Author: Dann Corbit
Date: 12:23:58 11/02/01
Go up one level in this thread
This one is simply *WAY* too deep for computers. Besides which, tossing two
pieces along the way will certainly make it harder for computers. A negative
score shows up at ply 12, which is 7 ply beyond the original position, and if we
toss in null move with r=3 that is 12+7+3 = 22 ply. Probably in a few months a
program could solve it. Or Deep Blue could solve it quickly. Deep Blue didn't
use null move.
[D]r1bq1r2/p2np2k/3p4/3pP3/2pP3N/3BQ3/PP4P1/2KR4 b - - c0 "after Rxg6+ Kxg6
Nh4+ Kh6 Qe3+ Kh7 Bd3+";
Stored 8 learned positions into hash table
solution
no solutions
usetime = 998.00, mintime = 998.00 maxtime = 998.00 tl 998.00 ml 0
57 0.001 6.82 1t 1...cxd3 2.Qxd3+ Kg8 {770}
61 0.001 6.82 1. 1...cxd3 2.Qxd3+ Kg8 {770}
106 0.002 6.82 2t 1...cxd3 2.Qxd3+ Kg8 {770}
163 0.002 6.82 2. 1...cxd3 2.Qxd3+ Kg8 {770}
315 0.003 6.42 3-- 1...cxd3 2.Qxd3+ Rf5 3.Qxf5+ Kg8 {270}
589 0.004 5.42 3-- 1...cxd3 2.Qxd3+ Rf5 3.Qxf5+ Kg8 {270}
1464 0.006 5.05 3t 1...cxd3 2.Qxd3+ Kg8 3.Qg3+ Kh8 4.Ng6+ Kh7 {770}
1621 0.007 5.05 3. 1...cxd3 2.Qxd3+ Kg8 3.Qg3+ Kh8 4.Ng6+ Kh7 {770}
4109 0.012 5.05 4t 1...cxd3 2.Qxd3+ Kh8 3.Ng6+ Kg8 4.Nxf8 Qxf8
{610}
4297 0.015 5.05 4. 1...cxd3 2.Qxd3+ Kh8 3.Ng6+ Kg8 4.Nxf8 Qxf8
{610}
9406 0.026 5.05 5t 1...cxd3 2.Qxd3+ Kh8 3.Ng6+ Kg7 4.Nxf8 Nxf8
5.Qg3+ Ng6 {610}
12499 0.036 5.05 5. 1...cxd3 2.Qxd3+ Kh8 3.Ng6+ Kg7 4.Nxf8 Nxf8
5.Qg3+ Ng6 {610}
25905 0.070 5.20 6t 1...cxd3 2.Qxd3+ Kh8 3.Ng6+ Kg7 4.Nxf8 Nxf8
5.Qg3+ Ng6 6.Rf1 dxe5 7.dxe5 {610}
38618 0.107 5.20 6. 1...cxd3 2.Qxd3+ Kh8 3.Ng6+ Kg7 4.Nxf8 Nxf8
5.Qg3+ Ng6 6.Rf1 dxe5 7.dxe5 {610}
326941 0.689 5.06 7t 1...cxd3 2.Qxd3+ Kh8 3.e6 Qc7+ 4.Kb1 Qc4 5.exd7
{430}
330721 0.701 5.06 7. 1...cxd3 2.Qxd3+ Kh8 3.e6 Qc7+ 4.Kb1 Qc4 5.exd7
{430}
687577 1.561 4.66 8-- 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Qc7+ 4.Kb1 Nf6
5.exf6 Kg8 {430}
777995 1.793 3.66 8-- 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Qc7+ 4.Kb1 Kg8
5.Qg3+ Kh8 6.Ng6+ Kg8 7.Nxf8+ Kf7 {270}
1228992 2.602 3.66 8t 1...cxd3 2.Qxd3+ Kh8H 3.Qg6H {HT}
1321807 2.871 3.66 8. 1...cxd3 2.Qxd3+ Kh8 3.Qg6
1806982 3.889 3.26 9-- 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Qc7+ 4.Kb1 dxe5
5.Nf5+ Kg8 6.Nxe7+ Kf7 7.Rh7+ Kf6 8.Nxd5+ Ke6
9.Nxc7+ Kd6 {-311}
3901620 8.085 2.49 9t 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Qc7+ 4.Kd1 Nf6
5.Nf3+ Kg7H 6.exf6+H Rxf6H 7.Qh7+H Kf8H 8.Qh8+H
Kf7H 9.Ng5+H Kg6H 10.Qg8+H Kf5H {510}
4693536 10.228 2.49 9. 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Qc7+ 4.Kd1 Nf6
5.Nf3+ Kg7 6.exf6+ Rxf6 7.Qh7+ Kf8 8.Qh8+ Kf7
9.Ng5+ Kg6 10.Qg8+ Kf5 {510}
5039985 11.128 2.09 10-- 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Qc7+ 4.Kd1 Nf6
5.Nf3+ Kg7 6.exf6+ exf6 7.Rh7+ Kg8 8.Rxc7 Rf7
{-491}
5813424 13.129 1.09 10-- 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Qc7+ 4.Kd1 Nf6
5.Nf3+ Kg7 6.exf6+ exf6 7.Rh7+ Kg8 8.Rxc7 Rf7
{-491}
17309332 37.464 0.51 10t 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Rf1+ 4.Qxf1 Kg8
5.Nf5 Qf8 6.Nh6+ Kg7 7.Nf5+ Kf7 8.Rh7+ Kg8
9.Rg7+H Qxg7H 10.Nxg7H {HT} {-231}
19556607 43.370 0.51 10. 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Rf1+ 4.Qxf1 Kg8
5.Nf5 Qf8 6.Nh6+ Kg7 7.Nf5+ Kf7 8.Rh7+ Kg8
9.Rg7+ Qxg7 10.Nxg7 {HT} {-231}
21447038 47.963 0.11 11-- 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Rf1+ 4.Qxf1 Kg8
5.Nf5 Qf8 6.Qf3 Nb6 7.Nh6+ Kh8 8.Qxf8+ Kh7
{-731}
40822216 1:24.5 0.11 11t 1...cxd3 2.Qxd3+ Kh8H 3.Rh1H Rf1+H 4.Qxf1H Kg8H
5.Nf5H Nxe5H 6.Nh6+H Kg7H 7.dxe5H Qc7+H 8.Kb1H
dxe5H {90}
46022064 1:37.6 0.11 11. 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Rf1+ 4.Qxf1 Kg8
5.Nf5 Nxe5 6.Nh6+ Kg7 7.dxe5 Qc7+ 8.Kb1 dxe5
{90}
66425017 2:24.6 -0.29 12-- 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Rf1+ 4.Qxf1 Kg8
5.Qf4 Qc7+ 6.Kd1 Kg7 7.Qg5+ Kf7 8.e6+ Kf8
9.exd7 Qc4 10.dxc8=Q+ Rxc8 {-340}
178613911 6:04.2 -0.62 12t 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Rf1+ 4.Qxf1 Kg8
5.Qf4 Qc7+ 6.Kd1 Nxe5 7.dxe5 dxe5 8.Qg5+ Kf8
9.Rf1+ Ke8H {HT} {90}
189083919 6:32.8 -0.62 12. 1...cxd3 2.Qxd3+ Kh8 3.Rh1 Rf1+ 4.Qxf1 Kg8
5.Qf4 Qc7+ 6.Kd1 Nxe5 7.dxe5 dxe5 8.Qg5+ Kf8
9.Rf1+ Ke8 {HT} {90}
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