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Subject: Re: Windmill tactical Positions are too easy for chess programs

Author: Vincent Diepeveen

Date: 06:24:08 05/10/04

Go up one level in this thread


On May 09, 2004 at 10:08:55, Anthony Cozzie wrote:

Also this is dead easy for diep, just 3 ply it needs to find all this :

00:00    150 9 0 (2) 1 (0,0) -12.859 Rf6xg6 Rg5xg6
00:00   4000 240 0 (2) 1 (0,0) -1.275 Qe3xg5
00:00  31733 2856 0 (2) 2 (0,1) -0.771 Qe3xg5 Bc6-e8
00:00  56721 7941 0 (2) 3 (0,3) 4.239 Qe3xg5 Bd6-h2 Kg1xh2 h6xg5 Rf6xg6 Kg7-h7 R
g6xe6 Bc6-e4 Bd3xe4 Kh7-g8 Re6-g6 Kg8-h7 Rg6xb6 Kh7-g8 Rb6-g6 Kg8-h7 Rg6xg5 Kh7-
h6 Rg5-g6 Kh6-h5 Rf1-f5 Kh5xg6 Rf5-f2 Kg6-g5 Rf2xa2
00:00  71706 10756 0 (2) 4 (0,5) 4.838 Qe3xg5 Bd6-h2 Kg1xh2 Bc6-e8
00:00  68312 17078 0 (2) 5 (0,8) 10.407 Qe3xg5 Bd6-h2 Kg1xh2 h6xg5 Rf6xg6 Kg7-h7
 Rg6xe6 Kh7-g8 Re6-g6 Kg8-h7 Rg6xc6 Kh7-g8 Rc6-g6 Kg8-h7 Rg6xb6 Kh7-g8 Rb6-g6 Kg
8-h7 Rg6-a6 Kh7-g7 Ra6xa2
00:00  83722 40187 0 (2) 6 (1,12) 10.407 Qe3xg5 Bd6-h2 Kg1xh2 h6xg5 Rf6xg6 Kg7-h
7 Rg6xe6 Kh7-g8 Re6-g6 Kg8-h7 Rg6xc6 Kh7-g8 Rc6-g6 Kg8-h7 Rg6xb6 Kh7-g8 Rb6-g6 K
g8-h7 Rg6-a6 Kh7-g7 Ra6xa2
00:00  93003 91143 0 (2) 7 (2,20) 10.407 Qe3xg5 Bd6-h2 Kg1xh2 h6xg5 Rf6xg6 Kg7-h
7 Rg6xe6 Kh7-g8 Re6-g6 Kg8-h7 Rg6xc6 Kh7-g8 Rc6-g6 Kg8-h7 Rg6xb6 Kh7-g8 Rb6-g6 K
g8-h7 Rg6-a6 Kh7-g7 Ra6xa2
00:01 107610 200155 0 (2) 8 (2,32) 10.407 Qe3xg5 Bd6-h2 Kg1xh2 h6xg5 Rf6xg6 Kg7-
h7 Rg6xe6 Kh7-g8 Re6-g6 Kg8-h7 Rg6xc6 Kh7-g8 Rc6-g6 Kg8-h7 Rg6xb6 Kh7-g8 Rb6-g6
Kg8-h7 Rg6-a6 Kh7-g7 Ra6xa2
00:03 119612 405485 0 (2) 9 (5,50) 10.407 Qe3xg5 Bd6-h2 Kg1xh2 h6xg5 Rf6xg6 Kg7-
h7 Rg6xe6 Kh7-g8 Re6-g6 Kg8-h7 Rg6xc6 Kh7-g8 Rc6-g6 Kg8-h7 Rg6xb6 Kh7-g8 Rb6-g6
Kg8-h7 Rg6-a6 Kh7-g7 Ra6xa2
00:07 140043 1081133 0 (2) 10 (11,87) 10.407 Qe3xg5 Bd6-h2 Kg1xh2 h6xg5 Rf6xg6 K
g7-h7 Rg6xe6 Kh7-g8 Re6-g6 Kg8-h7 Rg6xc6 Kh7-g8 Rc6-g6 Kg8-h7 Rg6xb6 Kh7-g8 Rb6-
g6 Kg8-h7 Rg6-a6 Kh7-g7 Ra6xa2
quit


>On May 09, 2004 at 10:02:18, Jorge Pichard wrote:
>
>>On May 09, 2004 at 09:46:22, Anthony Cozzie wrote:
>>
>>>On May 09, 2004 at 09:00:16, Jorge Pichard wrote:
>>
>>Here is a very silly position, constructed by Mr. Matsukevich for the purpose of
>>illustrating the tactical themes of "The Windmill".  Watch how all of Black's
>>pieces drop off!
>>
>>>>[D]5n1k/1bnbnbR1/6bn/6n1/6b1/2B3n1/1K4b1/r7 w - - 0 1
>>>
>>>1. Rg7xf7 Kh8-g8 2. Rf7-g7 Kg8-h8 3. Rg7xe7 Kh8-g8 4. Re7-g7 Kg8-h8 5. Rg7xg6
>>>Kh8-h7 6. Rg6-g7 Kh7-h8 7. Rg7xg5 Kh8-h7 8. Rg5-g7 Kh7-h8 9. Rg7xg4 Kh8-h7 10.
>>>Rg4-g7 Kh7-h8 11. Rg7xg3 Kh8-h7 12. Rg3-g7 Kh7-h8 13. Rg7xd7 Kh8-g8 14. Rd7-g7
>>>Kg8-h8 15. Rg7xc7 Kh8-g8 16. Rc7-g7 Kg8-h8 17. Rg7xg2 Kh8-h7 18. Rg2-g7 Kh7-h8
>>>19. Rg7xb7 Kh8-g8 20. Kb2xa1
>>> = (3.50)       Depth: 19/39    00:00:01.95     1607kN
>>>
>>>anthony
>>
>>
>>                 HERE IS ANOTHER WINDMILL TACTICAL POSITION
>>
>>Here is a simply example, in which White is heavily behind on material, but sees
>>a chance to set up a windmill, and invests his Queen!
>>
>>
>>New game,
>>[D]3n3r/2p3k1/1pbbpRpp/6r1/3P4/2PBQ2P/q5P1/5RK1 w - - 0 1
>>
>>Analysis by Shredder 8:
>>
>>1.Qxg5 Qxg2+ 2.Qxg2
>>  -+  (-9.33)   Depth: 1/4   00:00:00
>>  -+  (-10.45)   Depth: 1/8   00:00:00
>>1.Be4 Bh2+ 2.Kxh2 Rxg2+ 3.Bxg2
>>  -+  (-10.44)   Depth: 1/8   00:00:00
>>  -+  (-11.85)   Depth: 3/9   00:00:00
>>1.Qxg5 hxg5 2.Rxg6+ Kh7 3.Rxg5+ Kh6
>>  -+  (-11.84)   Depth: 3/9   00:00:00
>>  -+  (-11.49)   Depth: 3/9   00:00:00
>>1.R1f2 Rxg2+ 2.Kf1 Qa1+ 3.Ke2 Rxf2+ 4.Qxf2 Qb2+ 5.Ke3 Qc1+ 6.Ke2
>>  -+  (-11.48)   Depth: 3/9   00:00:00
>>  -+  (-10.62)   Depth: 5/19   00:00:00
>>1.Qxg5 hxg5 2.Rxg6+ Kh7 3.Rxe6+ Kg7 4.Rg6+ Kh7 5.Rxd6+ Be4 6.Bxe4+ Kg8 7.Rg6+
>>Kh7 8.Rxb6+ Kg7 9.Rg6+ Kh7 10.Ra6+ Kg7 11.Rxa2 Re8 12.Bd5 g4 13.Ra7 Re7 14.hxg4
>>Rd7 15.Rf5
>>  -+  (-10.61)   Depth: 5/19   00:00:00
>>  +-  (9.95)   Depth: 20/52   00:03:45  43794kN
>>
>>(Pichard, MyTown 09.05.2004)
>
>This one is a bit harder.
>
>1. Qe3xg5 Bd6-h2 2. Kg1xh2 h6xg5 3. Rf6xg6 Kg7-h7 4. Rg6-f6 Bc6-e4 5. Bd3xe4
>Kh7-g8 6. Rf6-g6 Kg8-h7 7. Rg6-f6
> = (0.00)       Depth: 6/17     00:00:00.21     34kN
>1. Qe3xg5 Bd6-h2 2. Kg1xh2 h6xg5 3. Rf6xg6 Kg7-h7 4. Rg6xe6 Kh7-g8 5. Re6-g6
>Kg8-h7 6. Rg6xc6 Kh7-g8 7. Rc6-g6 Kg8-h7 8. Rg6xb6 Kh7-g8 9. Rb6-g6 Kg8-h7 10.
>Rg6-a6 Kh7-g7 11. Ra6xa2 Nd8-e6 12. Kh2-g3
> = (9.67)       Depth: 14/36    00:00:53.28     45626kN
>
>anthony



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