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Subject: Re: Testposition endgame /difficult?

Author: Mike Byrne

Date: 09:24:38 07/27/03

Go up one level in this thread


New game
[d]8/5KBB/p4b2/1pp1kb2/8/1P6/1P5P/8 b - - 0 1

Analysis by Crafty 19.04 ST:

1...Be6+ 2.Kf8 Bxg7+ 3.Kxg7 Bxb3 4.h4 Bd5 5.h5 Kd4
  -+  (-1.80)   Depth: 6   00:00:00  10kN
1...Be6+ 2.Kf8 Bxg7+ 3.Kxg7 Bxb3 4.h4 b4 5.Bd3 c4 6.Bg6
  µ  (-1.38)   Depth: 7   00:00:00  29kN
1...Be6+ 2.Kf8 Bxg7+ 3.Kxg7 Bxb3 4.h4 b4 5.Bd3 c4 6.Bg6
  µ  (-1.38)   Depth: 7   00:00:00  34kN
1...Be6+ 2.Kf8 Bxg7+ 3.Kxg7 Bxb3 4.h4 Bd1 5.Bg6 Bf3 6.h5 Kd4
  -+  (-1.46)   Depth: 8   00:00:00  53kN
1...Be6+ 2.Kf8 Bxg7+ 3.Kxg7 Bxb3 4.h4 Bd1 5.Bg6 Bf3 6.h5 Kd4
  -+  (-1.46)   Depth: 8   00:00:00  60kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bd5 4.h5 a5 5.Bxf6+ Kxf6 6.Bd3 c4 7.Bg6
  µ  (-1.18)   Depth: 9   00:00:00  202kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bd5 4.h5 a5 5.Bxf6+ Kxf6 6.Bd3 c4 7.Bg6
  µ  (-1.18)   Depth: 9   00:00:00  220kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 Bd1 5.Bg6 Kd4 6.Kf6 Bf3 7.h5 Bd5
  µ  (-1.12)   Depth: 10   00:00:00  353kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 Bd1 5.Bg6 Kd4 6.Kf6 Bf3 7.h5 Bd5
  µ  (-1.12)   Depth: 10   00:00:00  388kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 c4 5.h5 b4 6.Bg8 c3 7.Bxb3 cxb2 8.Bc2 b3
  µ  (-1.03)   Depth: 11   00:00:00  583kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 c4 5.h5 b4 6.Bg8 c3 7.Bxb3 cxb2 8.Bc2 b3
  µ  (-1.03)   Depth: 11   00:00:01  671kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 Bd1 5.Bg6 a5 6.h5 Bxh5 7.Bxh5 Kd4 8.Bf3
Kc4
  µ  (-0.78)   Depth: 12   00:00:01  1458kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 Bd1 5.Bg6 a5 6.h5 Bxh5 7.Bxh5 Kd4 8.Bf3
Kc4
  µ  (-0.78)   Depth: 12   00:00:01  1599kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.Bg8 c3 7.bxc3 Bxg8 8.cxb4 Bd5
9.h6
  µ  (-0.95)   Depth: 13   00:00:02  2618kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.Bg8 c3 7.bxc3 Bxg8 8.cxb4 Bd5
9.h6
  µ  (-0.95)   Depth: 13   00:00:02  2921kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.Bg8 Bd1 7.Bxc4 Bxh5 8.Bxa6
Kd4 9.Bb5 Bf3
  µ  (-0.89)   Depth: 14   00:00:03  4883kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.Bg8 Bd1 7.Bxc4 Bxh5 8.Bxa6
Kd4 9.Bb5 Bf3
  µ  (-0.89)   Depth: 14   00:00:04  5524kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.Bg8 Bd1 7.Bxc4 Bxh5 8.Bxa6
Kd4 9.Bb5 Kc5 10.Bd3
  µ  (-0.71)   Depth: 15   00:00:07  11332kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.Bg8 Bd1 7.Bxc4 Bxh5 8.Bxa6
Kd4 9.Bb5 Kc5 10.Bd3
  µ  (-0.71)   Depth: 15   00:00:08  12983kN
1...Be6+
  µ  (-1.11)   Depth: 16   00:00:11  17192kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.Bg8 Bd1 7.Bxc4 Bxh5 8.Bxa6
Kd4 9.Bb5 Kc5 10.Bd3
  µ  (-1.10)   Depth: 16   00:00:20  30055kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.h6 c3 7.bxc3 bxc3 8.Bg6 c2
9.h7 c1Q 10.h8Q Bc4 11.Qd8
  µ  (-1.20)   Depth: 17   00:00:33  50156kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.h6 c3 7.bxc3 bxc3 8.Bg6 c2
9.h7 c1Q 10.h8Q Bc4 11.Qd8
  µ  (-1.20)   Depth: 17   00:00:37  57206kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.h6 c3 7.bxc3 bxc3 8.Bd3 c2
9.h7 c1Q 10.h8Q Bc4 11.Qb8+ Kd5 12.Qd8+ Kc6 13.Qc8+ Kb5 14.Kf6
  µ  (-1.14)   Depth: 18   00:01:10  104462kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 b4 5.h5 c4 6.h6 c3 7.bxc3 bxc3 8.Bd3 c2
9.h7 c1Q 10.h8Q Bc4 11.Qb8+ Kd5 12.Qd8+ Kc6 13.Qc8+ Kb5 14.Kf6
  µ  (-1.14)   Depth: 18   00:01:22  123548kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 Bd1 5.Bg6 c4 6.h5 Bxh5 7.Bxh5 b4 8.Kf8 b3
9.Bg6 Kd4 10.Ke7 c3 11.bxc3+ Kxc3 12.Kd6 a5
  -+  (-1.48)   Depth: 19   00:02:51  245275kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 Bd1 5.Bg6 c4 6.h5 Bxh5 7.Bxh5 b4 8.Kf8 b3
9.Bg6 Kd4 10.Ke7 c3 11.bxc3+ Kxc3 12.Kd6 a5
  -+  (-1.48)   Depth: 19   00:03:15  280833kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 Bd1 5.Bg6 c4 6.h5 Bxh5 7.Bxh5 b4 8.Kf8 b3
9.Ke7 Kd4 10.Kd6 c3 11.bxc3+ Kxc3 12.Bf3 a5 13.Bc6 b2
  -+  (-1.42)   Depth: 20   00:06:15  534610kN
1...Be6+ 2.Kf8 Bxb3 3.h4 Bxg7+ 4.Kxg7 Bd1 5.Bg6 c4 6.h5 Bxh5 7.Bxh5 b4 8.Kf8 b3
9.Ke7 Kd4 10.Kd6 c3 11.bxc3+ Kxc3 12.Bf3 a5 13.Bc6 b2
  -+  (-1.42)   Depth: 20   00:07:22  634478kN

(Byrne, Secane, PA USA 27.07.2003)

the 6.... Bxh5 line is the winning line - 1:22 to see this line



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