Author: Jeremiah Penery
Date: 15:43:02 09/17/03
Go up one level in this thread
On September 17, 2003 at 10:57:15, Uri Blass wrote:
>On September 17, 2003 at 09:13:14, Joachim Rang wrote:
>
>>Junior 8 is even more pessimistic:
>>
>>Turgut,T - Glazman,M
>>5qk1/2p2np1/4p1r1/p1NpB1Pp/1Pb1pP1P/P3P3/3Q3R/4K3 w - - 0 1
I also get Bxc7 here, with kind of a pointless line:
14-> 3:37 0.03 1. Bxc7 axb4 2. Qxb4 Qe7 3. Be5 Kh7
4. a4 Nd8 5. Rf2 Qf8 6. Bd4 Nc6 7.
Qb7 Ne7
>I do not like the move Bxc7
>
>It let black to play e5 and to free the rook.
>
>I did not analyze the position enough to know but the question is if white can
>in some way use the fact that the black rook can move and even sacrifice more
>material to prevent the rook to move so white can win the game.
>
>In that case programs may say -1 for white for a lot of time but white
>can wi the game.
>
>Here is another position that did not happen in the game
>
>[D]r5k1/p1pp1rpp/b1n1p3/2P2q2/1P3P2/P1Q1P1P1/1B2NKB1/7R w - - 0 23 bm g4
>
>programs like Nd4 with positive score at small depth and only after it fail low
>they can find g4.
White(1): analyze
Analyze Mode: type "exit" to terminate.
clearing hash tables
time surplus 0.00 time limit 30.00 (3:30)
depth time score variation (1)
1 0.01 1.22 1. Bxc6 dxc6
1-> 0.01 1.22 1. Bxc6 dxc6
2 0.01 1.22 1. Bxc6 dxc6
2-> 0.02 1.22 1. Bxc6 dxc6
3 0.02 1.13 1. Bxc6 dxc6 2. Rxh7 Bxe2
3 0.03 1.52 1. Rxh7 Qf6 2. Bxc6 Qxc3 3. Nxc3 dxc6
3-> 0.03 1.52 1. Rxh7 Qf6 2. Bxc6 Qxc3 3. Nxc3 dxc6
4 0.04 -- 1. Rxh7
4 0.04 -0.60 1. Rxh7 Qxh7 2. Bxc6 Qh2+ 3. Bg2 Bxe2
4 0.05 1.13 1. Bxc6 dxc6 2. Rxh7 Bxe2
4-> 0.05 1.13 1. Bxc6 dxc6 2. Rxh7 Bxe2
5 0.06 -- 1. Bxc6
5 0.09 -0.41 1. Bxc6 dxc6 2. b5 Bxb5 3. Rxh7 Bxe2
5 0.11 -0.19 1. g4 Qd3 2. Qxd3 Bxd3 3. g5
5-> 0.26 -0.19 1. g4 Qd3 2. Qxd3 Bxd3 3. g5
6 0.29 -- 1. g4
6 0.31 -1.35 1. g4 Qxg4 2. Bf3 Bxe2 3. Bxg4 Bxg4
6 0.34 -0.35 1. Bxc6 dxc6 2. Nd4 Qg4 3. Rh4 Qg6
4. Nxc6
6-> 0.55 -0.35 1. Bxc6 dxc6 2. Nd4 Qg4 3. Rh4 Qg6
4. Nxc6
7 0.67 -- 1. Bxc6
7 0.74 -0.90 1. Bxc6 dxc6 2. Nd4 Qe4 3. Nf3 Kf8
4. f5
7 0.84 -0.03 1. Nd4 Nxd4 2. Qxd4 Qc2+ 3. Kg1 Bc4
4. Be4 e5 5. Bxc2 exd4 6. Rxh7 dxe3
7 1.04 0.00 1. g4 Qxg4 2. Bf3 Bxe2 3. Bxg4 Bxg4
4. Ke1
7-> 1.42 0.00 1. g4 Qxg4 2. Bf3 Bxe2 3. Bxg4 Bxg4
4. Ke1
8 1.72 -0.28 1. g4 Qxg4 2. Bf3 Qf5 3. Bxc6 dxc6
4. Rxh7 Bxe2
8 1.96 -0.03 1. Nd4 Nxd4 2. Qxd4 Qc2+ 3. Kg1 Bc4
4. Be4 e5 5. Bxc2 exd4 6. Rxh7 dxe3
8-> 3.65 -0.03 1. Nd4 Nxd4 2. Qxd4 Qc2+ 3. Kg1 Bc4
4. Be4 e5 5. Bxc2 exd4 6. Rxh7 dxe3
9 3.99 -0.03 1. Nd4 Nxd4 2. Qxd4 Qc2+ 3. Kg1 Bc4
4. Be4 e5 5. Bxc2 exd4 6. Rxh7 dxe3
9-> 9.82 -0.03 1. Nd4 Nxd4 2. Qxd4 Qc2+ 3. Kg1 Bc4
4. Be4 e5 5. Bxc2 exd4 6. Rxh7 dxe3
10 11.08 -0.29 1. Nd4 Nxd4 2. Qxd4 Qc2+ 3. Kg1 Bd3
4. f5 Rf6 5. Bxa8 c6 6. Qxf6 gxf6 7.
fxe6 Qxb2 8. exd7
10 13.30 -0.04 1. g4 Qxg4 2. Ng3 e5 3. Bxc6 exf4 4.
exf4 dxc6 5. Rxh7 Kxh7
10-> 23.66 -0.04 1. g4 Qxg4 2. Ng3 e5 3. Bxc6 exf4 4.
exf4 dxc6 5. Rxh7 Kxh7
11 41.18 0.04 1. g4 Qxg4 2. Ng3 Rb8 3. Rxh7 Ne7 4.
Be4 Kf8 5. Kg2 Ng8 6. Qe5
11-> 41.19 0.04 1. g4 Qxg4 2. Ng3 Rb8 3. Rxh7 Ne7 4.
Be4 Kf8 5. Kg2 Ng8 6. Qe5
12 1:11 -0.08 1. g4 Qxg4 2. Ng3 e5 3. Bf3 Qe6 4.
Rxh7 Kxh7 5. Qc2+ Kg8 6. Bxc6 Bc4 7.
Bxa8 exf4
12 2:28 -0.02 1. Bxc6 dxc6 2. Nd4 Qe4 3. Rh4 Rf6
4. Qb3 h6 5. Nf3 Bc4 6. Nd2 Bxb3 7.
Nxe4
After forcing Bxc6 dxc6, I get this:
13-> 2:20 -0.01 2. Nd4 Qe4 3. Rh4 Rd8 4. Nf3 Rf6 5.
Ng5 Qb1 6. Kg2 h6 7. Rh1 Rd1 8. Rh4
Forcing g4 Qxg4, this:
12-> 7:25 -0.09 2. Ng3 e5 3. Bd5 Nd4 4. Rh5 Rf8 5.
Rxe5 Ne6 6. Rh5 Rf6 7. Bxe6+ Qxe6 8.
Kf3
I don't really know what it's seeing here.
This is modified Crafty 19.3(?) with MPC, futility, and a bunch of other stuff I
added over time, since 18.15.
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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