Author: Mike Byrne
Date: 18:58:36 03/26/05
Go up one level in this thread
On March 26, 2005 at 21:30:04, Robert Hyatt wrote:
>>Probably a bug in the static eval of the pawn endgame. after 3 min@3 Ghz :
>
>I can't reproduce Mikes PV with this "c6 bug"... I don't get c6 at any point
>that I can see, it always takes...
>
>Any ideas?
>
>
>>
>>[D]8/2k5/1p6/2Pp4/P2P3p/5K2/8/8 w - - 0 1
>>
>>Analysis by Crafty 19.19:
>>
yes ..something is wrong with the 5-man egtb I made,
egtb enabled
===========================
White(1): tbpath e:\tb
5 piece tablebase files found
13994kb of RAM used for TB indices and decompression tables
White(1): new
parallel threads terminated.
White(1): 8/2k5/1p6/2Pp4/P2P3p/5K2/8/8 w - - 0 1
White(1): g
time surplus 0.00 time limit 22.50 (3:30)
depth time score variation (1)
starting thread 1
1 0.00 -0.88 1. Kg4
1 0.00 -0.78 1. Kf4
1-> 0.02 -0.78 1. Kf4
2 0.02 -1 1. Kf4
2 0.02 -1.28 1. Kf4 h3
2 0.02 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
2-> 0.02 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
3 0.02 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
3-> 0.02 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4 0.02 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4-> 0.02 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
5 0.02 -0.40 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5
5-> 0.03 -0.40 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5
6 0.03 -0.60 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kh3 Kxa4
4. Kxh4 Kb3
6-> 0.03 -0.60 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kh3 Kxa4
4. Kxh4 Kb3
7 0.03 -1 1. cxb6+
7 0.03 -Mat128 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 <EGTB>
7 0.03 -8.71 1. Kf4 bxc5 2. a5 cxd4 3. Kg4 d3 4.
Kxh4
7 0.03 -5.85 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. Kxh4
7-> 0.05 -5.85 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. Kxh4
(s=2)
8 0.05 -1 1. c6
8 0.05 -6.45 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. Kxh4
b3
8 0.06 -6.41 1. Kg4 bxc5 2. Kxh4 c4 3. a5 Kb7 4.
Kg5 c3
8-> 0.06 -6.41 1. Kg4 bxc5 2. Kxh4 c4 3. a5 Kb7 4.
Kg5 c3 (s=4)
9 0.06 -6.31 1. Kg4 bxc5 2. Kxh4 c4 3. a5 Kb7 4.
Kg5 c3 5. Kf6 (s=3)
9 0.06 +1 1. c6!!
9 0.06 -5.95 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. Kxh4
b3 5. a6
9-> 0.06 -5.95 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. Kxh4
b3 5. a6 (s=3)
10 0.06 -1 1. c6
10 0.10 -7.17 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. a6
Kb6 5. a7 Kxa7 6. Kxh4 (s=2)
10-> 0.10 -7.17 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. a6
Kb6 5. a7 Kxa7 6. Kxh4 (s=5)
11 0.10 -1 1. c6
11 0.11 -7.77 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. a6
Kb6 5. a7 Kxa7 6. Kxh4 b3 (s=4)
11-> 0.13 -7.77 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. a6
Kb6 5. a7 Kxa7 6. Kxh4 b3 (s=5)
12 0.14 -7.77 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. a6
Kb6 5. a7 Kxa7 6. Kh3 b3 7. Kxh4 (s=4)
12-> 0.19 -7.77 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. a6
Kb6 5. a7 Kxa7 6. Kh3 b3 7. Kxh4 (s=2)
13 0.19 -1 1. c6
13 0.22 -8.93 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. a6
b3 5. Kxh4 b2 6. Kg5 b1=Q 7. Kh6 Qf5
13-> 0.30 -8.93 1. c6 Kxc6 2. Kg4 b5 3. a5 b4 4. a6
b3 5. Kxh4 b2 6. Kg5 b1=Q 7. Kh6 Qf5
(s=2)
14 0.30 -1 1. c6
14 0.53 -10.03 1. c6 Kxc6 2. Kf4 b5 3. a5 b4 4. Ke3
Kb5 5. a6 Kb6 6. Ke2 Kxa6 7. Kf3 h3
14-> 0.66 -10.03 1. c6 Kxc6 2. Kf4 b5 3. a5 b4 4. Ke3
Kb5 5. a6 Kb6 6. Ke2 Kxa6 7. Kf3 h3
15 1.06 -10.36 1. c6 Kxc6 2. Kf4 b5 3. a5 b4 4. Ke3
h3 5. Kf2 b3 6. Kg3 b2 7. Kxh3 b1=Q
8. Kg2 Qe4+ 9. Kf1 Qxd4
15-> 1.33 -10.36 1. c6 Kxc6 2. Kf4 b5 3. a5 b4 4. Ke3
h3 5. Kf2 b3 6. Kg3 b2 7. Kxh3 b1=Q
8. Kg2 Qe4+ 9. Kf1 Qxd4 (s=2)
16 1.52 -1 1. c6
? 16 1.52 1/9* 1. c6
White(1): ?
time=3.22 cpu=13337795% mat=0 n=1417135 fh=93% nps=440K
ext-> chk=149577 cap=827 pp=23975 1rep=2437 mate=16
predicted=0 nodes=1417135 evals=535770 50move=0
endgame tablebase-> probes=2324 hits=2324
SMP-> split=1133 stop=79 data=8/64 cpu=715827:33 elap=3.22
White(1): c6
time used: 3.22
egtb not enabled
============================
White(1): tbpath e:\t
0 piece tablebase files found
17kb of RAM used for TB indices and decompression tables
White(1): 8/2k5/1p6/2Pp4/P2P3p/5K2/8/8 w - - 0 1
White(1): g
time surplus 0.00 time limit 22.50 (3:30)
depth time score variation (1)
starting thread 1
1 0.00 -0.78 1. Kf4
1-> 0.00 -0.78 1. Kf4
2 0.00 -1 1. Kf4
2 0.00 -1.28 1. Kf4 h3
2 0.00 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
2-> 0.00 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
3 0.00 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
3-> 0.00 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4 0.00 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4-> 0.00 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
5 0.00 -0.40 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5
5-> 0.00 -0.40 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5
6 0.00 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3
6-> 0.00 -0.50 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3
7 0.00 -0.40 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6
7-> 0.03 -0.40 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6 (s=2)
8 0.03 -0.40 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6 Kc3
8-> 0.03 -0.40 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6 Kc3 (s=3)
9 0.03 -0.30 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kb4
4. Kg5 Kc4 5. a5 Kb5 6. a6 Kxa6 (s=2)
9-> 0.03 -0.30 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kb4
4. Kg5 Kc4 5. a5 Kb5 6. a6 Kxa6 (s=3)
10 0.03 -0.30 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kb4
4. Kg5 Kc4 5. a5 Kb5 6. a6 Kxa6 (s=2)
10-> 0.05 -0.30 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kb4
4. Kg5 Kc4 5. a5 Kb5 6. a6 Kxa6 (s=4)
11 0.05 -1 1. cxb6+
11 0.05 -1.20 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6 Kc3 6. Ke5 Kc4 7.
Ke6 Kxd4 (s=3)
11-> 0.06 -1.20 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6 Kc3 6. Ke5 Kc4 7.
Ke6 Kxd4 (s=6)
12 0.06 -1.20 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6 Kc3 6. Ke5 Kc4 7.
Ke6 Kxd4 (s=5)
12-> 0.08 -1.20 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6 Kc3 6. Ke5 Kc4 7.
Ke6 Kxd4 (s=6)
13 0.08 -1 1. cxb6+
13 0.08 -6.35 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6 Kc3 6. Ke5 Kc4 7.
Ke6 Kxd4 8. Kd7 (s=5)
13-> 0.17 -6.35 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg5 Kb3 5. Kf6 Kc3 6. Ke5 Kc4 7.
Ke6 Kxd4 8. Kd7 (s=7)
14 0.17 +1 1. cxb6+!!
14 0.20 +3 1. cxb6+!!
14 0.20 +M 1. cxb6+!!
14 0.20 -1.86 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc3 6. Ke2 Kxd4 7.
Kd2 Kc4 8. Kc2 d4 (s=6)
14-> 0.27 -1.86 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc3 6. Ke2 Kxd4 7.
Kd2 Kc4 8. Kc2 d4 (s=6)
15 0.28 -1 1. cxb6+
15 0.28 -2.96 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf5 Kc3 6. Ke6 Kxd4 7.
Kd6 Ke4 8. Kc5 d4 9. Kc4 (s=5)
15-> 0.34 -2.96 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf5 Kc3 6. Ke6 Kxd4 7.
Kd6 Ke4 8. Kc5 d4 9. Kc4 (s=6)
16 0.34 -1 1. cxb6+
16 0.36 -6.69 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc3 6. Ke2 Kxd4 7.
Kd2 Ke4 8. Ke2 d4 9. Kf2 Kd3 (s=5)
16-> 0.42 -6.69 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc3 6. Ke2 Kxd4 7.
Kd2 Ke4 8. Ke2 d4 9. Kf2 Kd3 (s=6)
17 0.45 -6.69 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc3 6. Ke2 Kxd4 7.
Kd2 Ke4 8. Ke2 d4 9. Kf2 Kd3 10. Kf3
(s=5)
17-> 0.53 -6.69 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc3 6. Ke2 Kxd4 7.
Kd2 Ke4 8. Ke2 d4 9. Kf2 Kd3 10. Kf3
(s=8)
18 0.55 +1 1. cxb6+!!
18 0.55 +3 1. cxb6+!!
18 0.58 +M 1. cxb6+!!
18 0.63 -2.74 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc4 6. Ke2 Kxd4 7.
Kd2 Kc4 8. Kc2 d4 9. Kd2 d3 10. Ke3
Kc3 (s=7)
18-> 0.97 -2.74 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc4 6. Ke2 Kxd4 7.
Kd2 Kc4 8. Kc2 d4 9. Kd2 d3 10. Ke3
Kc3 (s=7)
19 0.98 -2.94 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc4 6. Ke2 Kxd4 7.
Kd2 Kc4 8. Kc2 d4 9. Kd2 d3 10. Ke3
Kc3 11. Kf3 (s=6)
19-> 1.70 -2.94 1. cxb6+ Kxb6 2. Kg4 Ka5 3. Kxh4 Kxa4
4. Kg4 Kb3 5. Kf3 Kc4 6. Ke2 Kxd4 7.
Kd2 Kc4 8. Kc2 d4 9. Kd2 d3 10. Ke3
Kc3 11. Kf3 (s=9)
20 1.72 +1 1. cxb6+!!
? 20 1.73 2/9* 1. Kf4
White(1): ?
time=2.31 cpu=18591820% mat=0 n=7635562 fh=92% nps=3.31M
ext-> chk=767194 cap=14880 pp=84650 1rep=13636 mate=46
predicted=0 nodes=7635562 evals=2942189 50move=0
endgame tablebase-> probes=0 hits=0
SMP-> split=3718 stop=173 data=8/64 cpu=715827:27 elap=2.31
White(1): cxb6+
time used: 2.31
learning position, wtm=1 value=-294
Black(1):
===========================================================
one of my 5 man egtb's is corrupted I would assumed - they were all generated by
me...I will have to a look and see if it just one or all of them...
Best,
Michael
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