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Subject: Fischer move/Program move

Author: K. Burcham

Date: 12:47:19 12/17/05




[D] 4r1k1/pp3p1p/2p5/5p2/5P2/2PB2KP/P1QB2P1/1R2r1q1 b - - 0 25

I was reading in Chess Life, NM Todd Bardwick analysis praising Fischer on his
choice of moves, Rxb1. Of course Fischer has winning position either way.
Programs say best move is not Rxb1. Not sure what Todds point was. Maybe he
should use a program before commenting on best move?

Fischer move 25...Rxb1. +4 black
Program move 25...R1e3. +9 black

25... R1e3+ (25... Rxb1 26. Qxb1 Qxb1 27. Bxb1 Re2) 26. Bxe3 Rxe3+ 27. Kh4 Qh2
28. Qf2 Rxh3+ 29. Kg5 Rxd3 30. Qf3 h6+ 31. Kxf5 Rxf3 32. gxf3 Qc2+ 33. Ke5 Qxb1
34. f5 Qe1+ 35. Kd6 Qxc3 36. Kc7 Qxf3 37. Kxb7



Fischer move 25...Rxb1. After the exchange.

 [D] 6k1/pp3p1p/2p5/5p2/5P2/2P3KP/P2Br1P1/1B6 w - - 0 1

Zappa 1.1:


28.Kf3 Rxd2 29.a4 Kg7 30.Bxf5 Ra2 31.Bc8 b6 32.Bd7 Ra3 33.Ke4 Rxa4+ 34.Kd3 Rxf4
35.Bxc6 a5 36.Be4
  -+  (-4.64)   Depth: 15   00:00:00
28.Kf3 Rxd2 29.a4 Kg7 30.Bxf5 Ra2 31.Bc8 b6 32.Bd7 Ra3 33.Ke4 Rxa4+ 34.Kd3 Rxf4
35.Bxc6 a5 36.Be4
  -+  (-4.58)   Depth: 16   00:00:01  804kN
28.Kf3 Rxd2 29.a4 Kg7 30.Bxf5 h6
  -+  (-4.58)   Depth: 16   00:00:32  18920kN
28.Kf3 Rxd2 29.a4 Kg7 30.Bxf5 Ra2 31.Bc8 b6 32.Bd7 Ra3 33.g4 Rxc3+ 34.Ke4 f6
35.Kd4 Rc2 36.Be6 Rd2+ 37.Ke4
  -+  (-4.64)   Depth: 17   00:00:47  27294kN
28.Kf3 Rxd2 29.a4 Kg7 30.Bxf5 Ra2 31.Bc8 b6 32.Bd7 Ra3 33.g4 Rxc3+ 34.Ke4 f6
35.Kd4 Rc2 36.Be6 Rd2+
  -+  (-4.64)   Depth: 17   00:01:00  34807kN
28.Kf3 Rxd2 29.a4 Kg7 30.Bxf5 Ra2 31.Bc8 b6 32.Bd7 Rc2 33.Ke4 Rxg2 34.Bxc6 Rg3
35.Kd4 Rxh3 36.Be4 Kf6
  -+  (-4.63)   Depth: 18   00:01:17  45547kN
28.Kf3 Rxd2 29.a4 Kg7 30.Bxf5 Ra2 31.Bc8 b6 32.Bd7 Rc2 33.Ke4 Rxg2 34.Bxc6 Rg3
35.Kd4 Rxh3 36.Be4 Kf6
  -+  (-4.63)   Depth: 18   00:01:35  56765kN
28.Kf3 Rxd2 29.a4 a5 30.Bxf5 Ra2 31.Bc8 b6 32.Bb7 Rxa4 33.Bxc6 Rc4 34.Bb5 Rxc3+
35.Ke4 Kg7 36.Kd4 Rc2 37.g4 Kf6
  -+  (-4.84)   Depth: 19   00:02:37  92015kN
28.Kf3 Rxd2 29.a4 a5 30.Bxf5 Ra2 31.Bc8 b6 32.Bb7 Rxa4 33.Bxc6 Rc4 34.Bb5 Rxc3+
35.Ke4 Kg7 36.Kd4 Rc2 37.g4 Kf6
  -+  (-4.84)   Depth: 19   00:03:34  124690kN



Zappa 1.1:

25...Rxb1 26.Qxb1 Qxb1 27.Bxb1 Re2 28.Kf3 Rxd2 29.a4 a5 30.Bxf5 b5 31.axb5 cxb5
32.Ke3 Rxg2 33.Kf3 Rg1 34.Bd3 Rc1 35.Bxb5 Rxc3+ 36.Kg4 Kg7 37.Be2 a4 38.Bf3
  -+  (-3.83)   Depth: 10   00:00:01  470kN
25...Rxb1 26.Qxb1 Qxb1 27.Bxb1 Re2 28.Kf3 Rxd2 29.a4 a5 30.Bxf5 b5 31.axb5 cxb5
32.Ke3 Rxg2 33.Kf3 Rg1 34.Bd3 Rc1 35.Bxb5 Rxc3+ 36.Kg4 Kg7 37.Be2 a4 38.Bf3
  -+  (-3.83)   Depth: 10   00:00:01  613kN
25...Rxb1 26.Qxb1 Qxb1 27.Kh2 Qxd3 28.Kh1
  -+  (-4.13)   Depth: 11   00:00:01  771kN
25...Rxb1 26.Qxb1 Qxb1 27.Bxb1 Re2 28.Kf3 Rxd2 29.a4 a5 30.Bxf5 b5 31.axb5 cxb5
32.Ke3 Rxg2 33.Kf3 Rg1 34.Bd3 Rc1 35.Bxb5 Rxc3+ 36.Kg4 Kg7 37.Be2 a4 38.Bf3
  -+  (-3.96)   Depth: 11   00:00:01  814kN
25...Rxb1 26.Qxb1 Qxb1 27.Bxb1 Re2 28.Kf3 Rxd2
  -+  (-3.96)   Depth: 11   00:00:02  1120kN
25...Rxb1 26.Qxb1 Qxb1 27.Bxb1 Re2 28.Kf3
  -+  (-4.26)   Depth: 12   00:00:02  1513kN
25...Rxb1 26.Qxb1 Qxb1 27.Bxb1 Re2 28.Kf3 Rxd2 29.Bxf5 Rxa2 30.Bc2 Rxc2 31.g4
Rxc3+ 32.Ke4 Rc4+ 33.Ke3 a5 34.Kf3 a4
  -+  (-3.86)   Depth: 12   00:00:02  1568kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Bxf5 Qxf4+ 29.Kh5 Rg3 30.Bg4 Rxg4 31.Qf5
Qxf5+ 32.Kh6
  -+  (-5.76)   Depth: 12   00:00:06  3504kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.Kg5 Rg3+ 30.Kxf5 Qh5+ 31.Kf6
Qh6+ 32.Bg6 Qxg6+ 33.Ke7 Rd3
  -+  (-6.22)   Depth: 12   00:00:07  4193kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.Kg5 Rg3+ 30.Kxf5 Qh5+ 31.Kf6
Qh6+ 32.Bg6 Qxg6+ 33.Ke7 Rd3
  -+  (-6.22)   Depth: 12   00:00:07  4298kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.Kg5 Rxd3 30.c4 Rd6 31.Kxf5
Qh5+ 32.Ke4 f5+ 33.Ke5 Qg6
  -+  (-5.67)   Depth: 13   00:00:09  5252kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.Kg5 Rxd3 30.c4 Rd6 31.Kxf5
Qh5+ 32.Ke4 f5+ 33.Ke5 Qg6
  -+  (-5.67)   Depth: 13   00:00:11  6439kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.Kg5 Rxd3 30.c4 Rd6 31.Qxa7
Qxg2+ 32.Kh5 Kg7 33.Kh4 Qh2+ 34.Kg5
  -+  (-5.97)   Depth: 14   00:00:14  8341kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.Kg5 Rxd3 30.c4 Rd6 31.Qxa7
Qxg2+ 32.Kh4 Kg7 33.Kh5 Qe2+ 34.Kg5
  -+  (-7.47)   Depth: 14   00:00:21  11653kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.gxh3 Qxf2+ 30.Kg5 Qg3+
31.Kf6 Qxd3 32.Rb3 b6 33.c4 Qd6+ 34.Kxf5 Qe6+ 35.Kg5 Qxc4
  -+  (-9.16)   Depth: 14   00:00:30  16312kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.gxh3 Qxf2+ 30.Kg5 Qg3+
31.Kf6 Qxd3 32.Rb3 b6 33.c4 Qd6+ 34.Kxf5 Qe6+ 35.Kg5 Qxc4
  -+  (-9.16)   Depth: 14   00:00:33  18334kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.gxh3 Qxf2+ 30.Kg5 Qg3+
31.Kf6 Qxd3 32.Rb3 h6 33.Ke7 b6 34.h4 Qe3+ 35.Kd7 Qxf4 36.Kxc6 Qxh4
  -+  (-9.35)   Depth: 15   00:00:42  23586kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.gxh3 Qxf2+ 30.Kg5 Qg3+
31.Kf6 Qxd3 32.Rb3 h6 33.Ke7 b6 34.h4 Qe3+ 35.Kd7 Qxf4 36.Kxc6 Qxh4
  -+  (-9.35)   Depth: 15   00:00:47  26910kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.gxh3 Qxf2+ 30.Kg5 Qg3+
31.Kf6 Qxd3 32.Rb3 Qd6+ 33.Kxf5 Qe6+ 34.Kg5 Qxh3 35.f5 b5
  -+  (-9.56)   Depth: 16   00:01:02  35133kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.gxh3 Qxf2+ 30.Kg5 Qg3+
31.Kf6 Qxd3 32.Rb3 Qd6+ 33.Kxf5 Qe6+ 34.Kg5 Qxh3 35.f5 b5
  -+  (-9.56)   Depth: 16   00:01:11  41376kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.gxh3 Qxf2+ 30.Kg5 Qg3+
31.Kf6 Qxd3 32.Rb3 h6 33.Ke7 Qe2+ 34.Kd7 Qe6+ 35.Kd8 Qd6+ 36.Ke8 b5
  -+  (-9.50)   Depth: 17   00:01:36  55441kN
25...R1e3+ 26.Bxe3 Rxe3+ 27.Kh4 Qh2 28.Qf2 Rxh3+ 29.gxh3 Qxf2+ 30.Kg5 Qg3+
31.Kf6 Qxd3 32.Rb3 h6 33.Ke7 Qe2+ 34.Kd7 Qe6+ 35.Kd8 Qd6+ 36.Ke8 b5
  -+  (-9.50)   Depth: 17   00:02:07  75802kN




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