Author: Frank E. Oldham
Date: 18:19:53 09/01/04
Go up one level in this thread
On September 01, 2004 at 19:53:53, stuart taylor wrote:
>On August 31, 2004 at 22:18:40, Vincent Lejeune wrote:
>
>>On August 31, 2004 at 21:58:14, stuart taylor wrote:
>>
>>>On August 31, 2004 at 21:31:33, Vincent Lejeune wrote:
>>>
>>>>
>>>>>[d]2kr3r/ppp1qpp1/2p5/2b2b1p/2P1pPn1/1P2P1PP/PBQPB3/RN2K2R b KQ - 0 12
>>>>>
>>>>>12.h4!!
>>>>
>>>>AMD barton @3000+
>>>>
>>>>Time Depth Score Positions Moves
>>>>0:00 1/8 -0.77 176924 12...Nf6 13.a3 Qe6 14.b4 Be7 15.Bf1
>>>> Qd7 16.Nc3
>>>>0:01 1/9 -0.82 427947 12...Nf6 13.a3 Qe6 14.b4 Be7 15.Bf1
>>>> Qd7 16.Nc3 Kb8
>>>>0:06 1/10 -0.78 1327528 12...Nf6 13.a3 Qe6 14.Bf1 Be7 15.Nc3
>>>> Kb8 16.O-O-O Bc5 17.Kb1
>>>>0:16 1/11 -0.71 4242963 12...Nf6 13.a3 Qe6 14.Bf1 Be7 15.Nc3
>>>> Kb8 16.O-O-O c5 17.Bg2 h4
>>>>0:33 1/11 -0.92 8541987 12...h4 13.Bxg4 Bxg4 14.hxg4 hxg3
>>>> 15.Rg1 Rh2 16.Qc3 Qh4 17.Qxg7 Rh1
>>>> 18.Rxh1 Qxh1+ 19.Ke2 Bxe3
>>>>1:21 1/12 -1.75 20461179 12...h4 13.Bxg4 Bxg4 14.hxg4 hxg3
>>>> 15.Rg1 Rh2 16.Nc3 Bxe3 17.O-O-O
>>>> Bxg1 18.Rxg1 Rdxd2 19.Qxd2 Rxd2
>>>> 20.Kxd2 Qd6+ 21.Kc2 Qxf4
>>>>2:43 1/13 -1.72 42207857 12...h4 13.Bxg4 Bxg4 14.hxg4 hxg3
>>>> 15.Rg1 Rh2 16.Nc3 Rdxd2 17.Qxd2
>>>> Rxd2 18.Kxd2 Qd8+ 19.Ke1 Bxe3 20.Rg2
>>>> Bf2+ 21.Kf1 Qd2 22.Rd1 Qxb2 23.Nxe4
>>>> Qxa2 24.Nxf2 gxf2
>>>
>>
>>It's the king 3.33 (chessmaster 10th edition) and an AMD barton @ 180 mhz*12
>>(2.16 Ghz)
>>
>>It play 13.Bxg4 in the mainline because it see 13.hxg4 is completely losing
>>
>>more later ...
>
>I would be very interested in the "more later", if possible. Maybe the computers
>which get h4 quick sometimes change their mind, and then come back again to h4
>with much more certainty. I've seen that happen from this position.
>
>It might even be that there is stronger variation against 13.Bxg4, and best
>would be 13.Rg1.
>
>I'm also still interested about 10....Ng4 and 11....h5, although I doubt very
>much in a computer ever playing them, even if they are tactically very great.
>>
>>>Huh? That's quick! However, I would be even more impressed if I would see that
>>>it found 14....Rh1 or 15....Rh1 from the same position in a short time.
>>>Could you test it for that?
>>>And what kind of AMD and Mhz are you using?
>>>
>>>
>>>[Later, I would be staggeringly fascinated to know if your computer EVER arrives
>>>at the (possibly best moves) of 10...Ng4 and/or 11...h5. If so, I might even
>>>propose that computers have almost solved chess!]
>>>
>>>Thanks!
>>>S.Taylor
from the position two plies earlier
2kr3r/ppp1qppp/2p5/2b2b2/2P1pPn1/1P2P1P1/PBQPB2P/RN2K2R b KQ
crafty19.16 eventually selects 11...h5
it first sees it in ply 16, with eval -0.46, not quite high enough to depose
Rhg8
but in ply 17 h5 wins out, eval -0.65 and improving thru ply 18
15-> 7:55 -0.29 1. ... Nf6 2. a3 Bd6 3. O-O h5 4. b4
c5 5. Bxf6 Qxf6 6. Nc3 Qg6 7. Rfd1
h4 8. Nb5 hxg3 9. Nxa7+ Kb8
16 13:04 -0.27 1. ... Nf6 2. a3 Bd6 3. O-O h5 4. b4
c5 5. Nc3 h4 6. g4 Nxg4 7. Bxg4 Bxg4
8. Nxe4 Rh5 9. d4 cxb4 10. axb4
16 31:51 -0.42 1. ... h5 2. Bxg7 Rh7 3. Qc3 Bb4 4.
Qb2 Rxg7 5. Qxg7 Nxe3 6. Qb2 Ng2+ 7.
Kf1 Bh3 8. a3 Nxf4+ 9. Ke1 Nxe2 10.
axb4
16 39:50 -0.44 1. ... Rhg8 2. a3 g5 3. Bxg4 Bxg4 4.
b4 gxf4 5. bxc5 fxe3 6. dxe3 Rd1+ 7.
Qxd1 Bxd1 8. Kxd1 Qxc5 9. Nd2 Qxe3
10. Re1 Qb6
16-> 39:50 -0.44 1. ... Rhg8 2. a3 g5 3. Bxg4 Bxg4 4.
b4 gxf4 5. bxc5 fxe3 6. dxe3 Rd1+ 7.
Qxd1 Bxd1 8. Kxd1 Qxc5 9. Nd2 Qxe3
10. Re1 Qb6 (s=3)
17 86:06 -0.46 1. ... Rhg8 2. O-O Qe6 3. Bc3 g5 4.
Bxg4 Bxg4 5. fxg5 Bf3 6. Bf6 Be7 7.
Bxe7 Qxe7 8. Nc3 Qe5 9. a4 Kb8 10.
c5 Qxc5 (s=2)
17 124:29 -0.65 1. ... h5 2. Bxg7 Rh7 3. Qb2 Qe6 4.
Bxg4 Bxg4 5. Bf6 Rd6 6. Be5 Rd3 7.
Nc3 Bf3 8. Rf1 Qf5 9. b4 Be7 10. c5
17-> 134:45 -0.65 1. ... h5 2. Bxg7 Rh7 3. Qb2 Qe6 4.
Bxg4 Bxg4 5. Bf6 Rd6 6. Be5 Rd3 7.
Nc3 Bf3 8. Rf1 Qf5 9. b4 Be7 10. c5
(s=2)
18 219:06 -0.76 1. ... h5 2. Bxg7 Rh7 3. Qb2 Qe6 4.
Bxg4 Bxg4 5. Bf6 Rd6 6. Be5 Rd3 7.
Nc3 Bf3 8. Rf1 Qh3 9. Na4 Bb4 10. Bc3
Bxc3 11. Nxc3 Qxh2
18-> 275:19 -0.76 1. ... h5 2. Bxg7 Rh7 3. Qb2 Qe6 4.
Bxg4 Bxg4 5. Bf6 Rd6 6. Be5 Rd3 7.
Nc3 Bf3 8. Rf1 Qh3 9. Na4 Bb4 10. Bc3
Bxc3 11. Nxc3 Qxh2
Frank
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.