Author: Tim Foden
Date: 04:19:16 10/03/01
Go up one level in this thread
On October 01, 2001 at 15:34:02, Dann Corbit wrote:
>[D]8/p7/K6p/1P4p1/2k5/8/6PP/8 w - - bm h3; c0 "Draws."; id "(JAFM) CCC#191202";
I ran GLC on this position (see analysis below). It found h3 after 22 minutes,
with a score of -0.249 (Duron 920Mhz, 24MB hash). I didn't leave it long enough
to find out whether it would see the draw.
The only other thing to note is that there is a bug, which is shown by the "Bad
move from hash table! (Pa5xh3)" message! I have now fixed the bug (incorrect
movegen for ep-capture when king is in check).
Cheers, Tim.
~~~~~~~~~~~~~~~~~~~~~~~~~
>anal
Game stage: Endgame
Current eval: -0.01
Ply Time Score Nodes Principal Variation
6 0.03 +0.141 5128 h3 Kc5 2. g3 h5 3. g4 hxg4 4. hxg4
6 0.04 +0.141 7849 h3 Kc5 2. g3 h5 3. g4 hxg4 4. hxg4
7 0.04 ++ 8912 h3 (a=-0.26 b=0.54 e=0.54)
7 0.05 -- 11545 h3 (a=0.54 b=321.00 e=0.54)
7 0.05 +0.000 12915 h3 h5 2. Ka5 Kd5 3. Ka6 Kc4
7 0.05 +0.091 16277 Ka5 h5 2. Ka6 g4 3. h3 {ht}
7 0.06 +0.091 17389 Ka5 h5 2. Ka6 g4 3. h3 {ht}
8 0.07 +0.000 24114 Ka5 h5 2. Ka4 Kd5 3. Ka5 Kc4
8 0.08 +0.000 30656 Ka5 h5 2. Ka4 Kd5 3. Ka5 Kc4
9 0.10 -0.050 38078 Ka5 h5 2. Ka4 Kd4 3. Ka5 Kc3 4. h3 g4 5. Ka6
9 0.12 -0.050 50502 Ka5 h5 2. Ka4 Kd4 3. Ka5 Kc3 4. h3 g4 5. Ka6
10 0.18 -0.010 89619 Ka5 g4 2. h3 gxh3 3. gxh3 h5 4. h4 Kb3 5. b6 axb6+
6. Kxb6 Kc4 7. Kc6
10 0.21 -0.010 101680 Ka5 g4 2. h3 gxh3 3. gxh3 h5 4. h4 Kb3 5. b6 axb6+
6. Kxb6 Kc4 7. Kc6
11 0.36 -0.046 203682 Ka5 h5 2. Ka4 Kd4 3. h3 Kc3 4. g4 h4 5. Ka3 Kc4 6.
Ka4
11 0.41 -0.046 225990 Ka5 h5 2. Ka4 Kd4 3. h3 Kc3 4. g4 h4 5. Ka3 Kc4 6.
Ka4
12 0.41 0/8 Ka5 >
12 1.02 -0.152 344785 Ka5 h5 2. Ka4 h4 3. Ka5 g4 4. Ka4 Kd4 5. Ka5 h3 6.
gxh3 gxh3 7. Ka6
12 1.14 -0.127 421056 h3 h5 2. g4 h4 3. Ka5 Kb3 4. Ka6 Kb4 5. b6 axb6 6.
Kxb6 Kc4 7. Kc6
12 1.23 -0.049 483991 g4 Kb4 2. h3 Ka4 3. b6 axb6 4. Kxb6 Kb4 5. Kc6 Kc4
6. Kd6 Kd4 7. Ke6
12 1.24 -0.049 486734 g4 Kb4 2. h3 Ka4 3. b6 axb6 4. Kxb6 Kb4 5. Kc6 Kc4
6. Kd6 Kd4 7. Ke6
13 1.27 -0.049 513122 g4 Kb4 2. h3 Ka4 3. b6 axb6 4. Kxb6 Kb4 5. Kc6 Kc4
6. Kd6 Kd4 7. Ke6 Ke4
13 1.39 -0.049 581453 g4 Kb4 2. h3 Ka4 3. b6 axb6 4. Kxb6 Kb4 5. Kc6 Kc4
6. Kd6 Kd4 7. Ke6 Ke4
14 1.45 -0.049 622343 g4 Kb4 2. h3 Ka4 3. b6 axb6 4. Kxb6 Kb4 5. Kc6 Kc4
6. Kd6 Kd4 7. Ke6 Ke4 8. Kd6
14 1.63 -0.049 743692 g4 Kb4 2. h3 Ka4 3. b6 axb6 4. Kxb6 Kb4 5. Kc6 Kc4
6. Kd6 Kd4 7. Ke6 Ke4 8. Kd6
15 1.73 -0.049 811100 g4 Kb4 2. h3 Ka4 3. b6 axb6 4. Kxb6 Kb4 5. Kc6 Kc4
6. Kd6 Kd4 7. Ke6 Ke4 8. Kd6 Kd4
15 2.04 -0.049 1012976 g4 Kb4 2. h3 Ka4 3. b6 axb6 4. Kxb6 Kb4 5. Kc6 Kc4
6. Kd6 Kd4 7. Ke6 Ke4 8. Kd6 Kd4
16 2.37 -0.049 1254557 g4 Kb4 2. h3 Kc4 3. Kxa7 Kxb5 4. Kb7 Kc5 5. Kc7 Kd5
6. Kd7 Ke5 7. Ke7 Kf4 8. Ke6 Ke4
16 2.83 -0.049 1551248 g4 Kb4 2. h3 Kc4 3. Kxa7 Kxb5 4. Kb7 Kc5 5. Kc7 Kd5
6. Kd7 Ke5 7. Ke7 Kf4 8. Ke6 Ke4
17 3.19 -0.049 1801314 g4 Kb4 2. h3 Kc4 3. Ka5 Kb3 4. Ka6 Kb4 5. b6 axb6
6. Kxb6 Kc4 7. Kc6 Kd4 8. Kd6 Ke4 9. Ke6 Kd4
17 4.27 -0.049 2489265 g4 Kb4 2. h3 Kc4 3. Ka5 Kb3 4. Ka6 Kb4 5. b6 axb6
6. Kxb6 Kc4 7. Kc6 Kd4 8. Kd6 Ke4 9. Ke6 Kd4
18 4.74 -0.049 2805734 g4 Kb4 2. h3 Kc4 3. Ka5 Kb3 4. Ka6 Ka4 5. b6 axb6
6. Kxb6 Kb4 7. Kc6 Kc4 8. Kd6 Kd4 9. Ke6 Ke4 10.
Kd6
18 5.78 -0.049 3490597 g4 Kb4 2. h3 Kc4 3. Ka5 Kb3 4. Ka6 Ka4 5. b6 axb6
6. Kxb6 Kb4 7. Kc6 Kc4 8. Kd6 Kd4 9. Ke6 Ke4 10.
Kd6
19 6.52 -0.049 3985432 g4 Kb4 2. h3 Kc4 3. Ka5 Kb3 4. Ka6 Ka4 5. b6 axb6
6. Kxb6 Kb4 7. Kc6 Kc4 8. Kd6 Kd4 9. Ke6 Ke4 10.
Kd6 Kd4
19 8.17 -0.049 5068586 g4 Kb4 2. h3 Kc4 3. Ka5 Kb3 4. Ka6 Ka4 5. b6 axb6
6. Kxb6 Kb4 7. Kc6 Kc4 8. Kd6 Kd4 9. Ke6 Ke4 10.
Kd6 Kd4
20 9.62 -0.049 6020443 g4 Kb4 2. h3 Kc4 3. Ka5 Kb3 4. Ka6 Ka4 5. b6 axb6
6. Kxb6 Kb4 7. Kc6 Kc4 8. Kd6 Kd4 9. Ke6 Ke3 10.
Kf6 Ke4 11. Ke6
20 13.18 -0.049 8353788 g4 Kb4 2. h3 Kc4 3. Ka5 Kb3 4. Ka6 Ka4 5. b6 axb6
6. Kxb6 Kb4 7. Kc6 Kc4 8. Kd6 Kd4 9. Ke6 Ke3 10.
Kf6 Ke4 11. Ke6
21 7:31 -0.227 330436k Ka5 h5 2. g3 g4 3. Ka4 Kd4 4. Ka5 Kc5 5. Ka4 Kc4 6.
Ka5 Kb3 {ht}
21 7:45 -0.227 339551k Ka5 h5 2. g3 g4 3. Ka4 Kd4 4. Ka5 Kc5 5. Ka4 Kc4 6.
Ka5 Kb3 {ht}
22 10:03 -0.192 439147k Ka5 h5 2. g3 g4 3. Ka4 Kd4 4. Ka5 Kc5 5. Ka4 Kc4 6.
Ka5 Kb3 7. b6 axb6+ 8. Kxb6 Kc3 9. Kc6 Kd4 10.
Kd6 Ke4 11. Ke6 Ke3 12. Ke5 Kf3
22 10:14 -0.192 446823k Ka5 h5 2. g3 g4 3. Ka4 Kd4 4. Ka5 Kc5 5. Ka4 Kc4 6.
Ka5 Kb3 7. b6 axb6+ 8. Kxb6 Kc3 9. Kc6 Kd4 10.
Kd6 Ke4 11. Ke6 Ke3 12. Ke5 Kf3
23 13:02 -0.278 555982k Ka5 h5 2. g3 g4 3. Ka4 Kd4 4. Ka5 Kc5 5. Ka4 Kc4 6.
Ka5 Kb3 7. b6 axb6+ 8. Ka6 Kc3 9. Kxb6 Kc4 10.
Kc6 Kd4 11. Kd6 Ke4 12. Ke6 Kd4
23 22:25 -0.249 931617k h3 h5 2. Kxa7 Kxb5 3. Kb7 g4 4. hxg4 hxg4 5. Kc7
Kc5 6. Kd7 Kd5 7. Ke7 Ke5 8. Kf7 Kf5 9. Kg7 Kg5
10. g3 Kf5 11. Kh6 Kf6 12. Kh5 Kf5
Bad move from hash table! (Pa5xh3)>
FEN 8/6K1/8/p5k1/6pP/6P1/8/8 b - h3 0 0
23 22:31 -0.249 935186k h3 h5 2. Kxa7 Kxb5 3. Kb7 g4 4. hxg4 hxg4 5. Kc7
Kc5 6. Kd7 Kd5 7. Ke7 Ke5 8. Kf7 Kf5 9. Kg7 Kg5
10. g3 Kf5 11. Kh6 Kf6 12. Kh5 Kf5
24 25:09 -0.227 1031m h3 h5 2. Kxa7 Kxb5 3. Kb7 g4 4. hxg4 hxg4 5. Kc7
Kc5 6. Kd7 Kd5 7. Ke7 Ke5 8. Kf7 Kf5 9. Kg7 Kg5
10. g3 Kf5 11. Kh6 Kf6 12. Kh5 Kf5 13. Kh4
24 27:54 -0.227 1137m h3 h5 2. Kxa7 Kxb5 3. Kb7 g4 4. hxg4 hxg4 5. Kc7
Kc5 6. Kd7 Kd5 7. Ke7 Ke5 8. Kf7 Kf5 9. Kg7 Kg5
10. g3 Kf5 11. Kh6 Kf6 12. Kh5 Kf5 13. Kh4
25 50:46 0/8 h3 >exit
local: t=50:50 nps=639613.0 n=1950746022 (44.9% / 55.1%) fh=87.2%
total: t=50:50 nps=639613.0 n=1950746022 draws=14234789
trans: probes=860419444 hits=517563678 (60.15%) draft=463423917 (53.86%)
tcuts: exact=5628 (0.00%) upper=199286981 (23.16%) lower=52588828 (6.11%)
tstor: exact=8749 (0.00%) upper=302970662 (72.67%) lower=113925933 (27.33%)
ext: check=219517757 recap=5666889 ppush=6251881 1rep=2222022 thrt=0
q-moves: gen=201694532 tested=177553537 made/un=73245882 max-dep=7
max eval diff: part-1=6.178 part-2=0.868
>quit
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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