Author: Dann Corbit
Date: 10:36:18 03/16/00
Go up one level in this thread
Here is the ending of the game, analyzed at long time control (at least 7 full
moves are searched for each of the positions). The interesting thing to me is
that *except* for your 17. ... Qd5! *all* the other moves were the ones chosen
by the computer.
[d]r1bq1rk1/pp3ppp/4p3/8/1bNP4/3B4/PP2KPPP/2RQ3R b - - acd 15; acn 1002531606;
acs 36008; ce 62; pv f5 Qa4 a5 a3 Be7 Ne5 Qb6 Rc2 Rd8 f4 Qxd4 Qxd4 Rxd4 Rhc1 Rd8
Rc7;
[d]r1b2rk1/pp3ppp/4p3/3q4/1bNP4/3B4/PP2KPPP/2RQ3R w - - acd 16; acn 1112045593;
acs 20000; ce -7; pv Qa4 Be7 Nb6 axb6 Qxa8 Bd7 Qa7 Qxd4 Rhd1 Qxb2+ Kf1 Bb5 Bxb5
Qxb5+ Kg1 Qa6 Qxa6 bxa6;
[d]r1b2rk1/pp3ppp/4p3/3q4/QbNP4/3B4/PP2KPPP/2R4R b - - acd 14; acn 1040793699;
acs 7201; ce 0; pv Be7 Nb6 axb6 Qxa8 Bd7 Qa7 Bh4 g3 Bf6 Rhd1 Bxd4 Kf1 Qh1+ Ke2
Qd5;
[d]r1b2rk1/pp2bppp/4p3/3q4/Q1NP4/3B4/PP2KPPP/2R4R w - - acd 15; acn 1057978505;
acs 7201; ce -2; pv Nb6 axb6 Qxa8 Bd7 Qa7 Qxg2 Rhg1 Qd5 Qxb6 Bd6 h4 Bc6 Bc4 Qe4+
Kf1;
[d]r1b2rk1/pp2bppp/1N2p3/3q4/Q2P4/3B4/PP2KPPP/2R4R b - - acd 15; acn 1059382513;
acs 7201; ce 25; pv axb6 Qxa8 Bd7 Qa7 Bb5 Bxb5 Qxb5+ Ke3 e5 Rcd1 exd4+ Rxd4 Bg5+
Kf3 Qf5+ Kg3 Qe5+ f4 Qe3+ Kg4 Qxd4 Kxg5 Qxb2;
[d]r1b2rk1/1p2bppp/1p2p3/3q4/Q2P4/3B4/PP2KPPP/2R4R w - - acd 14; acn 1146265666;
acs 7201; ce -25; pv Qxa8 Bd7 Qa7 Bb5 Bxb5 Qxb5+ Ke3 e5 Rcd1 exd4+ Rxd4 Bg5+ Kf3
Qf5+ Kg3 Qe5+ f4 Qe3+ Kg4 Qxd4 Kxg5 Qxb2;
It is interesting that even in the last position, the chess program does not see
the problem. However, I think it was about to become aware, because there was a
fail low. Perhaps a 24 hour analysis would diagnose the position accurately.
PFGA: EPD record: 6
clearing hash tables
time surplus 0.00 time limit 120:00 (120:00) [easy move]
nss depth time score variation (1)
7 0.98 0.11 1. Qxa8 Bd7 2. Qa7 Bd8 3. Kf1 Bc6 4.
f3 Qxd4
7-> 1.21 0.11 1. Qxa8 Bd7 2. Qa7 Bd8 3. Kf1 Bc6 4.
f3 Qxd4
8 2.44 0.06 1. Qxa8 Bd7 2. Qa7 Qxg2 3. Rhg1 Qxh2
4. Rh1 Qf4 5. Bxh7+
8-> 2.77 0.06 1. Qxa8 Bd7 2. Qa7 Qxg2 3. Rhg1 Qxh2
4. Rh1 Qf4 5. Bxh7+
9 6.63 -0.04 1. Qxa8 Bd7 2. Qa7 Bf6 3. Qxb6 Bxd4
4. Qb4 Qe5+ 5. Kf1 Bxb2
9-> 7.39 -0.04 1. Qxa8 Bd7 2. Qa7 Bf6 3. Qxb6 Bxd4
4. Qb4 Qe5+ 5. Kf1 Bxb2
10 16.71 -0.02 1. Qxa8 Bd7 2. Qa7 Bc6 3. f3 Bf6 4.
Bc4 Qg5 5. Qxb6 Qxg2+ 6. Kd3
10-> 18.14 -0.02 1. Qxa8 Bd7 2. Qa7 Bc6 3. f3 Bf6 4.
Bc4 Qg5 5. Qxb6 Qxg2+ 6. Kd3
11 51.60 -0.07 1. Qxa8 Bd7 2. Qa7 Qxd4 3. Rhd1 Qxb2+
4. Kf1 Bb5 5. Bxb5 Qxb5+ 6. Kg1 Qa6
7. Qxa6 bxa6
11-> 57.57 -0.07 1. Qxa8 Bd7 2. Qa7 Qxd4 3. Rhd1 Qxb2+
4. Kf1 Bb5 5. Bxb5 Qxb5+ 6. Kg1 Qa6
7. Qxa6 bxa6
12 2:56 -0.02 1. Qxa8 Bd7 2. Qa7 Qxg2 3. Rhg1 Qd5
4. Qxb6 Bd6 5. h4 Bc6 6. Bc4 Qe4+ 7.
Kf1
12-> 3:19 -0.02 1. Qxa8 Bd7 2. Qa7 Qxg2 3. Rhg1 Qd5
4. Qxb6 Bd6 5. h4 Bc6 6. Bc4 Qe4+ 7.
Kf1
13 10:15 -0.25 1. Qxa8 Bd7 2. Qa7 Bb5 3. Bxb5 Qxb5+
4. Ke3 e5 5. Rcd1 exd4+ 6. Rxd4 Bg5+
7. Kf3 Qf5+ 8. Kg3 Qe5+ 9. f4 Qe3+
10. Kg4 Qxd4 11. Kxg5 Qxb2
13-> 11:13 -0.25 1. Qxa8 Bd7 2. Qa7 Bb5 3. Bxb5 Qxb5+
4. Ke3 e5 5. Rcd1 exd4+ 6. Rxd4 Bg5+
7. Kf3 Qf5+ 8. Kg3 Qe5+ 9. f4 Qe3+
10. Kg4 Qxd4 11. Kxg5 Qxb2
14 15:08 -- 1. Qxa8
time=120:00 cpu=99% mat=-3 n=1146265666 fh=9% nps=159203
ext-> checks=102911065 recaps=1060591 pawns=73610 1rep=9748435 thr
predicted=0 nodes=1146265666 evals=130192854
endgame tablebase-> probes done=0 successful=0
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.