Author: Mike Byrne
Date: 15:15:48 02/25/05
..and after almost 14 hours of think time on this well knowned position from a
game 1947 ...
just ran it to check the stability on a dual Opeteron 244 (1.8 Ghz)running at an
overclocked 2.1 Ghz
when I have time , I will let it run to trillion nodes on a position - it shoudd
take about 4 days or so - who has a position that is worthy of a
1,000,000,000,000 think?
Black(1): [d]2r2rk1/p3bb1p/2n1Q1p1/q2pP3/3P1P2/p1NB1NR1/1P4P1/1K1R4 w - - 0 1
;bm B
xg6!
White(1): st 9999999
search time set to 9999998.72.
White(1): g
time surplus 29.94 time limit 166666:39 (166666:39)
depth time score variation (1)
starting thread 1
5 0.11 -6.80 1. Qf5 axb2 2. Kxb2 Nxd4 3. Nxd4 Qxc3+
4. Kb1 Qb4+ 5. Ka1 Qxd4+ (s=3)
5 0.11 -5.55 1. Qh3 axb2 2. Bf5 Qa1+ 3. Kc2 Nb4+
4. Kd2 Rxc3 5. Kxc3 Qxd1 6. Kxb2 (s=2)
5 0.14 -5.26 1. Qg4 axb2 2. Bf5 Qa1+ 3. Kc2 Nb4+
4. Kd2 Rxc3 5. Kxc3 Qxd1 6. Kxb2
5-> 0.15 -5.26 1. Qg4 axb2 2. Bf5 Qa1+ 3. Kc2 Nb4+
4. Kd2 Rxc3 5. Kxc3 Qxd1 6. Kxb2 (s=6)
6 0.20 -5.65 1. Qg4 axb2 2. e6 Qa1+ 3. Kc2 Nb4+
4. Kd2 Rxc3 5. exf7+ Rxf7 6. Ne5 Nxd3
7. Nxf7 Kxf7 8. Rxd3 Rxd3+ 9. Kxd3
b1=Q+ 10. Rxb1 Qxb1+ (s=5)
6-> 0.34 -5.65 1. Qg4 axb2 2. e6 Qa1+ 3. Kc2 Nb4+
4. Kd2 Rxc3 5. exf7+ Rxf7 6. Ne5 Nxd3
7. Nxf7 Kxf7 8. Rxd3 Rxd3+ 9. Kxd3
b1=Q+ 10. Rxb1 Qxb1+ (s=6)
7 0.42 -5.81 1. Qg4 axb2 2. e6 Qa1+ 3. Kc2 Nb4+
4. Kd2 Rxc3 5. exf7+ Rxf7 6. Bb1 Rc4
(s=5)
7 0.78 -5.51 1. Qd7 axb2 2. e6 Qa1+ 3. Kc2 Nxd4+
4. Kd2 b1=N+ 5. Nxb1 Bb4+ 6. Ke3 Bxe6
7. Qb7 (s=4)
7-> 0.92 -5.51 1. Qd7 axb2 2. e6 Qa1+ 3. Kc2 Nxd4+
4. Kd2 b1=N+ 5. Nxb1 Bb4+ 6. Ke3 Bxe6
7. Qb7
8 1.39 -5.85 1. Qd7 axb2 2. e6 Qa1+ 3. Kc2 Nb4+
4. Kd2 Rxc3 5. Bb1 Bh4 6. Kxc3 Qa3+
7. Kd2 Bxg3 8. exf7+ Rxf7
8-> 2.29 -5.85 1. Qd7 axb2 2. e6 Qa1+ 3. Kc2 Nb4+
4. Kd2 Rxc3 5. Bb1 Bh4 6. Kxc3 Qa3+
7. Kd2 Bxg3 8. exf7+ Rxf7 (s=3)
9 3.44 -1 1. Qd7
9 4.76 -6.82 1. Qd7 axb2 2. e6 Qa1+ 3. Kc2 Nb8 4.
exf7+ Kh8 5. Qxe7 Rxc3+ 6. Kd2 Rxd3+
7. Kxd3 Qxd1+ 8. Ke3 b1=Q 9. Qxf8#
(s=2)
9 13.06 -6.22 1. Qh3 axb2 2. Bc4 Qa1+ 3. Kc2 Nb4+
4. Kd2 Rxc4 5. Rh1 b1=N+ 6. Nxb1 Qb2+
7. Ke3 Nc2+ 8. Kf2 Nxd4+ 9. Nfd2
9 16.56 +1 1. Bxg6!!
9 17.72 -5.30 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Rxf4
4. Bf5+ Bh4 5. Rxh4+ Rxh4 6. Nxh4 a2+
7. Ka1 Nxd4 8. Ng6+ Kg7 9. Bxe6 Nxe6
10. Nxa2
9-> 17.86 -5.30 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Rxf4
4. Bf5+ Bh4 5. Rxh4+ Rxh4 6. Nxh4 a2+
7. Ka1 Nxd4 8. Ng6+ Kg7 9. Bxe6 Nxe6
10. Nxa2 (s=5)
10 19.14 +1 1. Bxg6!!
10 21.01 +3 1. Bxg6!!
10 23.70 -2.59 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Nxh4 a2+ 5. Nxa2 Ne7 6. Ng6+ Nxg6
7. Bxg6+ Kg7 (s=4)
10-> 24.95 -2.59 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Nxh4 a2+ 5. Nxa2 Ne7 6. Ng6+ Nxg6
7. Bxg6+ Kg7
11 33.97 +1 1. Bxg6!!
11 39.76 -1.94 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Nxh4 Rfe8 5. Bg6 Re7 6. Nf5+ Kg8
7. Nxe7+ Nxe7
11-> 42.04 -1.94 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Nxh4 Rfe8 5. Bg6 Re7 6. Nf5+ Kg8
7. Nxe7+ Nxe7
12 1:31 +1 1. Bxg6!!
12 3:10 +3 1. Bxg6!!
12 3:50 -0.31 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Rxh4 Rxf4 5. Rh2 Bg4 6. Bf5+ Kg8
7. Bxc8 axb2 8. Na2 Rxf3 9. gxf3
12-> 3:56 -0.31 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Rxh4 Rxf4 5. Rh2 Bg4 6. Bf5+ Kg8
7. Bxc8 axb2 8. Na2 Rxf3 9. gxf3
13 11:39 +1 1. Bxg6!!
13 16:00 +3 1. Bxg6!!
13 18:12 1.15 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Bd3 a2+ 5. Nxa2 Bh3 6. Nxh4 Rf7
7. Ng6+ Kg8 8. Rgxh3 Rfc7 9. Rh8+ Kf7
10. Rxc8 Rxc8
13-> 18:26 1.15 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Bd3 a2+ 5. Nxa2 Bh3 6. Nxh4 Rf7
7. Ng6+ Kg8 8. Rgxh3 Rfc7 9. Rh8+ Kf7
10. Rxc8 Rxc8
14 35:09 +1 1. Bxg6!!
14 68:07 +3 1. Bxg6!!
14 167:15 4.50 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Rxf4
4. Bf5+ Bh4 5. Nxh4 a2+ 6. Ka1 Rf1+
7. Rxf1 Nxe5 8. Bxe6 Re8 9. Bxd5 Qa6
14-> 168:03 4.50 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Rxf4
4. Bf5+ Bh4 5. Nxh4 a2+ 6. Ka1 Rf1+
7. Rxf1 Nxe5 8. Bxe6 Re8 9. Bxd5 Qa6
15 338:35 +1 1. Bxg6!!
15 341:01 4.65 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Bd3 Rxf4 5. Nxh4 Rf1+ 6. Rxf1 Nxe5
7. Rh1 a2+ 8. Ka1 Ng4 9. Nf5+ Kg8 10.
Rxg4+ Kf8 11. Rh8+ Kf7 12. Rxc8 Bxc8
13. Nxa2 Bxf5 14. Bxf5
15-> 347:05 4.65 1. Bxg6 Bxe6 2. Bxh7+ Kh8 3. Rh1 Bh4
4. Bd3 Rxf4 5. Nxh4 Rf1+ 6. Rxf1 Nxe5
7. Rh1 a2+ 8. Ka1 Ng4 9. Nf5+ Kg8 10.
Rxg4+ Kf8 11. Rh8+ Kf7 12. Rxc8 Bxc8
13. Nxa2 Bxf5 14. Bxf5 (s=3)
16 680:53 +1 1. Bxg6!!
? 16 828:30 1/51* 1. Bxg6
White(1): ?
time=828:42 cpu=197% mat=0 n=162653298986 fh=662% nps=3.27M
ext-> chk=-1999313540 cap=279972870 pp=876552632 1rep=1102251287 m
ate=64189685
predicted=1 nodes=162653298986 evals=912089482 50move=0
endgame tablebase-> probes=0 hits=0
SMP-> split=3824 stop=807 data=9/64 cpu=1634:42 elap=828:42
White(1): Bxg6
time used: 828:42
Black(1):
This page took 0.01 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.