Author: Robert Hyatt
Date: 12:28:36 09/07/99
Go up one level in this thread
On September 07, 1999 at 11:48:02, blass uri wrote: >On September 07, 1999 at 10:51:41, Robert Hyatt wrote: > >>On September 07, 1999 at 09:20:05, blass uri wrote: >> >>>On September 06, 1999 at 17:52:31, James T. Walker wrote: >>> >>>>Here is game 7 as mentioned in the subject line. This is an interesting game >>>>because of the uneven material of Q vs RBN. Usually the 3 pieces win this type >>>>game. The 3 pieces in the hands of a computer become a multi-arm monster. >>>>Crafty now leads the match 5-2. >>>> >>>> >>>> >>>> >>>>[Event "40/2"] >>>>[Site "?"] >>>>[Date "1999.09.06"] >>>>[Round "7"] >>>>[White "Chess Tal II"] >>>>[Black "Crafty 16.15"] >>>>[Result "0-1"] >>>> >>>>1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 exd4 8. >>>>Re1 d5 9. Nc3 dxc3 10. Bxd5 Bb7 11. Bg5 Be7 12. Rxe4 f6 13. Bxf6 gxf6 14. Ng5 >>>>fxg5 15. Qh5+ Kd7 16. Be6+ Kd6 17. Qh3 Nb4 18. Rd1+ Kc6 19. Rxd8 Raxd8 >>> >>>r2R3r/1bp1b2p/p1k1B3/1p4p1/1n2R3/2p4Q/PPP2PPP/6K1 b - - 0 1 >>> >>>I do not understand what is the reason that crafty did not play 19...Rhxd8 >>> >>>My crafty16.6 as an engine for Junior wants to play Rhxd8 and after Raxd8? Bd7+ >>>there is a significant drop in the evaluation. >>> >>>Uri >> >> >>This is probably just a difference between 16.6 and the later versions. My >>current version likes Raxd8 with a score of +1.08 after 30 secondson my >>notebook... and the score doesn't change much as time wears on. ie +1.00 at >>depth=9,etc... > >I see that it is a tactical problem for crafty. >If I give crafty16.6(engine for Junior) 2 options then it can see big difference >between Rhxd8 and Raxd8 only at depth 11(Rhxd8 is 1.83 pawns advantage for black >and Raxd8 only 0.22) > >Uri I ran them to depth=12, and the scores didn't change. Again, this is likely just a big eval difference between 16.6 and the latest 16.18. That is why 16.6 is "old". :)
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