[d] k6n/7R/6n1/8/3K4/8/3r3P/8 w - - 0 1
Can white hold the draw here or not?
1. Ke3 Rd8 2. Ke4 Re8+ 3. Kf5 Rf8+ 4. Ke4 Nf7 5. Kf5 Nfe5+ 6. Ke6 Nf3 7. Rh6 Nf4+ 8. Ke7 Rf5 9. Rh7 Re5+ 10. Kd7 Rc5 11. Kd6 Rd5+ 12. Ke7 Kb7 13. Rf7 Rd4 14. h3 Kc7 15. Ke8+ Kc6 16. Ra7
[d] 4K3/R7/2k5/8/3r1n2/5n1P/8/8 b - - 4 16
In this example black can now win in 20 moves with Nxh3.
Draw?
Moderators: hgm, Rebel, chrisw
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- Posts: 4567
- Joined: Sun Mar 12, 2006 2:40 am
- Full name:
Re: Draw?
After 3'50" it is already -6.00. So that does not look like a possible draw to me, even without tablebases installed.
[D]k6n/7R/6n1/8/3K4/8/3r3P/8 w - -
Engine: Sf20150607_036 MOD MP (512 MB)
by Tord Romstad, Marco Costalba and Joona Kiiski
.
.
.
20/41 0:06 -5.38 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Ke4 Nf7 5.h4 Kb8 6.Kd4 Rd8+ 7.Ke3 Re8+
8.Kf2 Nge5 9.h5 Kb7 10.Kg3 Kc6
11.Kf4 Nd3+ 12.Kf5 Nd6+ 13.Kg4 Ne5+
14.Kf4 (19.846.911) 3222
21/41 0:07 -5.39 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke7 Rd6 13.h4 Nd5+
14.Kf8 (25.246.961) 3325
22/43 0:08 -5.39 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke6 Nc5+ 13.Ke5 Nc4+
14.Kf6 (26.990.426) 3285
23/50 0:14 -5.51-- 1.Ke3 Rd8 (46.281.372) 3194
23/50 0:16 -5.52 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke6 Nc5+ 13.Ke5 Re8+
14.Kd4 (55.016.763) 3265
24/54 0:27 -5.64 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Kc7 Ka7 13.Rh5 Ka6
14.h4 (95.023.673) 3491
25/54 0:32 -5.65 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke6 Nc5+ 13.Ke5 Re8+
14.Kd4 (117.670.333) 3612
26/54 0:40 -5.66 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke6 Nc5+ 13.Ke5 Re8+
14.Kd4 (149.144.933) 3706
27/55 0:56 -5.75 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Ke5 Re8+
11.Kd4 Nf6 12.Rf7 Nf5+ 13.Kd3 Re3+
14.Kc2 (218.102.095) 3852
28/55 1:24 -5.86 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Kc7 Ka7 13.Rh5 Ka6
14.h4 (336.392.038) 3979
29/60 2:06 -5.89 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Ke4 Nf7 5.Kf5 Nfe5+ 6.Ke6 Rf2
7.Kd5 Nf7 8.Rg7 Nf4+ 9.Kd4 Ne6+
10.Ke3 Rf6 11.Rg4 Kb7 12.h4 Ne5
13.Rg1 Nc4+ 14.Kd3 (508.702.116) 4031
30/60 3:00 -5.99 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Kc7 Ka7 13.Rh5 Ka6
14.h4 (737.689.667) 4089
31/62 3:50 -6.01 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Rh7 Kb8 13.Rh5 Nf5+
14.Ke6 (950.207.658) 4124
32/63 6:13 -6.11 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Rh7 Kb8 13.Rh3 Kb7
14.Kc5 (1.564.240.329) 4192
best move: Kd4-e3 time: 6:44.900 min n/s: 4.192.077 nodes: 1.692.811.889
[D]k6n/7R/6n1/8/3K4/8/3r3P/8 w - -
Engine: Sf20150607_036 MOD MP (512 MB)
by Tord Romstad, Marco Costalba and Joona Kiiski
.
.
.
20/41 0:06 -5.38 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Ke4 Nf7 5.h4 Kb8 6.Kd4 Rd8+ 7.Ke3 Re8+
8.Kf2 Nge5 9.h5 Kb7 10.Kg3 Kc6
11.Kf4 Nd3+ 12.Kf5 Nd6+ 13.Kg4 Ne5+
14.Kf4 (19.846.911) 3222
21/41 0:07 -5.39 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke7 Rd6 13.h4 Nd5+
14.Kf8 (25.246.961) 3325
22/43 0:08 -5.39 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke6 Nc5+ 13.Ke5 Nc4+
14.Kf6 (26.990.426) 3285
23/50 0:14 -5.51-- 1.Ke3 Rd8 (46.281.372) 3194
23/50 0:16 -5.52 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke6 Nc5+ 13.Ke5 Re8+
14.Kd4 (55.016.763) 3265
24/54 0:27 -5.64 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Kc7 Ka7 13.Rh5 Ka6
14.h4 (95.023.673) 3491
25/54 0:32 -5.65 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke6 Nc5+ 13.Ke5 Re8+
14.Kd4 (117.670.333) 3612
26/54 0:40 -5.66 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rd7 Nf7+ 7.Kf5 Nd8+
8.Ke5 Ne3 9.Rh7 Re8+ 10.Kd6 Nb7+
11.Kd7 Rd8+ 12.Ke6 Nc5+ 13.Ke5 Re8+
14.Kd4 (149.144.933) 3706
27/55 0:56 -5.75 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Ke5 Re8+
11.Kd4 Nf6 12.Rf7 Nf5+ 13.Kd3 Re3+
14.Kc2 (218.102.095) 3852
28/55 1:24 -5.86 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Kc7 Ka7 13.Rh5 Ka6
14.h4 (336.392.038) 3979
29/60 2:06 -5.89 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Ke4 Nf7 5.Kf5 Nfe5+ 6.Ke6 Rf2
7.Kd5 Nf7 8.Rg7 Nf4+ 9.Kd4 Ne6+
10.Ke3 Rf6 11.Rg4 Kb7 12.h4 Ne5
13.Rg1 Nc4+ 14.Kd3 (508.702.116) 4031
30/60 3:00 -5.99 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Kc7 Ka7 13.Rh5 Ka6
14.h4 (737.689.667) 4089
31/62 3:50 -6.01 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Rh7 Kb8 13.Rh5 Nf5+
14.Ke6 (950.207.658) 4124
32/63 6:13 -6.11 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+
4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+
8.Ke6 Nf5 9.Rh7 Nfe3 10.Kd6 Nf6
11.Rh3 Nfg4 12.Rh7 Kb8 13.Rh3 Kb7
14.Kc5 (1.564.240.329) 4192
best move: Kd4-e3 time: 6:44.900 min n/s: 4.192.077 nodes: 1.692.811.889
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
-
- Posts: 20943
- Joined: Mon Feb 27, 2006 7:30 pm
- Location: Birmingham, AL
Re: Draw?
I let Crafty run for 10 minutes at 100M nodes per second. Stopped at almost -8.00. One interesting test is to remove the rooks, since this is a KNNKP type ending, and sure enough, it appears that if rooks are traded, this is a win for black because of the poor white h pawn location.Jack Lad wrote:[d] k6n/7R/6n1/8/3K4/8/3r3P/8 w - - 0 1
Can white hold the draw here or not?
1. Ke3 Rd8 2. Ke4 Re8+ 3. Kf5 Rf8+ 4. Ke4 Nf7 5. Kf5 Nfe5+ 6. Ke6 Nf3 7. Rh6 Nf4+ 8. Ke7 Rf5 9. Rh7 Re5+ 10. Kd7 Rc5 11. Kd6 Rd5+ 12. Ke7 Kb7 13. Rf7 Rd4 14. h3 Kc7 15. Ke8+ Kc6 16. Ra7
[d] 4K3/R7/2k5/8/3r1n2/5n1P/8/8 b - - 4 16
In this example black can now win in 20 moves with Nxh3.
I'd suspect it is won for black based on these results...
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- Posts: 5228
- Joined: Thu Mar 09, 2006 9:40 am
- Full name: Vincent Lejeune
Re: Draw?
At depth 40, SF gives a <120 score, that means the position is lost for white :
FEN: k6n/7R/6n1/8/3K4/8/3r3P/8 w - - 0 1
FEN: k6n/7R/6n1/8/3K4/8/3r3P/8 w - - 0 1
Code: Select all
Stockfish_15081720_x64_modern:
...
22/42 00:00 5.635k 7.635k -5,60 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+ 4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Nd6+ 8.Ke6 Nf5 9.Rh7 Nf4+ 10.Ke5 Ng6+ 11.Ke4 Nd6+ 12.Kd5 Rd8 13.Kd4 Re8 14.Kc3 Ne5 15.h4 Ndf7 16.Kd2 Kb7 17.Ke2 Kc6 18.Ke3
23/42 00:02 21.950k 9.594k -5,68 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+ 4.Kg5 Nf4 5.h4 Ne6+ 6.Kg4 Nf7 7.Rh5 Kb7 8.Kg3 Nd6 9.Re5 Nf5+ 10.Kg4 Nfd4 11.Kg3 Rf3+ 12.Kg4 Rf4+ 13.Kh3 Kc6 14.h5 Kd6 15.Re1 Nf5 16.Kg2
24/42- 00:03 31.091k 9.668k -5,74 1.Ke3 Rd8
24/42- 00:04 42.224k 10.229k -5,81 1.Ke3 Rd8
24/42 00:04 51.389k 10.563k -5,82 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+ 4.Kg5 Nf4 5.Re7 Nd5 6.Rh7 Nf7+ 7.Kf5 Nh6+ 8.Ke6 Ng4 9.Kd6 Nde3 10.Kc5 Rc8+ 11.Kb6 Nc4+ 12.Ka6 Nd6 13.h4 Nf6 14.Rh6 Rc6+ 15.Ka5 Kb8 16.Rg6 Nf5
25/42- 00:05 65.113k 10.930k -5,89 1.Ke3 Rd8
25/42 00:07 78.866k 11.182k -5,90 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+ 4.Kg5 Nf4 5.h4 Ne6+ 6.Kg4 Nf7 7.Rh5 Kb7 8.Ra5 Kb6 9.Rh5 Ra8 10.Rh7 Nd6 11.Rh6 Ra4+ 12.Kh5 Nf4+ 13.Kg5 Kc5 14.Rh7 Kd5 15.Kf6 Ra8 16.h5 Ne4+ 17.Kg7 Ke5
26/42- 00:08 96.243k 11.443k -5,96 1.Ke3 Rd8
26/42- 00:10 118.427k 11.675k -6,03 1.Ke3 Rd8
26/43+ 00:11 133.302k 11.771k -5,96 1.Ke3
26/43- 00:12 143.008k 11.853k -6,04 1.Ke3 Rd8
26/48 00:13 160.481k 11.959k -6,06 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+ 4.Kg5 Nf4 5.h4 Ne6+ 6.Kg4 Nf7 7.Rh5 Kb7 8.Ra5 Kb6 9.Rh5 Ra8 10.Rh7 Nd6 11.Rh6 Ra4+ 12.Kh3 Nf4+ 13.Kg3 Kc5 14.Rh7 Nd3 15.Rh5+ Kd4 16.Rh8 Ke4 17.Rb8 Ra1 18.h5 Nf5+ 19.Kg4 Rg1+ 20.Kh3
27/48- 00:14 179.548k 12.035k -6,12 1.Ke3 Rd8
27/48 00:16 206.017k 12.129k -6,15 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+ 4.Ke6 Rf2 5.Rh6 Nf8+ 6.Kd5 Nf7 7.Rh5 Ng6 8.Kc5 Kb7 9.Rh3 Rd2 10.Rh7 Nge5 11.Rh5 Rd8 12.Rh7 Nd3+ 13.Kb5 Rd7 14.Ka4 Nde5 15.Rh3 Kc6 16.Rc3+ Kd5 17.h4
28/48- 00:19 243.701k 12.250k -6,21 1.Ke3 Rd8
28/50 00:23 287.875k 12.377k -6,27 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+ 4.Kg5 Nf4 5.Re7 Nd5 6.Rg7 Nf7+ 7.Kf5 Ne3+ 8.Ke6 Nd6 9.Rc7 Ndf5 10.Rh7 Re8+ 11.Kf6 Nd6 12.Kg6 Rg8+ 13.Kf6 Ng4+ 14.Ke7 Nf5+ 15.Ke6 Nfh6 16.h4 Rg6+ 17.Ke7 Nf5+ 18.Kd8 Ne5 19.Rh5 Rf6 20.Kc8 Ka7 21.Rh7+ Kb6
29/50- 00:26 334.086k 12.517k -6,33 1.Ke3 Rd8
29/50- 00:30 384.040k 12.630k -6,39 1.Ke3 Rd8
29/54- 00:39 507.816k 12.783k -6,63 1.Ke3 Rd8
29/54+ 00:40 519.046k 12.778k -6,52 1.Ke3
29/54 00:40 520.682k 12.780k -6,63 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kf5 Rf8+ 4.Kg5 Nf4 5.Rh4 Ne6+ 6.Kg4 Nf7 7.Rh5 Nd6 8.Ra5+ Kb7 9.Ra4 Rg8+ 10.Kf3 Rh8 11.Ra2 Rh4 12.Kg2 Nf5 13.Rb2+ Kc6 14.Rb8 Nf4+ 15.Kg1 Nd5 16.Rc8+ Kd7 17.Rc5 Nde3 18.Ra5 Kc6 19.Ra6+ Kb5 20.Ra8 Rf4 21.Ra1 Rh4 22.Rc1 Rg4+ 23.Kh1
30/54+ 00:40 523.120k 12.780k -6,56 1.Ke3
30/54- 00:41 524.965k 12.774k -6,63 1.Ke3 Rd8
30/55- 00:44 576.085k 12.895k -6,72 1.Ke3 Rd8
30/55 00:45 588.821k 12.901k -6,72 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kd4 Ne5 4.Rh5 Nhf7 5.Kc5 Kb7 6.Kb5 Rd8 7.Kc5 Rb8 8.Rh7 Re8 9.Kb5 Rc8 10.Kb4 Kc6 11.h3 Rd8 12.Kc3 Kd5 13.Kd2 Nd6 14.Ke2 Rf8 15.Ra7 Ne4 16.Ra5+ Kd4 17.Ra4+ Nc4 18.Ra7 Rf2+ 19.Ke1
31/55- 00:48 625.624k 12.945k -6,78 1.Ke3 Rd8
31/55- 00:50 662.938k 13.013k -6,84 1.Ke3 Rd8
31/55 00:53 695.136k 13.072k -6,86 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kd4 Ne5 4.Rh5 Nhf7 5.Kc5 Kb7 6.Rh7 Kc7 7.h3 Rd8 8.Rh5 Kb7 9.Rh7 Rb8 10.Kd5 Re8 11.Rh5 Rd8+ 12.Kc5 Rd3 13.h4 Rd7 14.Kb5 Rd5+ 15.Ka4 Kc6 16.Rh7 Rd3 17.Kb4 Rf3 18.Ka5 Rf4
32/55- 00:55 725.862k 13.133k -6,92 1.Ke3 Rd8
32/55 00:55 729.875k 13.135k -6,92 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kd4 Ne5 4.Rh5 Nhf7 5.Kc5 Kb7 6.Rh7 Kc7 7.Rh5 Rd8 8.Rh7 Rd3 9.Kb5 Rd5+ 10.Ka4 Kc6 11.Kb3 Rd8 12.h3 Rb8+ 13.Kc2 Re8 14.h4 Kd5 15.h5 Nd6 16.Kc1 Rc8+ 17.Kb2 Rb8+ 18.Kc2 Kd4 19.h6 Ndc4 20.Kc1 Ne3
33/55- 00:58 767.793k 13.173k -6,98 1.Ke3 Rd8
33/55 00:58 772.380k 13.173k -6,98 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kd4 Ne5 4.Rh5 Nhf7 5.Kc5 Kb7 6.Rh7 Kc7 7.Rh5 Rd8 8.Rh7 Rd3 9.Kb5 Rd5+ 10.Ka4 Kc6 11.Kb3 Rd8 12.h3 Rb8+ 13.Kc2 Kd5 14.h4 Nd6 15.Kc1 Rc8+ 16.Kb2 Rf8 17.h5 Rb8+ 18.Kc1 Rc8+ 19.Kb2 Rd8 20.Rh6 Ndf7 21.Rh7
34/55 00:59 777.363k 13.175k -6,98 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kd4 Ne5 4.Rh5 Nhf7 5.Kc5 Kb7 6.Rh7 Kc7 7.Rh5 Rd8 8.Rh7 Rd3 9.Kb5 Rd5+ 10.Ka4 Kc6 11.Kb3 Rd8 12.h3 Rb8+ 13.Kc2 Kd5 14.h4 Nd6 15.Kc1 Rc8+ 16.Kb2 Rf8 17.h5 Rb8+ 18.Kc1 Rc8+ 19.Kb2 Rd8 20.Rh6 Ndf7 21.Rh7 Rc8
35/55- 01:03 843.997k 13.258k -7,05 1.Ke3 Rd8
35/55- 01:06 890.602k 13.336k -7,11 1.Ke3 Rd8
35/55- 01:40 1.421.247k 14.112k -14,02 1.Ke3 Rd8
35/55 01:41 1.432.280k 14.123k -14,02 1.Ke3 Rd8 2.Ke4 Re8+ 3.Kd4 Ne5 4.Rh3 Kb7 5.Kd5 Nhf7 6.Rh7 Kb6 7.h4 Kb7 8.Kc5 Rd8 9.Kb4 Kc6 10.Kc3 Re8 11.h5 Kd5 12.Kc2 Rb8 13.Kc1 Rc8+ 14.Kb1 Rd8 15.Kc2 Kc6 16.Kc1 Rg8 17.Kd2 Nf3+ 18.Ke3 Re8+ 19.Kf2 N3g5 20.Rg7 Rh8 21.Rg6+ Kd5 22.h6 Ne6
36/55- 01:43 1.470.023k 14.150k -14,08 1.Ke3 Rd8
36/57- 01:45 1.505.972k 14.245k -14,14 1.Ke3 Rd8
36/57+ 01:46 1.527.885k 14.312k -14,08 1.Ke4
36/57- 01:47 1.539.925k 14.347k -14,16 1.Ke4 Re2+
36/57- 01:56 1.722.465k 14.812k -16,90 1.Ke4 Re2+
36/63+ 01:56 1.731.296k 14.825k -16,10 1.Ke4
36/63- 01:58 1.756.896k 14.880k -17,29 1.Ke4 Re2+
36/63- 02:04 1.854.398k 14.914k -26,14 1.Ke4 Re2+
36/63+ 02:04 1.858.042k 14.914k -21,61 1.Ke4
36/63- 02:07 1.901.442k 14.961k -28,12 1.Ke4 Re2+
36/63- 02:09 1.946.331k 14.976k -46,02 1.Ke4 Re2+
36/63+ 02:10 1.951.410k 14.977k -29,67 1.Ke4
36/63 02:10 1.955.298k 14.975k -46,02 1.Ke4 Re2+ 2.Kf3 Re8 3.Rh3 Nf7 4.Kg4 Kb7 5.Rh7 Nge5+ 6.Kg3 Rg8+ 7.Kf4 Kc6 8.Rh5 Re8 9.Ke4 Rd8 10.Ke3 Kd5 11.Kd2 Nd6 12.Kc2 Rc8+ 13.Kb2 Rf8 14.Kc3 Rb8 15.h3 Ne4+ 16.Kc2 Rf8 17.Rh7 Rf2+ 18.Kb3 Rf3+ 19.Kc2 Kd4 20.Rh4 Rc3+ 21.Kb2 Nc4+ 22.Kb1 Kc5 23.Rh5+ Kb4 24.Ka2
37/63 02:10 1.955.776k 14.975k -46,02 1.Ke4 Re2+ 2.Kf3 Re8 3.Rh3 Nf7 4.Kg4 Kb7 5.Rh7 Nge5+ 6.Kg3 Rg8+ 7.Kf4 Kc6 8.Rh5 Re8 9.Ke4 Rd8 10.Ke3 Kd5 11.Kd2 Nd6 12.Kc2 Rc8+ 13.Kb2 Rf8 14.Kc3 Rb8 15.h3 Ne4+ 16.Kc2 Rd8 17.Rh7 Rc8+ 18.Kb1 Rb8+ 19.Kc1 Rf8 20.Rg7 Rf1+ 21.Kb2 Rf2+ 22.Ka1 Nc3 23.Ra7 Nc4
38/63 02:10 1.956.999k 14.975k -46,02 1.Ke4 Re2+ 2.Kf3 Re8 3.Rh3 Nf7 4.Kg4 Kb7 5.Rh7 Nge5+ 6.Kg3 Rg8+ 7.Kf4 Kc6 8.Rh5 Re8 9.Ke4 Rd8 10.Ke3 Kd5 11.Kd2 Nd6 12.Kc2 Rc8+ 13.Kb2 Rf8 14.Ka2 Ne4 15.Rh6 Ra8+ 16.Kb2 Rd8 17.h4 Nd3+ 18.Kc2 Kd4 19.Kd1 Rb8 20.Ke2 Rb2+ 21.Kf1 Rf2+ 22.Kg1 Ne5 23.Rd6+ Kc5
39/63 02:10 1.958.664k 14.974k -46,02 1.Ke4 Re2+ 2.Kf3 Re8 3.Rh3 Nf7 4.Kg4 Kb7 5.Rh7 Nge5+ 6.Kg3 Rg8+ 7.Kf4 Kc6 8.Rh5 Re8 9.Ke4 Rd8 10.Ke3 Kd5 11.Kd2 Nd6 12.Kc2 Rc8+ 13.Kb2 Rf8 14.Kb3 Rb8+ 15.Kc2 Ra8 16.Rh6 Rf8 17.h3 Re8 18.Kb1 Rb8+ 19.Ka1 Ne4 20.Rh4 Ra8+ 21.Kb1 Kd4 22.Rh7 Rf8 23.Rc7 Rf1+ 24.Ka2
40/63- 02:13 2.004.492k 15.018k -46,08 1.Ke4 Re2+
40/63- 02:16 2.054.883k 15.065k -46,15 1.Ke4 Re2+
40/63- 02:18 2.100.523k 15.116k -46,24 1.Ke4 Re2+
40/63+ 02:20 2.120.259k 15.131k -46,15 1.Ke4
40/63- 02:21 2.147.363k 15.189k -46,27 1.Ke4 Re2+
40/63- 02:25 2.229.159k 15.332k -47,05 1.Ke4 Re2+
40/63+ 02:25 2.231.585k 15.334k -46,64 1.Ke4
40/63- 02:27 2.268.093k 15.405k -47,22 1.Ke4 Re2+
40/63- 02:36 2.405.483k 15.414k -54,70 1.Ke4 Re2+
40/63+ 02:36 2.410.829k 15.412k -51,65 1.Ke4
40/63- 02:38 2.453.033k 15.438k -56,02 1.Ke4 Re2+
40/63- 02:43 2.497.961k 15.300k -67,95 1.Ke4 Re2+
40/63+ 02:43 2.500.025k 15.300k -54,26 1.Ke4
40/63- 02:48 2.542.904k 15.134k -72,37 1.Ke4 Re2+
40/63- 02:51 2.593.487k 15.148k -112,65 1.Ke4 Re2+
40/63+ 02:54 2.642.600k 15.168k -77,03 1.Ke4
40/63- 02:54 2.642.738k 15.168k -102,65 1.Ke4 Re2+
40/63 03:02 2.764.254k 15.178k -123,30 1.Ke4 Re2+ 2.Kf5 Ne7+ 3.Kg5 Nhg6 4.Kf6 Rf2+ 5.Kg5 Rf5+ 6.Kh6 Rf4 7.Kg5 Rf2 8.h3 Rf8 9.h4 Rf5+ 10.Kh6 Re5 11.Kg7 Nf4 12.Kf6 Nc6 13.Kf7 Kb7 14.Kf8+ Kc8 15.Kf7 Kd8 16.Rh8+ Kc7 17.Rh7 Kd7 18.Kf6+ Kd6 19.Rh8 Nh5+ 20.Kf7 Kd7 21.Kg6 Ne7+ 22.Kh6 Nf4 23.Kg7 Neg6 24.Rh6 Re7+ 25.Kf6 Re6+ 26.Kg7 Ne5
41/63 03:05 2.829.030k 15.233k -123,34 1.Ke4 Re2+ 2.Kd4 Re8 3.Rh6 Ne5 4.Rh3 Nhf7 5.Rh5 Ng6 6.Rh3 Rd8+ 7.Kc5 Nf4 8.Rh7 Ne5 9.Kb6 Rb8+ 10.Kc5 Neg6 11.h4 Rf8 12.Rh6 Ne7 13.Kb6 Nf5 14.Rh7 Nd5+ 15.Ka6 Nf6 16.Ra7+ Kb8 17.Rb7+ Kc8 18.Rb4 Nd5 19.Rc4+ Kd7 20.Rg4 Ra8+ 21.Kb5 Nd6+ 22.Kc5 Ra5+ 23.Kd4 Ra4+ 24.Ke5 Rxg4
42/63 03:06 2.839.249k 15.237k -123,34 1.Ke4 Re2+ 2.Kd4 Re8 3.Rh6 Ne5 4.Rh3 Nhf7 5.Rh5 Ng6 6.Rh3 Rd8+ 7.Kc5 Nf4 8.Rh7 Ne5 9.Kb6 Rb8+ 10.Kc5 Neg6 11.h4 Rf8 12.Rh6 Ne7 13.Kc4 Nf5 14.Rh7 Rc8+ 15.Kb5 Nd4+ 16.Ka6 Rc6+ 17.Ka5 Rc5+ 18.Kb6 Rh5 19.Ra7+ Kb8 20.Rb7+ Kc8 21.Rc7+ Kd8 22.Rc4 Nd5+ 23.Kc5 Ne3+ 24.Kb6 Nxc4+
43/63 03:18 3.025.265k 15.211k -123,36 1.Ke4 Re2+ 2.Kf5 Ne7+ 3.Kg5 Nhg6 4.Kf6 Rf2+ 5.Kg5 Rf1 6.h3 Rf8 7.h4 Rf5+ 8.Kh6 Re5 9.Kg7 Nf4 10.Kf6 Nc6 11.Rh8+ Kb7 12.Rh7+ Kc8 13.Rh8+ Kd7 14.Rh7+ Kd6 15.Rh8 Nh5+ 16.Kf7 Rf5+ 17.Kg6 Ne7+ 18.Kh6 Nf4 19.Kg7 Nfg6 20.Rd8+ Ke6 21.Rd4 Rf7+ 22.Kh6 Nxh4
44/63 03:22 3.081.819k 15.213k -123,36 1.Ke4 Re2+ 2.Kf5 Ne7+ 3.Kg5 Nhg6 4.Kf6 Rf2+ 5.Kg5 Rf1 6.h3 Rf8 7.h4 Rf5+ 8.Kh6 Re5 9.Kg7 Nf4 10.Kf6 Nc6 11.Rh8+ Kb7 12.Rh7+ Kc8 13.Rh8+ Kd7 14.Rh7+ Kd6 15.Rh8 Nh5+ 16.Kf7 Kd7 17.Kg6 Ne7+ 18.Kh6 Ke6 19.Rh7 Nf6 20.Rh8 Rh5+ 21.Kg7 Rxh8
45/63 03:23 3.095.357k 15.204k -123,36 1.Ke4 Re2+ 2.Kf5 Ne7+ 3.Kg5 Nhg6 4.Kf6 Rf2+ 5.Kg5 Rf1 6.h3 Rf8 7.h4 Rf5+ 8.Kh6 Re5 9.Kg7 Nf4 10.Kf6 Nc6 11.Rh8+ Kb7 12.Rh7+ Kc8 13.Rh8+ Kd7 14.Rh7+ Kd6 15.Rh8 Nh5+ 16.Kf7 Kd7 17.Kg6 Ne7+ 18.Kh6 Ke6 19.Rh7 Nf6 20.Rh8 Rh5+ 21.Kg7 Rxh8
46/63 03:43 3.384.964k 15.144k -123,39 1.Ke4 Rf2 2.Ke3 Rf8 3.Rh5 Re8+ 4.Kf2 Ne5 5.Rh3 Rf8+ 6.Kg1 Nf3+ 7.Kg2 Ng6 8.Rh7 Nfe5 9.Kg1 Nh4 10.h3 Nef3+ 11.Kh1 Nf5 12.Rd7 Re8 13.Kg2 N3h4+ 14.Kf2 Re3 15.Rd8+ Kb7 16.Rd7+ Kb6 17.Rd5 Rxh3
47/63 03:44 3.402.412k 15.134k -123,39 1.Ke4 Rf2 2.Ke3 Rf8 3.Rh5 Re8+ 4.Kf2 Ne5 5.Rh3 Rf8+ 6.Kg1 Nf3+ 7.Kg2 Ng6 8.Rh7 Nfe5 9.Kg1 Nh4 10.h3 Nef3+ 11.Kh1 Nf5 12.Rd7 Re8 13.Kg2 N3h4+ 14.Kf2 Re3 15.Rd8+ Kb7 16.Rd7+ Kb6 17.Rd5 Rxh3
48/63 03:47 3.441.721k 15.132k -123,39 1.Ke4 Rf2 2.Ke3 Rf8 3.Rh5 Re8+ 4.Kf2 Ne5 5.Rh3 Rf8+ 6.Kg1 Nf3+ 7.Kg2 Ng6 8.Rh7 Nfe5 9.Kg1 Nh4 10.h3 Nef3+ 11.Kh1 Nf5 12.Rd7 Re8 13.Kg2 N3h4+ 14.Kf2 Re3 15.Rd8+ Kb7 16.Rd7+ Kb6 17.Rd5 Rxh3
49/63 03:49 3.472.860k 15.124k -123,39 1.Ke4 Rf2 2.Ke3 Rf8 3.Rh5 Re8+ 4.Kf2 Ne5 5.Rh3 Rf8+ 6.Kg1 Nf3+ 7.Kg2 Ng6 8.Rh7 Nfe5 9.Kg1 Nh4 10.h3 Nef3+ 11.Kh1 Nf5 12.Rd7 Re8 13.Kg2 N3h4+ 14.Kf2 Re3 15.Rd8+ Kb7 16.Rd7+ Kb6 17.Rd5 Rxh3
50/63 03:53 3.526.977k 15.113k -123,39 1.Ke4 Rf2 2.Ke3 Rf8 3.Rh5 Re8+ 4.Kf2 Ne5 5.Rh3 Rf8+ 6.Kg1 Nf3+ 7.Kg2 Ng6 8.Rh7 Nfe5 9.Kg1 Nh4 10.h3 Nef3+ 11.Kh1 Nf5 12.Rd7 Re8 13.Kg2 N3h4+ 14.Kf2 Re3 15.Rd8+ Kb7 16.Rd7+ Kb6 17.Rd5 Rxh3
51/63 03:57 3.581.324k 15.092k -123,39 1.Ke4 Rf2 2.Ke3 Rf8 3.Rh5 Re8+ 4.Kf2 Ne5 5.Rh3 Rf8+ 6.Kg1 Nf3+ 7.Kg2 Ng6 8.Rh7 Nfe5 9.Kg1 Nh4 10.h3 Nef3+ 11.Kh1 Nf5 12.Rd7 Re8 13.Kg2 N3h4+ 14.Kf2 Re3 15.Rd8+ Kb7 16.Rd7+ Kb6 17.Rd5 Rxh3
52/63 04:03 3.672.564k 15.087k -123,39 1.Ke4 Rf2 2.Ke3 Rf8 3.Rh5 Re8+ 4.Kf2 Ne5 5.Rh3 Rf8+ 6.Kg1 Nf3+ 7.Kg2 Ng6 8.Rh7 Nfe5 9.Kg1 Nh4 10.h3 Nef3+ 11.Kh1 Nf5 12.Rd7 Re8 13.Kg2 N3h4+ 14.Kf2 Re3 15.Rd8+ Kb7 16.Rd7+ Kb6 17.Rd5 Rxh3
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Re: Draw?
[d] 1n1qk1n1/8/8/8/8/8/7P/3QK3 w - - 0 1bob wrote:One interesting test is to remove the rooks, since this is a KNNKP type ending, and sure enough, it appears that if rooks are traded, this is a win for black because of the poor white h pawn location.
In this position if white simply trades queens then the position is lost. Better to play Qe2+ instead but can white hold on?