Author: Mike Byrne
Date: 21:02:01 07/20/03
http://f11.parsimony.net/forum16635/messages/51373.htm
"Deep Sjeng claims to be the only program which finds Nxc3+ immediately.
Can you disprove the claim?"
GM Alterman,Boris - Deep Sjeng
WCCC Ehibition Maastricht, 09.07.2002
[d]2rq1rk1/pb1pn1pp/1p2p3/2pn1p2/3P2P1/P1PBPN1P/1P1NQP1R/1K1R4 b - - 0 15 ; bm
Nxc3 (or so they say)
Crafty 19.04 (krafty byrne)
Black(1): go
clearing hash tables
time surplus 29.87 time limit 1:00 (1:00)
depth time score variation (1)
1 0.00 0.36 1. ... cxd4 2. exd4
1-> 0.02 0.36 1. ... cxd4 2. exd4
2 0.02 0.07 1. ... cxd4 2. exd4 Qc7 3. gxf5 exf5
2-> 0.02 0.07 1. ... cxd4 2. exd4 Qc7 3. gxf5 exf5
3 0.04 0.06 1. ... cxd4 2. exd4 Nf4 3. Qe3 Nxd3
4. Qxd3
3-> 0.05 0.06 1. ... cxd4 2. exd4 Nf4 3. Qe3 Nxd3
4. Qxd3 (s=2)
4 0.05 0.14 1. ... cxd4 2. Nxd4 Qc7 3. f4 Nc6 4.
Nxc6 Bxc6 5. gxf5 exf5
4-> 0.07 0.14 1. ... cxd4 2. Nxd4 Qc7 3. f4 Nc6 4.
Nxc6 Bxc6 5. gxf5 exf5
5 0.08 0.14 1. ... cxd4 2. Nxd4 Qc7 3. f4 Nc6 4.
Nxc6 Bxc6 5. gxf5 exf5
5-> 0.10 0.14 1. ... cxd4 2. Nxd4 Qc7 3. f4 Nc6 4.
Nxc6 Bxc6 5. gxf5 exf5
6 0.21 -0.04 1. ... cxd4 2. Nxd4 Rxc3 3. gxf5 Rxa3
4. fxe6 Ra4
6-> 0.27 -0.04 1. ... cxd4 2. Nxd4 Rxc3 3. gxf5 Rxa3
4. fxe6 Ra4
7 0.43 -0.03 1. ... cxd4 2. Nxd4 Rxc3 3. Nc4 Ba6
4. gxf5 Bxc4 5. Bxc4
7 0.52 -0.22 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. cxd4 Nc3+ 5. Rxc3 Rxc3 6. gxf5 exf5
7-> 0.54 -0.22 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. cxd4 Nc3+ 5. Rxc3 Rxc3 6. gxf5 exf5
(s=2)
8 0.61 -0.22 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. cxd4 Nc3+ 5. Rxc3 Rxc3 6. gxf5 exf5
8-> 0.90 -0.22 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. cxd4 Nc3+ 5. Rxc3 Rxc3 6. gxf5 exf5
(s=3)
9 1.07 -0.28 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. Nxd4 Nxc3+ 5. Rxc3 Rxc3 6. Nb5 Rc5
7. gxf5 exf5 8. Nxa7 (s=2)
9-> 1.57 -0.28 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. Nxd4 Nxc3+ 5. Rxc3 Rxc3 6. Nb5 Rc5
7. gxf5 exf5 8. Nxa7 (s=3)
10 2.10 -0.45 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. cxd4 Nc3+ 5. Rxc3 Rxc3 6. gxf5 exf5
7. Bc4+ d5 8. Bb3 (s=2)
10-> 3.00 -0.45 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. cxd4 Nc3+ 5. Rxc3 Rxc3 6. gxf5 exf5
7. Bc4+ d5 8. Bb3 (s=2)
11 4.13 -0.81 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. cxd4 Nc3+ 5. Rxc3 Rxc3 6. gxf5 exf5
7. Ne5 Rxa3 8. Qh5
11-> 5.94 -0.81 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. cxd4 Nc3+ 5. Rxc3 Rxc3 6. gxf5 exf5
7. Ne5 Rxa3 8. Qh5 (s=3)
12 10.05 -0.74 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. Nxd4 Qc7 5. Nf1 Nxc3+ 6. Ka1 Be4
7. f3 Qd6 8. Rxc3 Rxc3 9. fxe4 Qxa3+
(s=2)
12-> 14.91 -0.74 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. Nxd4 Qc7 5. Nf1 Nxc3+ 6. Ka1 Be4
7. f3 Qd6 8. Rxc3 Rxc3 9. fxe4 Qxa3+
(s=3)
13 21.61 -0.74 1. ... Nxc3+ 2. bxc3 Nd5 3. Rc1 cxd4
4. Nxd4 Qc7 5. Nf1 Nxc3+ 6. Ka1 Be4
7. Qd2 Qc5 8. Rxc3 Qxc3+ 9. Qxc3 Rxc3
(s=2)
? 13 21.61 2/35* 1. ... cxd4
Black(0): ?
time=24.49 cpu=196% mat=0 n=27007155 fh=92% nps=1102k
ext-> chk=540841 cap=85086 pp=16383 1rep=27544 mate=619
predicted=1 nodes=27007155 evals=8313815
endgame tablebase-> probes=0 hits=0
SMP-> split=450 stop=59 data=7/32 cpu=48.06 elap=24.49
Black(1): Nxc3+
time used: 24.49
White(2):
Deep Sjeng 1.5 no longer gets instantaneously - although 1.0 does on my machine.
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.