Jeroen wrote:Hi Larry,
Looking at the game output, Komodo expected 60.Kd2 after 59... f3. But instead 60.Bc5! is much stronger, leading to a drop in Komodo's score to -3.54 at the next move. So IMO Komodo missed this 60.Bc5! move. The win is quite easy after 60... Kf5 61.b8Q Nxb8 62.Nxb8 Bf6 63.d6, when my Houdini 5.01 already has +13 for white on my slow notebook within a few seconds.
When I feed the position after 59... f3 to Houdini 5.01, it also thinks white is just at +1, expecting 60.Kd2. But as soon as it finds 60.Bc5! the score quickly rises to +2 and not much later +6.
I agree with you that it is odd the GUI already awards the game to white, while Komodo's score hasn't even reached -5.
I searched for black's 59th move with the just updated Komodo 11.2.2 on my lowly laptop and it sees the score change better now:
FEN: 7b/1P1n4/2NB2k1/3Pp3/5p2/8/2K5/8 b - - 0 59
Komodo-11.2.2-64bit:
1 00:00 33 33,000 -1.00 f4-f3
1 00:00 286 286,000 -0.91 Kg6-f5
2 00:00 20,200 20,200,000 -0.91 Kg6-f5 b7-b8Q
3 00:00 20,543 20,543,000 -0.91 Kg6-f5 b7-b8Q Nd7xb8
4 00:00 22,435 22,435,000 -1.07 Kg6-f5 Kc2-d3 f4-f3 Nc6-e7+ Kf5-g4
5+ 00:00 39,218 2,509,871 -0.97 Kg6-f5 Kc2-d3 Bh8-f6
5 00:00 44,134 2,653,958 -0.97 Kg6-f5 Kc2-d3 Bh8-f6 b7-b8Q Nd7xb8
6 00:00 44,398 2,591,751 -0.97 Kg6-f5 Kc2-d3 Bh8-f6 b7-b8Q Nd7xb8 Bd6xb8
7- 00:00 45,075 2,556,619 -1.05 Kg6-f5 Kc2-d3
7- 00:00 70,509 3,185,666 -1.04 Kg6-h5
7- 00:00 72,405 3,198,920 -1.48 Kg6-h5 b7-b8Q
7 00:00 73,661 3,254,411 -1.05 Kg6-f5 Kc2-d3 Bh8-f6 b7-b8Q Nd7xb8 Bd6xb8 e5-e4+ Kd3-e2
8- 00:00 74,377 3,214,940 -1.11 Kg6-f5 Kc2-d3
8 00:00 76,878 2,593,715 -1.17 Kg6-f5 Kc2-d3 Bh8-f6 b7-b8Q e5-e4+ Kd3-e2 f4-f3+ Ke2-e3 Bf6-g5+ Ke3-f2 Nd7xb8 Bd6xb8
9 00:00 81,919 2,763,789 -1.16 Kg6-f5 Kc2-d3 Bh8-f6 b7-b8Q e5-e4+ Kd3-e2 f4-f3+ Ke2-f2 Nd7xb8 Bd6xb8 Bf6-h4+ Bb8-g3 Bh4xg3+ Kf2xg3 Kf5-g5
10+ 00:00 93,300 2,061,145 -1.10 Kg6-f5 Kc2-d3 Bh8-f6
10 00:00 94,651 2,090,990 -1.07 Kg6-f5 Kc2-d3 Bh8-f6 b7-b8Q e5-e4+ Kd3-e2 Nd7xb8 Bd6xb8 Bf6-g5 Bb8-d6 f4-f3+ Ke2-f2 Kf5-g4 Bd6-c5 Bg5-h4+ Kf2-f1
11 00:00 103,691 2,290,698 -1.10 Kg6-f5 Kc2-d3 Bh8-f6 b7-b8Q e5-e4+ Kd3-e2 Nd7xb8 Bd6xb8 Bf6-g5 Bb8-c7 Bg5-f6 Bc7-d6 Bf6-g5 Bd6-f8 Bg5-f6
12 00:00 120,775 1,983,442 -1.07 Kg6-f5 Kc2-d3 Bh8-f6 b7-b8Q e5-e4+ Kd3-e2 Nd7xb8 Bd6xb8 Bf6-g5 Bb8-d6 Kf5-g4 Nc6-e5+ Kg4-f5 Ne5-c4 Bg5-d8 Bd6-e5 f4-f3+ Ke2-e3 Bd8-g5+ Ke3-f2
13- 00:00 157,297 1,210,917 -1.13 Kg6-f5 Nc6-b8
13- 00:00 158,562 1,089,554 -1.22 Kg6-f5 Nc6-b8
13- 00:00 164,831 1,132,631 -1.50 Kg6-f5 Nc6-b8
13+ 00:00 234,431 924,129 -1.22 f4-f3 Kc2-d3 e5-e4+
13 00:00 261,289 952,941 -1.19 f4-f3 Kc2-d3 e5-e4+ Kd3-e3 Kg6-f5 Bd6-g3 Bh8-b2 b7-b8Q Nd7xb8 Bg3xb8 Bb2-f6 Bb8-c7 Bf6-g5+ Ke3-f2 Bg5-f6 Bc7-g3 Bf6-g5 Bg3-b8
14 00:00 310,039 974,281 -1.18 f4-f3 Kc2-d3 e5-e4+ Kd3-e3 Kg6-f5 Bd6-g3 Bh8-b2 b7-b8Q Nd7xb8 Bg3xb8 Bb2-f6 Bb8-c7 Bf6-g5+ Ke3-f2 Bg5-f6 Bc7-g3 Bf6-g5 Bg3-b8 Bg5-f6
15- 00:00 356,357 1,011,665 -1.24 f4-f3 Kc2-d2
15- 00:00 383,492 1,032,945 -1.33 f4-f3 Kc2-d2
15- 00:00 438,168 1,062,125 -1.61 f4-f3 Kc2-d2
15+ 00:00 535,318 1,114,474 -1.46 f4-f3 Kc2-d2 e5-e4
15 00:00 573,700 1,146,335 -1.35 f4-f3 Kc2-d2 e5-e4 Nc6-e5+ Bh8xe5 Bd6xe5 Kg6-f5 b7-b8Q Nd7xb8 Be5xb8 f3-f2 Kd2-e2 e4-e3 Bb8-g3 Kf5-f6 Bg3-h2 Kf6-f5 Bh2-c7 Kf5-f6 Bc7-g3 Kf6-f5 d5-d6 Kf5-e6
16+ 00:00 674,620 1,198,325 -1.29 f4-f3 Kc2-d2 e5-e4
16+ 00:00 758,581 1,230,724 -1.21 f4-f3 Kc2-d2 e5-e4
16 00:00 771,491 1,251,669 -1.21 f4-f3 Kc2-d2 e5-e4 Nc6-e5+ Bh8xe5 Bd6xe5 Kg6-f5 b7-b8Q Nd7xb8 Be5xb8 f3-f2 Kd2-e2 e4-e3 Bb8-g3 Kf5-f6 Bg3-h2 Kf6-f5 Bh2-c7 Kf5-f6 Bc7-g3 Kf6-f5 Bg3-b8 Kf5-f6 Bb8-c7 Kf6-f5
17 00:00 878,189 1,293,630 -1.21 f4-f3 Kc2-d2 e5-e4 Nc6-e5+ Bh8xe5 Bd6xe5 Kg6-f5 b7-b8Q Nd7xb8 Be5xb8 f3-f2 Kd2-e2 e4-e3 Bb8-g3 Kf5-f6 Bg3-h2 Kf6-f5 Bh2-c7 Kf5-f6 Bc7-g3 Kf6-f5 Bg3-b8 Kf5-f6 Bb8-c7 Kf6-f5 Bc7-h2
18 00:00 1,176,151 1,467,893 -1.21 f4-f3 Kc2-d2 e5-e4 Nc6-e5+ Bh8xe5 Bd6xe5 Kg6-f5 b7-b8Q Nd7xb8 Be5xb8 f3-f2 Kd2-e2 e4-e3 Bb8-g3 Kf5-f6 Bg3-h2 Kf6-f5 Bh2-c7 Kf5-f6 Bc7-g3 Kf6-f5 Bg3-b8 Kf5-f6 Bb8-c7 Kf6-f5 Bc7-h2 Kf5-f6
19- 00:00 1,303,768 1,537,228 -1.27 f4-f3 Kc2-d2
19 00:01 1,755,740 1,701,949 -1.21 f4-f3 Kc2-d2 e5-e4 Nc6-e5+ Bh8xe5 Bd6xe5 Kg6-f5 b7-b8Q Nd7xb8 Be5xb8 f3-f2 Kd2-e2 e4-e3 Bb8-g3 Kf5-f6 Bg3-h2 Kf6-f5 Bh2-c7 Kf5-f6 Bc7-g3 Kf6-f5 Bg3-b8 Kf5-f6 Bb8-c7 Kf6-f5 Bc7-h2 Kf5-f6 Bh2-d6
20 00:01 2,274,880 1,769,254 -1.21 f4-f3 Kc2-d2 e5-e4 Nc6-e5+ Bh8xe5 Bd6xe5 Kg6-f5 b7-b8Q Nd7xb8 Be5xb8 f3-f2 Kd2-e2 e4-e3 Bb8-g3 Kf5-f6 Bg3-h2 Kf6-f5 Bh2-c7 Kf5-f6 Bc7-g3 Kf6-f5 Bg3-b8 Kf5-f6 Bb8-c7 Kf6-f5 Bc7-h2 Kf5-f6 Bh2-f4
21+ 00:01 3,187,600 1,969,451 -1.15 f4-f3 Kc2-d2 e5-e4
21+ 00:02 4,230,811 2,133,777 -1.07 f4-f3 Kc2-d2 e5-e4
21 00:02 5,181,860 2,210,186 -1.04 f4-f3 Kc2-d2 e5-e4 Nc6-e5+ Bh8xe5 Bd6xe5 f3-f2 Kd2-e2 Kg6-f5 b7-b8Q Nd7xb8 Be5xb8 e4-e3 Bb8-g3 Kf5-f6 Bg3-h2 Kf6-f5 Bh2-b8 Kf5-f6 Bb8-g3 Kf6-f5 Bg3-c7 Kf5-f6 Bc7-f4 Kf6-f5 Bf4-h2 Kf5-f6 Bh2-c7 Kf6-f5
22 00:02 6,511,519 2,326,491 -1.08 f4-f3 Kc2-d2 e5-e4 Nc6-e5+ Bh8xe5 Bd6xe5 f3-f2 Kd2-e2 Kg6-f5 b7-b8Q Nd7xb8 Be5xb8 e4-e3 Bb8-c7 Kf5-f6 Bc7-f4 Kf6-f5 Bf4-h2 Kf5-f6 Bh2-c7 Kf6-f5 Bc7-g3 Kf5-f6 Bg3-h2 Kf6-f5 Bh2-b8 Kf5-f6 Bb8-g3 Kf6-f5 Bg3xf2
23+ 00:03 8,554,001 2,263,231 -1.02 f4-f3 Kc2-d2 e5-e4
23 00:03 9,001,399 2,302,062 -1.02 f4-f3 Kc2-d2 e5-e4 Nc6-e5+ Bh8xe5 Bd6xe5 f3-f2 Kd2-e2 e4-e3 b7-b8Q Nd7xb8 Be5xb8 Kg6-f5 Bb8-c7 Kf5-f6 Bc7-f4 Kf6-f5 Bf4-h2 Kf5-f6 Bh2-c7 Kf6-f5 Bc7-g3 Kf5-f6 Bg3-h2 Kf6-f5 Bh2-b8 Kf5-f6 Bb8-g3 Kf6-f5 Ke2-f1 Kf5-f6
24+ 00:04 11,088,804 2,290,457 -0.96 f4-f3 Kc2-d2 e5-e4
24- 00:06 16,204,967 2,537,219 -1.03 f4-f3 Bd6-c5
24- 00:06 17,712,648 2,560,824 -1.14 f4-f3 Bd6-c5
24+ 00:07 20,376,019 2,630,568 -1.03 f4-f3 Bd6-c5 Kg6-f5
24 00:08 22,846,108 2,684,649 -0.90 f4-f3 Bd6-c5 Bh8-f6 d5-d6 Kg6-f7 b7-b8Q Nd7xb8 Nc6xb8 Kf7-e6 d6-d7 Bf6-d8 Kc2-d3 Ke6-d5 Bc5-f2 e5-e4+ Kd3-d2 Bd8-g5+ Bf2-e3 Bg5-d8 Kd2-e1 Kd5-d6 Be3-f4+ Kd6-d5 Ke1-f1 Kd5-e6 Kf1-f2 Ke6-d5 Kf2-g1 Bd8-b6+ Kg1-f1 Bb6-d8 Kf1-f2 Kd5-e6
25+ 00:10 28,393,864 2,783,820 -0.84 f4-f3 Bd6-c5 Bh8-f6
25+ 00:13 38,104,097 2,908,008 -0.76 f4-f3 Bd6-c5 Bh8-f6
25- 00:13 38,459,811 2,909,821 -0.84 f4-f3 Bd6-c5
25- 00:14 40,869,102 2,904,936 -1.49 f4-f3 Bd6-c5
25 00:14 43,823,202 2,930,833 -1.77 f4-f3 Bd6-c5 Kg6-f5 b7-b8Q Nd7xb8 Nc6xb8 Bh8-f6 d5-d6 Kf5-e6 d6-d7 Bf6-d8 Kc2-c3 e5-e4 Kc3-b4 Bd8-f6 Kb4-c4 Bf6-g5 Kc4-b5 Ke6-f5 Bc5-e3 Kf5-g4 Nb8-a6 Bg5-f6 Na6-c5 Kg4-f5 Kb5-c4 Bf6-h4 Nc5-b7 Kf5-g4 Nb7-c5
26- 00:15 46,169,897 2,947,615 -1.83 f4-f3 Bd6-c5
26- 00:16 48,154,218 2,957,074 -1.91 f4-f3 Bd6-c5
26- 00:16 50,078,171 2,957,977 -2.02 f4-f3 Bd6-c5
26 00:17 51,629,446 2,961,809 -2.06 f4-f3 Bd6-c5 Kg6-f5 b7-b8Q Nd7xb8 Nc6xb8 Bh8-f6 d5-d6 Kf5-e6 d6-d7 Bf6-d8 Kc2-c3 e5-e4 Kc3-b4 Bd8-f6 Kb4-c4 Bf6-h4 Kc4-b5 Ke6-e5 Bc5-f2 Bh4-f6 Nb8-c6+ Ke5-f4 Nc6-b4 Bf6-g5 Kb5-c6 Kf4-e5 Bf2-e3 Bg5-d8 Nb4-a6 Ke5-f5 Na6-c5 Bd8-h4 Nc5-b7
27 00:19 55,947,880 2,943,565 -2.06 f4-f3 Bd6-c5 Kg6-f5 b7-b8Q Nd7xb8 Nc6xb8 Bh8-f6 d5-d6 Kf5-e6 d6-d7 Bf6-d8 Kc2-c3 e5-e4 Kc3-b4 Bd8-f6 Kb4-c4 Bf6-h4 Kc4-b5 Ke6-e5 Bc5-f2 Bh4-f6 Nb8-c6+ Ke5-f4 Nc6-b4 Kf4-e5 Kb5-c6 Bf6-d8 Bf2-b6 Bd8-g5 Nb4-d5 Bg5-h4 Bb6-e3 Ke5-f5 Nd5-b4 Kf5-e6 Be3-c5
28- 00:20 59,515,105 2,961,670 -2.12 f4-f3 Bd6-c5
28 00:22 68,277,287 2,998,825 -2.18 f4-f3 Bd6-c5 Kg6-f5 b7-b8Q Nd7xb8 Nc6xb8 Bh8-f6 d5-d6 Kf5-e6 d6-d7 Bf6-d8 Kc2-c3 e5-e4 Kc3-b4 Bd8-f6 Kb4-c4 Bf6-h4 Kc4-b5 Ke6-e5 Bc5-f2 Bh4-f6 Nb8-c6+ Ke5-f4 Nc6-b4 Kf4-e5 Kb5-c6 Bf6-d8 Bf2-b6 Bd8-g5 Nb4-c2 Bg5-e7 Bb6-c7+ Ke5-e6 d7-d8Q Be7xd8 Bc7xd8 Ke6-e5 Bd8-c7+ Ke5-f6