Author: John Merlino
Date: 08:55:36 11/09/04
Go up one level in this thread
On November 09, 2004 at 09:22:41, Dom Leste wrote:
>Here Pro Deo Search & Destroy played 29. Nf5! Is Be3 equally good? Probably yes
>if your engine more positionally inclined ;) Nf5 or Be3 Any takers :)
>
>[D]r3k3/2q2pb1/pnbpn1p1/8/2pPP1Nr/2P3N1/1P1B1Q1P/R2BKR2 w q - 0 1
>
>
>[Event "Arena tournament"]
>[Site "USER"]
>[Date "2004.11.09"]
>[Round "4"]
>[White "Aristarch 4.50"]
>[Black "Pro Deo S&D67"]
>[Result "1-0"]
>[ECO "B02"]
>[Opening "Alekhine"]
>[Time "23:35:34"]
>[Variation "Sämisch Attack"]
>[TimeControl "1800+10"]
>
>1.e4 Nf6 2.e5 Nd5 3.Nc3 e6 4.Nxd5 exd5 5.d4 d6 6.Bf4 dxe5 7.dxe5 c5 8.Nf3 Nc6
>9.c3 h6 10.Bd3 Be6 11.h3 Be7 12.Qd2 Qb6 13.O-O Rd8 14.Rfd1 g5 15.Bg3 d4 16.Be4
>Rg8 17.Qe2 g4 18.hxg4 Rxg4 19.cxd4 cxd4 20.Kh1 Nb4 21.Nh2 Rg7 22.a3 d3 23.Bxd3
>Rxd3 24.Rxd3 Nxd3 25.Qxd3 Qxb2 26.Rb1 Qxa3 27.Qb5+ Kf8 28.Qxb7 Kg8 29.Qa8+ Bf8
>30.Qd8 Rg5 31.Rd1 Kh7 32.Rb1 Bf5 33.Re1 Be7 34.Qd5 Bg6 35.Nf3 Rh5+ 36.Kg1 Bc5
>37.Bh4 Qb4 38.Rf1 Bf8 39.Bf6 Bg7 40.Bxg7 Kxg7 41.Qd7 a5 42.e6 Qb5 43.Rd1 Kg8
>44.Nh4 fxe6 {Black resigns} 1-0
CMX_SKR thinks that Be2!? is best (but only after a relatively long think):
Time Depth Score Positions Moves
0:01 1/7 0.99 149493 1.Nf5 gxf5 2.Qxh4 fxg4 3.d5 Nxd5
4.exd5 Bxd5 5.Bxg4
0:02 1/8 0.69 322470 1.Nf5 gxf5 2.Qxh4 fxg4 3.Bxg4 Qd8
4.Qxd8+ Nxd8 5.Bf5
0:03 1/8 0.88 550117 1.Nf6+ Bxf6 2.Qxf6 Rh7 3.d5 Nd7
4.Qf2 Nec5 5.Be2 Bb5
0:13 1/9 0.81 2087545 1.Nf6+ Bxf6 2.Qxf6 Rxh2 3.Bg4 Qe7
4.Qxe7+ Kxe7 5.d5 Bxd5 6.exd5 Nxd5
7.Rf2 Rxf2 8.Kxf2 Nf6
0:25 1/9 0.99 4076579 1.Be3 Qe7 2.d5 Nxd5 3.exd5 Bxd5
4.Nf6+ Bxf6 5.Qxf6 Qxf6 6.Rxf6
Rxh2 7.Rf2 Bg2
0:48 2/10 1.11 7706825 1.Be3 Bb5 2.Nf6+ Bxf6 3.Qxf6 Rh7
4.Bg4 Nd7 5.Qf2 Rb8 6.h3 a5
2:09 2/11 0.79 21498520 1.Be3 Qe7 2.d5 Nxd5 3.exd5 Bxd5
4.Qe2 Kf8 5.Ra5 Qb7 6.Qd2 Nc5 7.Nf6
3:32 2/11 0.94 35250622 1.Ra5 Qe7 2.Be2 Bb5 3.d5 Nc5 4.Bg5
Qxg5 5.Qxf7+ Kd8 6.Qxg7 Qc1+ 7.Kf2
Qxb2
5:47 2/11 0.99 57181109 1.Nf5 gxf5 2.Qxh4 fxg4 3.Bxg4 Nf8
4.Bf5 Rb8 5.Rxa6 Ng6 6.Qg5
6:38 2/12 0.94 65848190 1.Nf5 gxf5 2.Qxh4 fxg4 3.Bxg4 Qe7
4.Qxe7+ Kxe7 5.d5 Nxd5 6.exd5 Bxd5
7.Ra5 Bb7 8.Bf3 Rb8 9.Bxb7 Rxb7
10:00 2/12 1.05 99195582 1.Be2 Qe7 2.d5 Nxd5 3.exd5 Bxd5
4.Ne3 Nf4 5.Rg1 Bh6 6.Nxd5 Nxd5
7.Bxh6 Rxh6 8.Qf3 Qe5
24:24 3/13 1.07 242640517 1.Be2 d5 2.e5 Rh3 3.Nf6+ Bxf6 4.Bg4
Rh7 5.Qxf6 Nd7 6.Qf2 Rb8 7.Bxe6
fxe6 8.Bg5
I suspect that Pro Deo would also give up on Nf5, given enough time.
jm
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