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Subject: Re: Position from game 1 of first DB-Kasparov match

Author: Dave Gomboc

Date: 21:35:44 01/18/00

Go up one level in this thread


On January 18, 2000 at 11:26:43, Dave Gomboc wrote:

>which still seems weird to me :) but in any case Black seems to be picking up a
>pawn no matter what White does, so Nb2 may not be horrible.  Hey, it just
>occured to me that I had logging on.  Here's the first search (for 27. ...c5).
>Scores are always from White's perspective in the log, I think.

That was wrong.  The scores are from the perspective of the player to move.

>So, 27...c5 may still be the move you're looking for, Amir.  I guess it's time
>to check out move 32.

Here's a search on move 32.

[D]3B1bk1/1r5p/r2pb1p1/2p1np2/N7/1PP5/P1B2RPP/1R4K1 w - - 0 32

middle-game phase
              clearing hash tables
              time surplus   0.09  time limit 0.09 (0.54)
         nss  depth   time  score   variation (1)
                7     1.18   0.07   32. Re1 c4 33. Rb1 Ra8 34. Bg5 Nd3
                                    35. Bxd3 cxd3
                7     3.51   0.15   32. Re2 Bc4 33. Ree1 Bd3 34. Rbc1 Bg7
                                    35. c4
         (2)    7->   3.95   0.15   32. Re2 Bc4 33. Ree1 Bd3 34. Rbc1 Bg7
                                    35. c4
                8     5.89  -0.01   32. Re2 Bd7 33. Rbe1 Bxa4 34. bxa4
                                    Be7 35. Bxe7 Rxe7 36. Bb3+ Kg7 37.
                                    Kf2
                8    11.20   0.03   32. Bg5 Bg7 33. Re2 Bc4 34. Re3 h6
                                    35. Bf4 Ng4
         (3)    8->  13.37   0.03   32. Bg5 Bg7 33. Re2 Bc4 34. Re3 h6
                                    35. Bf4 Ng4
         (2)    9    18.81  -0.01   32. Bg5 Bd7 33. Re1 Bg7 34. Rfe2 Bxa4
                                    35. bxa4 h6 36. Bf4 Rb2 <HT>
                9->  27.92  -0.01   32. Bg5 Bd7 33. Re1 Bg7 34. Rfe2 Bxa4
                                    35. bxa4 h6 36. Bf4 Rb2 <HT>
               10    45.61   0.01   32. Bg5 Bg7 33. Re2 h6 34. Bf4 c4 35.
                                    Ree1 Re7 36. bxc4 Bxc4 37. Rb8+ Bf8
               10->   1:01   0.01   32. Bg5 Bg7 33. Re2 h6 34. Bf4 c4 35.
                                    Ree1 Re7 36. bxc4 Bxc4 37. Rb8+ Bf8
               11     1:48  -0.07   32. Bg5 Bd7 33. Rff1 Ra8 34. Bf4 Re8
                                    35. b4 h6 36. Bb3+ Kh8 37. Bd5 Rbb8
               11->   2:41  -0.07   32. Bg5 Bd7 33. Rff1 Ra8 34. Bf4 Re8
                                    35. b4 h6 36. Bb3+ Kh8 37. Bd5 Rbb8
               12     3:14  -0.06   32. Bg5 Bd7 33. Rff1 Ra8 34. Bf4 Re8
                                    35. Rfe1 Bg7 36. b4 cxb4 37. cxb4 Rb5
                                    38. Nc3
               12->   4:32  -0.06   32. Bg5 Bd7 33. Rff1 Ra8 34. Bf4 Re8
                                    35. Rfe1 Bg7 36. b4 cxb4 37. cxb4 Rb5
                                    38. Nc3
               13     6:06  -0.06   32. Bg5 Bd7 33. Rff1 Ra8 34. Bf4 Bg7
                                    35. Rfe1 Bb5 36. Rbd1 Re8 37. b4 cxb4
                                    38. Rxd6
               13->   8:25  -0.06   32. Bg5 Bd7 33. Rff1 Ra8 34. Bf4 Bg7
                                    35. Rfe1 Bb5 36. Rbd1 Re8 37. b4 cxb4
                                    38. Rxd6
               14    15:50  -0.17   32. Bg5 Bd7 33. Re1 c4 34. Bf4 Ra5
                                    35. Rfe2 Nd3 36. Rf1 Bg7 37. Bxd6 Rd5
                                    38. Be7 Bxa4 39. bxa4 Bxc3
         (2)   14->  34:08  -0.17   32. Bg5 Bd7 33. Re1 c4 34. Bf4 Ra5
                                    35. Rfe2 Nd3 36. Rf1 Bg7 37. Bxd6 Rd5
                                    38. Be7 Bxa4 39. bxa4 Bxc3
               15    55:25  -0.23   32. Bg5 Bd7 33. Rff1 c4 34. Rfd1 Bg7
                                    35. Bf4 h6 36. Be3 Nf7 37. Bd2 Rc7
                                    38. Re1 cxb3 39. axb3 Bxa4 40. bxa4
                                    Bxc3
               15->  85:56  -0.23   32. Bg5 Bd7 33. Rff1 c4 34. Rfd1 Bg7
                                    35. Bf4 h6 36. Be3 Nf7 37. Bd2 Rc7
                                    38. Re1 cxb3 39. axb3 Bxa4 40. bxa4
                                    Bxc3
               16   230:39  -0.32   32. Bg5 c4 33. Bd2 Bd7 34. Rff1 Bc6
                                    35. Bg5 Bd7 36. Rfd1 Bg7 37. Bf4 h6
                                    38. Rd4 Bb5 <HT>
               16-> 348:36  -0.32   32. Bg5 c4 33. Bd2 Bd7 34. Rff1 Bc6
                                    35. Bg5 Bd7 36. Rfd1 Bg7 37. Bf4 h6
                                    38. Rd4 Bb5 <HT>
               17   568:54  -0.34   32. Bg5 c4 33. Bf4 Bd7 34. Rff1 Bg7
                                    35. Rfd1 Bb5 36. Bg5 Nf7 37. Bd2 Rc7
                                    38. Re1 Ra5 39. Re6 cxb3 40. axb3 Bxa4
                                    41. bxa4 Bxc3

So far, the scores are backing up Amir's assertion that 32. Re1 was a mistake.
Still, I'm a bit puzzled... here's the position after the last PV:

[D]6k1/2r2n1p/3pR1p1/r4p2/P7/2b5/2BB2PP/1R4K1 w - - 0 42

Does that really look like it's only -0.3ish for White?

I think I'll let this position crunch overnight.  It would be nice if Ferret (or
something else that does some bigtime extending) took a swing at this position,
but I think Bruce is probably still busy doing some Nolot testing.

Dave



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