf8 µ (-1.39) Depth: 4/14 00:00:00 µ (-1.30) Depth: 5/15 00:00:00 13kN 30...c6 31.d6 Qb7 32.Nc3 -+ (-1.64) Depth: 5/16 00:00:00 19kN µ (-1.38) Depth: 6/19 00:00:00 65kN 30...Be8 31.d6 cxd6 32.Nxd6 Ra4 33.Qb3 -+ (-1.48) Depth: 6/21 00:00:01 132kN µ (-1.40) Depth: 8/25 00:00:04 554kN 30...c6 31.d6 Qb7 32.Nc7 Ra3 33.Kg2 Re3 34.Bf5 Qb2+ 35.Rc2 Qa3 36.Rcf2 -+ (-1.48) Depth: 8/25 00:00:05 817kN -+ (-1.48) Depth: 10/33 00:00:35 5408kN 30...Be8 31.d6 cxd6 32.Nxd6 Ra4 33.Qb3 Ne4 34.Nxe8 Ng3+ 35.Kg1 -+ (-1.66) Depth: 10/33 00:01:00 9013kN -+ (-1.66) Depth: 11/35 00:02:37 22981kN 30...c6 31.d6 -+ (-1.87) Depth: 11/35 00:03:41 31595kN -+ (-1.62) Depth: 12/36 00:05:04 43635kN (Utzinger, MyTown 07.07.2003) ******************** Junior 8 - Hiarcs 8 5r1k/2p1q1pp/4Bn1b/rNPP3b/2Q2p2/5N1P/8/2R2R1K b - - 0 1 Analysis by Junior 8: 30...g5 31.Rce1 Bxf3+ +- (1.47) Depth: 3 00:00:00 30...g6 31.Rce1 Bxf3+ +- (1.42) Depth: 3 00:00:00 30...c6 31.d6 Bxf3+ 32.Rxf3 Qb7 ± (1.31) Depth: 3 00:00:00 30...Nd7 31.Rc3 Bxf3+ ± (0.88) Depth: 3 00:00:00 30...Bxf3+ 31.Rxf3 Bg5 32.Rxf4 ² (0.58) Depth: 3 00:00:00 1kN 30...Rb8 31.Nfd4 Be8 32.Rb1 Bh5 ² (0.57) Depth: 3 00:00:00 2kN ² (0.70) Depth: 6 00:00:00 17kN 30...g5 31.Ne5 Nxd5 ² (0.57) Depth: 6 00:00:00 33kN 30...g6 31.Ne5 Nxd5 ² (0.52) Depth: 6 00:00:00 43kN 30...Nxd5 31.Bxd5 Qd7 32.Nbd4 Qxh3+ 33.Kg1 Qg3+ 34.Kh1 Ra3 35.Rc2 Bg4 36.Rg1 Qh3+ 37.Rh2 Bxf3+ 38.Nxf3 ² (0.27) Depth: 6 00:00:00 57kN = (-0.04) Depth: 14 00:00:31 33935kN 30...c6 31.d6 Qb7 32.Nbd4 Ne4 33.Nb3 Ng3+ 34.Kg1 Ra3 35.Rf2 Bxf3 36.Rxf3 Ra2 37.Rb1 = (-0.21) Depth: 14 00:01:08 72781kN 30...Be8 31.c6 Bg6 32.Rce1 Ne4 33.Rxe4 Bxe4 34.Qxe4 Rxb5 35.Qe5 Rb3 36.Rf2 = (-0.22) Depth: 14 00:01:31 95773kN = (-0.10) Depth: 15 00:02:13 136315kN 30...c6 31.d6 Qb7 32.Nbd4 Ne4 33.Rb1 Qa8 34.d7 Rxc5 35.Qb4 Ng3+ 36.Kg2 Qa5 37.Qxa5 Rxa5 38.Rf2 Bxf3+ 39.Rxf3 Rg5 ³ (-0.51) Depth: 15 00:02:55 177266kN ³ (-0.53) Depth: 16 00:04:58 294276kN (Utzinger, MyTown 07.07.2003) Tournament: RK 2003 Ath 1.3/64 120'/60 Place: Zurich Round: 2.1 Date: 5/7/2003 White: Junior 8 Black: Hiarcs 8 Opening: E20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Be7 6. e4 dxe4 7. fxe4 e5 8. d5 O-O 9. Nf3 Bg4 10. Bd3White last book move 10... Bc5 Black last book move 11. h3 Bh5 12. g4 Bg6 13. g5 Nh5 14. b4 Be7 15. Be3 Nf4 16. Bxf4 exf4 17. e5 Bh5 18. O-O Nd7 19. Qe2 Bxg5 20. Rad1 Bh6 21. Kh1 Qe7 22. e6 Nf6 23. Bf5 Kh8 24. c5 fxe6 25. Bxe6 b6 26. Qc4 a5 27. Nb5 axb4 28. axb4 bxc5 29. bxc5 Ra5 30. Rc1 c6 31. d6 Qb7 32. Nbd4 Ne4 33. Rb1 Qa8 34. d7 Rxc5 35. Qb4 Rc3 36. Ra1 Qd8 37. Rfc1 c5 38. Rxc3 cxb4 39. Rc8 Nc5 40. Rxc5 Bxf3+ 41. Nxf3 Qf6 42. Rac1 Qxe6 43. Rc8 Qxh3+ 44. Nh2 g6 45. Rxf8+ Bxf8 46. d8Q Qf5 47. Rf1 g5 48. Qd4+ Kg8 49. Qc4+ Kg7 50. Re1 Bc5 51. Rd1 Be7 52. Rd5 Qb1+ 53. Nf1 h5 54. Kg1 Qg6 55. Qd4+ Kg8 56. Nd2 Qe6 57. Qc4 Qe3+ 58. Kf1 Qh3+ 59. Ke2 Kg7 60. Qd4+ Kh6 61. Ne4 Kg6 62. Re5 Qg4+ 63. Ke1 Bf6 64. Nxf6 Qg3+ 65. Ke2 Qg2+ 66. Kd3 Qf3+ 67. Kc4 Qc6+ 68. Rc5 Qa6+ 69. Rb5 Qc6+ 70. Kxb4 Qxf6 71. Rb6 1-0
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