Author: Robert Hyatt
Date: 08:48:42 08/19/04
Go up one level in this thread
On August 19, 2004 at 06:43:10, Jan K. wrote:
>[D]1nr5/2rbkppp/p3p3/Np6/2PRPP2/8/PKP1B1PP/3R4 b - - 0 1
>
>Hi, when evaluating this position...what is the difference in scores between
>e6e5 and b8c6 when doing 12 ply search with your engines? I have a problem to
>find e6e5 unless i turn off some untuned parts of my evaluation...but even then
>it seems to get only +0.1 better score than b8c6. Which are the most importnant
>positional factors here? Thanks.
Crafty bounces back and forth. Here is the output:
12 23.29 1.12 1. ... e5 2. fxe5 Be6 3. Ka1 bxc4 4.
c3 Nd7 5. Rd6 Nxe5 6. Rxa6 Rd7 7. Rd4
Rxd4 8. cxd4
12 33.59 1.07 1. ... Nc6 2. Nxc6+ Bxc6 3. c3 bxc4
4. Rxc4 a5 5. g3 f5 6. e5 Kf8 7. Rc5
Bd5 8. Rxc7 Rxc7
12-> 33.59 1.07 1. ... Nc6 2. Nxc6+ Bxc6 3. c3 bxc4
4. Rxc4 a5 5. g3 f5 6. e5 Kf8 7. Rc5
Bd5 8. Rxc7 Rxc7
13 39.42 1.07 1. ... Nc6 2. Nxc6+ Bxc6 3. c3 bxc4
4. Rxc4 a5 5. g3 f5 6. e5 Bd5 7. Rxc7+
Rxc7 8. h4 Rb7+ 9. Ka3 h6 10. c4
13 48.44 0.96 1. ... e5 2. fxe5 Be6 3. Ka1 bxc4 4.
a3 Nd7 5. Rd6 Nxe5 6. Rxa6 Rd7 7. Rxd7+
Bxd7 8. Rb6 Ba4
13-> 49.01 0.96 1. ... e5 2. fxe5 Be6 3. Ka1 bxc4 4.
a3 Nd7 5. Rd6 Nxe5 6. Rxa6 Rd7 7. Rxd7+
Bxd7 8. Rb6 Ba4 (s=4)
14 52.90 0.97 1. ... e5 2. fxe5 Be6 3. c3 bxc4 4.
Kc2 Nd7 5. Rd6 Nxe5 6. Rxa6 Rb8 7.
Bh5 Rd7 8. Nc6+ Nxc6 9. Rxc6 (s=3)
14-> 56.69 0.97 1. ... e5 2. fxe5 Be6 3. c3 bxc4 4.
Kc2 Nd7 5. Rd6 Nxe5 6. Rxa6 Rb8 7.
Bh5 Rd7 8. Nc6+ Nxc6 9. Rxc6
15 1:11 0.69 1. ... e5 2. fxe5 Be6 3. c3 bxc4 4.
Kc2 Nc6 5. Nxc6+ Rxc6 6. Rd6 a5 7.
Rxc6 Rxc6 8. Rd4 Rc5 9. Kb2 Rxe5 10.
Bxc4 Bxc4 11. Rxc4
15-> 1:14 0.69 1. ... e5 2. fxe5 Be6 3. c3 bxc4 4.
Kc2 Nc6 5. Nxc6+ Rxc6 6. Rd6 a5 7.
Rxc6 Rxc6 8. Rd4 Rc5 9. Kb2 Rxe5 10.
Bxc4 Bxc4 11. Rxc4
16 1:38 0.69 1. ... e5 2. fxe5 Be6 3. c3 bxc4 4.
Kc2 Nc6 5. Nxc6+ Rxc6 6. Rd6 a5 7.
Rxc6 Rxc6 8. Rd4 Rc5 9. h4 Rxe5 10.
Bxc4 Bxc4 11. Rxc4
16-> 1:48 0.69 1. ... e5 2. fxe5 Be6 3. c3 bxc4 4.
Kc2 Nc6 5. Nxc6+ Rxc6 6. Rd6 a5 7.
Rxc6 Rxc6 8. Rd4 Rc5 9. h4 Rxe5 10.
Bxc4 Bxc4 11. Rxc4
17 3:18 0.62 1. ... e5 2. fxe5 Be6 3. c3 bxc4 4.
Ka1 Nc6 5. Nxc6+ Rxc6 6. Rd6 a5 7.
Rxc6 Rxc6 8. Rd4 Rc5 9. Kb2 Rb5+ 10.
Ka3 Rxe5 11. Bxc4 Bxc4 12. Rxc4
17-> 3:43 0.62 1. ... e5 2. fxe5 Be6 3. c3 bxc4 4.
Ka1 Nc6 5. Nxc6+ Rxc6 6. Rd6 a5 7.
Rxc6 Rxc6 8. Rd4 Rc5 9. Kb2 Rb5+ 10.
Ka3 Rxe5 11. Bxc4 Bxc4 12. Rxc4
time=3:47 cpu=397% mat=1 n=2107177702 fh=92% nps=9.28M
ext-> chk=70515808 cap=6843895 pp=1578364 1rep=1719086 mate=74677
predicted=0 nodes=2107177702 evals=630286679 50move=0
endgame tablebase-> probes=0 hits=0
SMP-> split=49364 stop=4422 data=22/128 cpu=15:01 elap=3:47
Black(1): e5
Settles on e5 as it gets deeper...
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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