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Subject: Re: # in 19

Author: Djordje Vidanovic

Date: 17:29:26 04/15/03

Go up one level in this thread


I think that my old Novag Expert was able to find the mate, but it was such a
long time ago that I am not sure now...

Chess Tiger 15 finds the mate, in 17 moves... which is strange.  Here's the
analysis:

New game
Bk6/1P2p1pp/RP1p3p/P7/2P5/4p3/4p1p1/4Kbrb w - - 0 1

Analysis by Chess Tiger 15.0:

  +-  (#17)   Depth: 35   00:00:08  6892kN
1.Ra7 g5 2.Ra6 e5 3.Ra7 e4 4.Ra6 g4 5.Ra7 h5 6.Ra6 h4 7.Ra7 h6 8.Ra6 h5 9.Ra7 h3
10.Ra6 h2 11.Ra7 g3 12.Ra6
  +-  (#17)   Depth: 36   00:00:09  7943kN
1.Ra7 g5 2.Ra6 e5 3.Ra7 e4 4.Ra6 g4 5.Ra7 h5 6.Ra6 h4 7.Ra7 h6 8.Ra6 h5 9.Ra7 h3
10.Ra6 h2 11.Ra7 g3 12.Ra6
  +-  (#17)   Depth: 37   00:00:10  8713kN
1.Ra7 g5 2.Ra6 e5 3.Ra7 e4 4.Ra6 g4 5.Ra7 h5 6.Ra6 h4 7.Ra7 h6 8.Ra6 h5 9.Ra7 h3
10.Ra6 h2 11.Ra7 g3 12.Ra6
  +-  (#17)   Depth: 38   00:00:11  10003kN
1.Ra7 g5 2.Ra6 e5 3.Ra7 e4 4.Ra6 g4 5.Ra7 h5 6.Ra6 h4 7.Ra7 h6 8.Ra6 h5 9.Ra7 h3
10.Ra6 h2 11.Ra7 g3 12.Ra6
  +-  (#17)   Depth: 39   00:00:13  11767kN
1.Ra7 g5 2.Ra6 e5 3.Ra7 e4 4.Ra6 g4 5.Ra7 h5 6.Ra6 h4 7.Ra7 h6 8.Ra6 h5 9.Ra7 h3
10.Ra6 h2 11.Ra7 g3 12.Ra6
  +-  (#17)   Depth: 40   00:00:15  13729kN
1.Ra7 g5 2.Ra6 e5 3.Ra7 e4 4.Ra6 g4 5.Ra7 h5 6.Ra6 h4 7.Ra7 h6 8.Ra6 h5 9.Ra7 h3
10.Ra6 h2 11.Ra7 g3 12.Ra6
  +-  (#17)   Depth: 41   00:00:17  16127kN
1.Ra7 g5 2.Ra6 e5 3.Ra7 e4 4.Ra6 g4 5.Ra7 h5 6.Ra6 h4 7.Ra7 h6 8.Ra6 h5 9.Ra7 h3
10.Ra6 h2 11.Ra7 g3 12.Ra6
  +-  (#17)   Depth: 42   00:00:19  18769kN

(Vidanovich, Filozofski fakultet 16.04.2003)

Deep Sjeng 1.0 has problems. It reaches its final depth and starts a loop.  The
same thing happens to Junior 7... Nimzo 8... Anaconda... Fritz 8... Crafty...

New game
Bk6/1P2p1pp/RP1p3p/P7/2P5/4p3/4p1p1/4Kbrb w - - 0 1

Analysis by Deep Sjeng 1.0:

  =  (0.00)   Depth: 10/12   00:00:01  9kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 19/19   00:00:02  49kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 20/20   00:00:02  55kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 21/21   00:00:02  64kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 22/22   00:00:03  76kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 23/23   00:00:03  90kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 24/24   00:00:03  105kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 25/25   00:00:03  119kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 26/26   00:00:03  137kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 27/27   00:00:03  157kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 28/28   00:00:03  182kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 29/29   00:00:03  207kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 30/30   00:00:04  232kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 31/31   00:00:04  263kN
1.Ra7 g5 2.c5 dxc5 3.a6 g4
  =  (0.00)   Depth: 32/32   00:00:04  298kN

(Vidanovich, Filozofski fakultet 16.04.2003)

Doctor 3.0 finds the mate in 19 instantly.  So does Shredder 7.04...

New game
Bk6/1P2p1pp/RP1p3p/P7/2P5/4p3/4p1p1/4Kbrb w - - 0 1

Analysis by Doctor? 3.0:

1.Ra7 e6 2.c5 dxc5 3.a6 c4
  =  (0.00)   Depth: 92/32   00:00:00  24kN
1.Ra7 e6 2.Ra6 h5 3.Ra7 h4 4.Ra6 h3 5.Ra7 h2 6.Ra6 e5 7.Ra7 e4 8.Ra6 g6 9.Ra7 g5
10.Ra6 h6
  +-  (#19)   Depth: 98/32   00:00:00  51kN

(Vidanovich, Filozofski fakultet 16.04.2003)


New game
Bk6/1P2p1pp/RP1p3p/P7/2P5/4p3/4p1p1/4Kbrb w - - 0 1

Analysis by Shredder 7.04:

1.Ra7 h5 2.c5 dxc5 3.a6 h4
  =  (0.00)   Depth: 33/33   00:00:00  14kN
1.Ra7 h5 2.c5 dxc5 3.a6 h4
  =  (0.00)   Depth: 34/34   00:00:00  14kN
1.Ra7 h5 2.c5 dxc5 3.a6 h4
  =  (0.00)   Depth: 35/35   00:00:00  15kN
1.Ra7 h5 2.c5 dxc5 3.a6 h4
  =  (0.00)   Depth: 36/36   00:00:00  15kN
1.Ra7 h5 2.c5 dxc5 3.a6 h4
  =  (0.00)   Depth: 37/37   00:00:00  16kN
1.Ra7 h5 2.Ra6 e6 3.Ra7 g6 4.Ra6 e5 5.Ra7 e4 6.Ra6 h6 7.Ra7 g5 8.Ra6 h4 9.Ra7 h5
10.Ra6 g4 11.Ra7 h3 12.Ra6 h2 13.Ra7 g3 14.Ra6 h4 15.Ra7
  +-  (#19)   Depth: 38/38   00:00:00  200kN
1.Ra7 h5 2.Ra6 e6 3.Ra7 g6 4.Ra6 e5 5.Ra7 e4 6.Ra6 h6 7.Ra7 g5 8.Ra6 h4 9.Ra7 h5
10.Ra6 g4 11.Ra7 h3 12.Ra6 h2 13.Ra7 g3 14.Ra6 h4 15.Ra7
  +-  (#19)   Depth: 38/43   00:00:01  461kN

(Vidanovich, Filozofski fakultet 16.04.2003)



-- Djordje




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