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Subject: Re: Test Position. Hard pawn endgame

Author: Slater Wold

Date: 16:37:24 09/29/01

Go up one level in this thread


[D]R4rk1/5pp1/5q1p/1p1Qp3/8/1B6/1PP2bPP/5K2 w - - 0 1

Qxf7+ and after the changes, the pawn ending is won.

Deep Junior 7 - W,S
R4rk1/5pp1/5q1p/1p1Qp3/8/1B6/1PP2bPP/5K2 w - - 0 1

Analysis by Deep Junior 7:

1.c3 Rxa8 2.Qxa8+
  -+  (-1.57)   Depth: 3   00:00:00
1.Rxf8+ Kxf8 2.Qxf7+ Qxf7 3.Bxf7
  =  (0.01)   Depth: 3   00:00:00
1.Rxf8+ Kxf8 2.Qxf7+ Qxf7 3.Bxf7
  =  (0.01)   Depth: 3   00:00:00
1.Rxf8+ Kxf8 2.Qa8+ Ke7 3.Qb7+ Kd8 4.Qxf7 Bc5+ 5.Qxf6+
  =  (-0.18)   Depth: 6   00:00:00  12kN
1.Qxf7+!
  ²  (0.31)   Depth: 6   00:00:00  14kN
1.Qxf7+! Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Ke3 Kf6
  ²  (0.35)   Depth: 6   00:00:00  15kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Ke3 Kf6 6.Ke4
  ³  (-0.64)   Depth: 9   00:00:00  93kN
1.Rxf8+ Kxf8 2.Qa8+ Ke7 3.Qb7+ Kd6 4.Qd5+ Ke7
  =  (0.00)   Depth: 9   00:00:00  191kN
1.Rxf8+ Kxf8 2.Qa8+ Ke7 3.Qb7+ Kd6 4.Qd5+ Ke7
  =  (0.00)   Depth: 12   00:00:01  1122kN
1.Rxf8+ Kxf8 2.Qa8+ Ke7 3.Qb7+ Kd6 4.Qd5+ Ke7
  =  (0.00)   Depth: 15   00:00:04  9505kN
1.Rxf8+ Kxf8 2.Qa8+ Ke7 3.Qb7+ Kd6 4.Qd5+ Ke7
  =  (0.00)   Depth: 18   00:00:51  118794kN
1.Rxf8+ Kxf8 2.Qa8+ Ke7 3.Qb7+ Kd6 4.Qd5+ Ke7
  =  (0.00)   Depth: 20   00:04:34  636559kN, tb=11

(W,  29.09.2001)


After "the exchanges" ~ 1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2


W,S - Deep Junior 7
5k2/6p1/7p/1p2p3/8/8/1PP2bPP/5K2 w - - 0 1

Analysis by Deep Junior 7:

4...g5 5.Ke3
  ³  (-0.45)   Depth: 3   00:00:00
4...Ke7 5.Ke3
  =  (0.13)   Depth: 6   00:00:00
4...Ke7 5.Ke3
  =  (0.13)   Depth: 6   00:00:00
4...Ke7 5.Ke3
  =  (0.13)   Depth: 6   00:00:00
4...Ke7 5.Ke3
  =  (0.13)   Depth: 6   00:00:00
4...Ke7 5.Ke3
  =  (0.13)   Depth: 9   00:00:00
4...Ke7 5.Ke3
  =  (0.13)   Depth: 12   00:00:00  5kN
4...Ke7 5.Ke3
  =  (0.13)   Depth: 15   00:00:00  18kN
4...Ke7 5.Ke3
  =  (0.13)   Depth: 18   00:00:00  78kN
4...Ke7 5.Ke3
  =  (0.13)   Depth: 21   00:00:00  329kN
4...Ke7 5.Ke3
  =  (0.13)   Depth: 24   00:00:02  2684kN, tb=12
4...Ke7 5.g4 b4 6.Ke3 Ke6 7.Ke4 g6
  =  (0.14)   Depth: 27   00:00:13  23653kN, tb=2265
4...h5 5.Ke3 Ke7 6.Ke4
  =  (0.13)   Depth: 27   00:00:15  25973kN, tb=2974
4...h5 5.Ke3 Ke7 6.Ke4 Kd6 7.h4 b4 8.c3 bxc3 9.bxc3 Ke6 10.c4 Kd6 11.Kf5 g6+
12.Ke4 Kc5 13.Kxe5 Kxc4
  =  (0.16)   Depth: 29   00:00:33  55405kN, tb=8062
4...h5 5.Ke3 Ke7 6.Ke4 Kd6 7.h4 Ke6 8.c3 Kf6 9.b3 Ke6 10.c4
  =  (0.18)   Depth: 31   00:01:02  103806kN, tb=20073
4...h5 5.Ke3 Ke7 6.Ke4 Kd6 7.h4 Ke6 8.c3 Kf6 9.b3 Ke6 10.c4 bxc4 11.bxc4 Kd6
  =  (0.20)   Depth: 33   00:01:55  189818kN, tb=52531

(W,  29.09.2001)

and Shredder 5.32:

Shredder 5.32 - W,S
R4rk1/5pp1/5q1p/1p1Qp3/8/1B6/1PP2bPP/5K2 w - - 0 1

Analysis by Shredder 5.32:

1.Rxf8+ Kxf8 2.Qxb5
  ²  (0.39)   Depth: 1/2   00:00:00
1.Rxf8+ Kxf8 2.g4 Bd4+ 3.Ke2
  =  (0.07)   Depth: 1/2   00:00:00
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2
  =  (0.17)   Depth: 1/2   00:00:00
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2
  =  (0.17)   Depth: 1/2   00:00:00
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2
  =  (0.17)   Depth: 2/4   00:00:00
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2
  =  (0.17)   Depth: 3/6   00:00:00
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2
  =  (0.17)   Depth: 4/8   00:00:00
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2
  =  (0.17)   Depth: 5/10   00:00:00
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Ke3
  =  (0.16)   Depth: 6/12   00:00:00  6kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Ke3 Ke6
  =  (0.18)   Depth: 7/14   00:00:00  24kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Ke3 Ke6 6.Ke4
  =  (0.18)   Depth: 8/16   00:00:00  51kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Ke3 Ke6 6.Ke4 g5
  =  (0.23)   Depth: 9/18   00:00:00  114kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Ke3 Ke6 6.Ke4 g5 7.c3 Kd6
  ²  (0.36)   Depth: 10/20   00:00:00  239kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Ke3 Ke6 6.Ke4 g5 7.g4 Kd6
8.c3
  ²  (0.27)   Depth: 11/22   00:00:00  470kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Kf3 Ke6 6.Ke4 h5 7.g3 g6
8.c3 g5
  ²  (0.42)   Depth: 12/24   00:00:02  1409kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Kf3 Ke6 6.Ke4 h5 7.c3 g5
8.b3 g4 9.g3
  ²  (0.34)   Depth: 13/26   00:00:04  2672kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Kf3 Ke6 6.Ke4 Kd6 7.c3 g6
8.g4 Ke6 9.b3 h5 10.g5
  ²  (0.40)   Depth: 14/28   00:00:14  9335kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Kf3 Ke6 6.Ke4 h5 7.c3 g5
8.b3 Kd6 9.Kf5 g4 10.c4 bxc4 11.bxc4
  ²  (0.65)   Depth: 15/30   00:00:36  22035kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Kf3 Ke6 6.Ke4 h5 7.c3 h4
8.b3 Kd6 9.c4 bxc4 10.g3 cxb3 11.Kd3
  ±  (0.78)   Depth: 15/30   00:00:37  23160kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Kf3 Ke6 6.Ke4 h5 7.c3 h4
8.b3 Kd6 9.h3 g6 10.c4 b4 11.Kd3 Kc5
  ±  (0.78)   Depth: 16/32   00:01:47  63243kN
1.Qxf7+ Qxf7 2.Bxf7+ Kxf7 3.Rxf8+ Kxf8 4.Kxf2 Ke7 5.Kf3 Ke6 6.Ke4 Kd6 7.c3 Ke7
8.b3 Kd6 9.g4 Ke7 10.c4 Kd6 11.cxb5 Kc5 12.Kxe5
  ±  (0.99)   Depth: 17/34   00:05:33  193684kN

(W,  29.09.2001)



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