Test Position

Discussion of anything and everything relating to chess playing software and machines.

Moderators: bob, hgm, Harvey Williamson

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
rafowell

Re: Test Position - Nf6+ continuation

Post by rafowell » Mon Apr 09, 2007 2:50 pm

I had HIARCS play the Nf6+ continuation out at 15 min/move.
White is winning, but it takes a while.

Code: Select all

[Event "?"]
[Site "?"]
[Date "2007.04.08"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "3r1rkn/ppq1bpp1/4p2p/2p4Q/2BPN3/P1P1P2R/1P4PP/5RK1 w - - 0 1"]

1. Nf6+ Bxf6 2. Rxf6 Ng6 3. Bxe6 Nf4 4. exf4 fxe6 5. Rxh6 gxh6 6. Qxh6 Qg7 7.
Rg3 Qxg3 8. Qxe6+ Rf7 9. hxg3 cxd4 10. cxd4 Rxd4 11. f5 Rd1+ 12. Kh2 Kf8 13. g4
Rh7+ 14. Kg3 Rd3+
[D] 5k2/pp5r/4Q3/5P2/6P1/P2r2K1/1P4P1/8 w - - 3 14

and the game grinds on ...

Code: Select all

+4.25  15. Kf4 Rhd7 16. g5 R3d4 17. Kg3 Rd3 18. Kh2 Rh7 19. Kg1 Rd1 20. Kf2 Rd2 21. Kf3 Rhd7 22. Qe5 R7d3 23. Kg4 Rxg2 24. Kh4 Rdd2 25. Qb8 Ke7 26. Qxb7 Kd6 27. b4 Rdf2

User avatar
JVMerlino
Posts: 1003
Joined: Wed Mar 08, 2006 9:15 pm
Location: San Francisco, California

Re: Test Position

Post by JVMerlino » Mon Apr 09, 2007 6:41 pm

Hi Marc,

Here are the CM9_R1 settings (only for use in the CM GUI!). All are default except:

Material/Positional = -7
Selective Search = 12
Transposition Table = 128MB (this is what I use for analysis, you can go smaller for blitz games)

Own/Opp Control of Center = 116
Own/Opp Mobility = 143
Own/Opp King Safety = 166
Own/Opp Passed Pawns = 137
Own/Opp Pawn Weakness = 137

Own Queen = 10.0
Opp Queen = 9.9
Own/Opp Rook = 5.4
Own/Opp Bishop = 3.4
Own/Opp Knight = 3.3
Own/Opp Pawn = 1.1

The King has always been an excellent tactical engine and brilliant at mate-finding.

Enjoy!

jm

bob
Posts: 20555
Joined: Mon Feb 27, 2006 6:30 pm
Location: Birmingham, AL

Re: Test Position

Post by bob » Mon Apr 09, 2007 7:12 pm

Crafty likes Rf6 instantly and the score climbs each iteration. Looks completely fatal for black.

Post Reply