Re: Stockfish misevaluations:
Posted: Mon Apr 22, 2019 7:49 pm
SF dev is still +5.38 at 80/88.
Code: Select all
4b3/5k2/p5p1/P2p1p1p/1PpPrP1P/2P2QP1/5K2/8 w - -
Engine: Kaissa IV (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.
28/52 0:01 +2.76 1.b5 Bxb5 2.Qd1 Re8 3.Qc1 Ke6 4.Ke3 Rc8
5.Qb1 Kd7 6.Kd2 Re8 7.Qc1 Bc6 8.Qa3 Rb8
9.Qc5 Rb2+ 10.Kc1 Rg2 11.Qa7+ Kd6
12.Qxa6 Rxg3 13.Kd2 Rg2+ 14.Ke1 (3.304.617) 2214
29/54 0:01 +2.92 1.b5 Bxb5 2.Qd1 Re8 3.Qc1 Ke6 4.Ke3 Rb8
5.Kd2 Kd7 6.Qb2 Rg8 7.Qb4 Rc8 8.Qa3 Ke6
9.Qc1 Kd6 10.Qb1 Kd7 11.g4 hxg4
12.h5 Re8 13.hxg6 Ke6 14.Qe1+ (3.398.776) 2218
30/50 0:01 +4.28 1.b5 Bxb5 2.Qh1 Bc6 3.Qb1 Re7 4.Qb6 Bb7
5.Qa7 Rd7 6.Qb8 Bc6 7.Qc8 Bb5 8.Qa8 Kg7
9.Ke1 Re7+ 10.Kd2 Rd7 11.Qe8 Kh7
12.Kd1 Rb7 13.Qe6 Ba4+ 14.Ke1 (3.538.082) 2222
31/95 0:02 +2.88 1.b5 Bxb5 2.Qh1 Ke7 3.Qc1 Re6 4.Qa3+ Rd6
5.Qc5 Bd7 6.Qa7 Kf6 7.Qb8 Ke7 8.Qh8 Be6
9.Qg7+ Bf7 10.Qe5+ Be6 11.Ke1 Rd7
12.Qg7+ Bf7 13.Kd2 Rd8 14.Qe5+ (5.845.525) 2235
32/84 0:02 +2.98 1.b5 Bxb5 2.Qh1 Ke7 3.Qc1 Re6 4.Qa3+ Rd6
5.Qb2 Kd7 6.Qa2 Re6 7.Qa1 Re8 8.Qa3 Rc8
9.Qb4 Ke6 10.Ke3 Kd7 11.Kd2 Ke6
12.Qb1 Re8 13.Qc1 Kd7 14.Qb2 (6.123.939) 2239
33/47 0:02 +3.23 1.b5 Bxb5 2.Qh1 Ke7 3.Qc1 Re6 4.Qa3+ Rd6
5.Qb2 Rc6 6.Qd2 Kd7 7.Qc1 Rd6 8.Kf3 Rc6
9.Qa3 Rc8 10.Qb4 Ke6 11.Ke3 Kd7
12.Kd2 Ke6 13.Qb1 Re8 14.Qc1 (6.239.126) 2231
34/51 0:02 +3.05 1.b5 Bxb5 2.Qh1 Ke7 3.Qc1 Re6 4.Qa3+ Rd6
5.Qc5 Bd7 6.Qa7 Re6 7.Qb7 Rd6 8.Qb2 Bb5
9.Qc2 Re6 10.Qa2 Rd6 11.Kf3 Kf7
12.Qb1 Re6 13.Qb2 Re1 14.Qa3 (6.724.439) 2245
35/31 0:03 +3.15++ 1.b5 (6.739.462) 2244
35/40 0:03 +3.24++ 1.b5 (6.746.374) 2245
35/40 0:03 +3.37++ 1.b5 (6.759.836) 2245
35/61 0:03 +3.55++ 1.b5 (7.027.213) 2253
35/61 0:03 +3.78++ 1.b5 (7.098.549) 2254
35/61 0:03 +3.44 1.b5 Bxb5 2.Qh1 Ke7 3.Qc1 Re6 4.Qa3+ Rd6
5.Ke2 Be8 6.Kd2 Ke6 7.Qc5 Bc6 8.Kc1 Bd7
9.Qa3 Ke7 10.Kc2 Ke6 11.Kb2 Bb5
12.Qc5 Ke7 13.Ka3 Bd7 14.Kb4 (7.148.217) 2252
36/55 0:03 +3.53++ 1.b5 (7.213.738) 2251
36/55 0:03 +3.62++ 1.b5 (7.265.266) 2251
36/55 0:03 +3.34-- 1.b5 Bxb5 (7.462.356) 2255
36/55 0:03 +3.55++ 1.b5 (7.485.887) 2254
36/74 0:03 +3.16-- 1.b5 Bxb5 (8.824.232) 2281
36/74 0:03 +3.47++ 1.b5 (8.841.675) 2281
36/84 0:04 +3.82++ 1.b5 (9.751.143) 2282
36/84 0:04 +3.68 1.b5 Bxb5 2.Qh1 Bd7 3.Qb1 Re6 4.Qb7 Rd6
5.Qc7 Ke7 6.Qc5 Ba4 7.Ke1 Bd7 8.Qb4 Be6
9.Kd2 Bd7 10.Qb7 Ke6 11.Qc7 Ke7
12.Qa7 Rc6 13.Kc1 Kd8 14.Kb2 (9.829.050) 2280
37/43 0:04 +3.77++ 1.b5 (9.866.512) 2278
37/57 0:04 +3.58-- 1.b5 Bxb5 (10.070.091) 2280
37/57 0:04 +3.72++ 1.b5 (10.123.125) 2278
37/81 0:04 +3.90++ 1.b5 (10.427.327) 2280
37/82 0:04 +4.12++ 1.b5 (11.010.589) 2278
37/82 0:05 +4.41++ 1.b5 (11.500.614) 2276
37/82 0:05 +3.45-- 1.b5 Bxb5 (11.953.633) 2277
37/83 0:05 +4.10++ 1.b5 (12.880.748) 2280
37/129 0:06 +3.74 1.b5 Bxb5 2.Qh1 Ke7 3.Qc1 Re6 4.Qa3+ Rd6
5.Qb4 Be8 6.Ke3 Bd7 7.Qc5 Be6 8.Qc7+ Rd7
9.Qb6 Rd6 10.Qc5 Bd7 11.Qc7 Rc6
12.Qb8 Rf6 13.Kf3 Rd6 14.Kf2 (14.363.697) 2273
38/38 0:06 +3.83++ 1.b5 (14.504.164) 2273
38/40 0:06 +3.92++ 1.b5 (14.553.054) 2272
38/41 0:06 +4.06++ 1.b5 (14.590.008) 2271
38/71 0:06 +4.23++ 1.b5 (15.023.089) 2273
38/71 0:06 +3.64-- 1.b5 Bxb5 (15.151.748) 2274
38/71 0:06 +3.35-- 1.b5 Bxb5 (15.258.174) 2274
38/71 0:06 +3.00-- 1.b5 Bxb5 (15.444.045) 2274
38/71 0:06 +2.58-- 1.b5 Bxb5 (15.832.350) 2273
38/71 0:07 +2.52 1.b5 Bxb5 2.Qd1 Kf6 3.Qc2 Be8 4.Qb2 Re6
5.Qa3 Kg7 6.Qc5 Bf7 7.Qc7 Kg8 8.Qd7 Kg7
9.Qd8 Re4 10.Qb8 Re6 11.Kf3 Be8
12.Qc7+ Bf7 13.Qc8 Rd6 14.Qb7 (17.601.876) 2274
39/15 0:08 +2.61++ 1.b5 (18.827.185) 2278
39/30 0:08 +2.71++ 1.b5 (18.859.487) 2278
39/32 0:08 +2.84++ 1.b5 (18.873.853) 2278
39/32 0:08 +3.02++ 1.b5 (18.914.739) 2277
39/38 0:08 +3.25++ 1.b5 (18.964.446) 2277
39/48 0:08 +3.54++ 1.b5 (19.055.007) 2276
39/59 0:08 +3.90++ 1.b5 (19.210.716) 2275
39/116 0:09 +3.35 1.b5 Bxb5 2.Qh1 Ke8 3.Qc1 Re6 4.Qa3 Rc6
5.Qb4 Kf7 6.Kf3 Ke8 7.Kg2 Kf7 8.Kf2 Ke8
9.Kf3 Kf7 10.Qb1 Rc7 11.Qb2 Rc8
12.Qc1 Re8 13.Kf2 Ke6 14.Qb1 (20.563.448) 2256
40/21 0:09 +3.45++ 1.b5 (20.639.782) 2255
40/50 0:09 +3.54++ 1.b5 (20.836.367) 2256
40/50 0:09 +3.67++ 1.b5 (20.979.930) 2256
40/50 0:09 +3.85++ 1.b5 (21.231.117) 2255
40/79 0:09 +4.08++ 1.b5 (21.626.323) 2253
40/79 0:10 +4.37++ 1.b5 (22.910.695) 2255
40/79 0:10 +4.32 1.b5 Bxb5 2.Qh1 Ke8 3.Qc1 Re6 4.Qa3 Rc6
5.Qb4 Kf7 6.Kf1 Re6 7.Qc5 Re3
8.Qxd5+ Kg7 9.Kf2 Rxc3 10.Qe5+ Kf7
11.d5 Rc2+ 12.Kf3 Rd2 13.Qe6+ Kg7
14.Qe7+ (23.482.741) 2254
41/52 0:10 +4.23-- 1.b5 Bxb5 (23.616.796) 2254
41/52 0:10 +4.13-- 1.b5 Bxb5 (23.943.385) 2253
41/52 0:10 +4.00-- 1.b5 Bxb5 (24.207.870) 2253
41/52 0:10 +3.82-- 1.b5 Bxb5 (24.666.925) 2255
41/52 0:10 +3.97++ 1.b5 (24.776.597) 2254
41/52 0:11 +4.27++ 1.b5 (25.123.765) 2254
41/94 0:11 +3.59-- 1.b5 Bxb5 (25.346.308) 2254
41/94 0:11 +4.11++ 1.b5 (26.084.948) 2253
41/95 0:11 +4.38 1.b5 Bxb5 2.Qh1 Kg7 3.Qb1 Re6 4.Qb2 Be8
5.Kg2 Bf7 6.Qb7 Rd6 7.Qc7 Re6 8.Qa7 Rd6
9.Kh3 Kf6 10.Qb8 Ke6 11.Qb7 Be8
12.Qg7 Bf7 13.Qe5+ Kd7 14.Kh2 (26.806.304) 2251
42/53 0:12 +4.28-- 1.b5 Bxb5 (27.581.600) 2254
42/53 0:12 +4.19-- 1.b5 Bxb5 (27.663.400) 2254
42/53 0:12 +4.06-- 1.b5 Bxb5 (27.860.664) 2254
42/53 0:12 +3.88-- 1.b5 Bxb5 (28.181.018) 2257
42/53 0:12 +4.02++ 1.b5 (28.239.486) 2257
42/60 0:12 +4.32++ 1.b5 (29.250.273) 2262
42/72 0:13 +3.88 1.b5 Bxb5 2.Qh1 Ke8 3.Qc1 Re6 4.Qa1 Kf7
5.Qb2 Rf6 6.Qa3 Rc6 7.Qb4 Ke8 8.Kg1 Kf7
9.Kf1 Ke8 10.Kf2 Kf7 11.Qa3 Ke8
12.Ke3 Kf7 13.Kd2 Ke8 14.Qb4 (31.107.630) 2269
43/55 0:13 +3.98++ 1.b5 (31.254.376) 2269
43/66 0:15 +3.79 1.b5 Bxb5 2.Qh1 Ke8 3.Qc1 Re6 4.Qb2 Kf7
5.Qb4 Rc6 6.Kg1 Ke8 7.Qa3 Kf7 8.Kf1 Ke8
9.Kg2 Kf7 10.Kg1 Ke8 11.Qb4 Kf7
12.Kf2 Ke8 13.Ke2 Kf7 14.Kd1 (35.425.486) 2312
44/43 0:15 +3.89++ 1.b5 (35.685.872) 2312
44/43 0:15 +3.98++ 1.b5 (35.803.374) 2312
44/68 0:15 +4.00 1.b5 Bxb5 2.Qh1 Ke8 3.Qc1 Re6 4.Qb2 Kf7
5.Qa3 Rc6 6.Kf3 Ke8 7.Ke2 Re6+ 8.Kd2 Rc6
9.Kc2 Kf7 10.Kc1 Ke8 11.Qb4 Kf7
12.Kd2 Ke8 13.Ke1 Kf7 14.Kf1 (36.269.949) 2316
45/52 0:16 +3.91-- 1.b5 Bxb5 (38.855.678) 2317
45/52 0:16 +4.00++ 1.b5 (38.998.719) 2318
45/63 0:17 +4.13++ 1.b5 (39.713.671) 2320
45/63 0:17 +4.00 1.b5 Bxb5 2.Qh1 Ke8 3.Qc1 Re6 4.Qb2 Kf7
5.Qa3 Rc6 6.Qb4 Ke8 7.Kg1 Kf7 8.Kg2 Ke8
9.Kf2 Kf7 10.Qa3 Ke8 11.Ke3 Re6+
12.Kd2 Rc6 13.Kc2 Kf7 14.Kc1 (39.771.653) 2319
46/23 0:18 +3.91-- 1.b5 Bxb5 (42.763.930) 2323
46/53 0:19 +3.82-- 1.b5 Bxb5 (46.463.159) 2323
46/53 0:20 +3.91++ 1.b5 (46.742.654) 2323
46/53 0:20 +4.09++ 1.b5 (46.906.809) 2323
46/72 0:20 +3.91 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Qb4 Rc6
5.Kf3 Kf7 6.Qa3 Ke8 7.Kg2 Kf7 8.Kf2 Ke8
9.Kg1 Kf7 10.Kg2 Ke8 11.Kh2 Kf7
12.Qb4 Re6 13.Qc5 Re3 14.Qxd5+ (47.426.647) 2323
47/27 0:22 +3.82-- 1.b5 Bxb5 (52.664.713) 2325
47/27 0:22 +3.91++ 1.b5 (52.887.056) 2326
47/77 0:23 +3.82 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Qb4 Rc6
5.Ke1 Kf7 6.Kd2 Ke8 7.Kc2 Kf7 8.Kc1 Ke8
9.Qa3 Kf7 10.Kd2 Ke8 11.Ke1 Kf7
12.Qb4 Ke8 13.Kf2 Kf7 14.Kg1 (53.653.756) 2328
48/44 0:23 +3.91++ 1.b5 (54.025.633) 2328
48/62 0:23 +3.82 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Qb4 Rc6
5.Ke1 Kf7 6.Kd2 Ke8 7.Kc2 Kf7 8.Kc1 Ke8
9.Qa3 Kf7 10.Kb2 Ke8 11.Kc2 Kf7
12.Kc1 Ke8 13.Kd1 Kf7 14.Ke2 (54.953.994) 2331
49/44 0:23 +3.91++ 1.b5 (55.688.181) 2331
49/72 0:26 +3.84 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Qb4 Rc6
5.Ke1 Re6+ 6.Kd1 Rc6 7.Kd2 Kf7 8.Ke2 Re6+
9.Kf2 Rc6 10.Kg2 Ke8 11.Qa3 Kf7
12.Kh3 Ke8 13.Kh2 Kf7 14.Kg2 (61.216.766) 2343
50/76 0:28 +3.75-- 1.b5 Bxb5 (67.484.496) 2347
50/76 0:28 +3.84++ 1.b5 (67.952.091) 2347
50/76 0:30 +3.82 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Qb4 Rc6
5.Ke1 Re6+ 6.Kd2 Rc6 7.Kc2 Kf7 8.Kc1 Ke8
9.Kd2 Kf7 10.Ke2 Re6+ 11.Kf2 Rc6
12.Qa3 Ke8 13.Kf3 Kf7 14.Ke2 (72.007.171) 2350
51/86 0:35 +3.82 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Qb4 Rc6
5.Ke1 Re6+ 6.Kd2 Rc6 7.Kc2 Kf7 8.Kc1 Ke8
9.Kd2 Kf7 10.Ke2 Re6+ 11.Kf1 Rc6
12.Qa3 Ke8 13.Ke2 Kf7 14.Kf2 (80.678.486) 2304
52/86 0:39 +3.82 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Qb4 Rc6
5.Ke1 Re6+ 6.Kf1 Rc6 7.Qa3 Kf7 8.Ke2 Re6+
9.Kf3 Rc6 10.Ke3 Ke8 11.Kd2 Kf7
12.Kc1 Ke8 13.Kd1 Kf7 14.Kd2 (89.668.553) 2261
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88/124 27:41 +3.71 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Kf1 Kf7
5.Qb4 Rc6 6.Qa3 Ke8 7.Kf2 Kf7 8.Kg1 Ke8
9.Qb4 Kf7 10.Kh2 Ke8 11.Qb1 Kf7
12.Qe1 Re6 13.Qd2 Bc6 14.Qb2 (3.933.697.350) 2367
89/116 32:25 +3.71 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Kf1 Kf7
5.Qb4 Rc6 6.Qa3 Ke8 7.Kf2 Kf7 8.Kg1 Ke8
9.Qb4 Kf7 10.Kh2 Ke8 11.Qb1 Kf7
12.Qe1 Re6 13.Qd2 Bc6 14.Qb2 (4.595.926.034) 2361
90/129 36:35 +3.71 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Kf1 Kf7
5.Qb4 Rc6 6.Qa3 Ke8 7.Kf2 Kf7 8.Kg1 Ke8
9.Qb4 Kf7 10.Kh2 Ke8 11.Qb1 Kf7
12.Qe1 Re6 13.Qd2 Bc6 14.Qb2 (5.172.651.894) 2356
91/98 43:46 +3.80++ 1.b5 (6.186.645.090) 2355
91/106 44:18 +3.71 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Kf1 Kf7
5.Qb4 Rc6 6.Qa3 Ke8 7.Kf2 Kf7 8.Kg2 Ke8
9.Kh3 Kf7 10.Qa1 Kf6 11.Kg2 Ke7
12.Qe1+ Re6 13.Qb1 Ke8 14.Qb4 (6.260.603.893) 2354
92/116 45:27 +3.71 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Kf1 Kf7
5.Qb4 Rc6 6.Qa3 Ke8 7.Kf2 Kf7 8.Kg2 Ke8
9.Kh3 Kf7 10.Qa1 Kf6 11.Kg2 Ke7
12.Qe1+ Re6 13.Qb1 Ke8 14.Qb4 (6.421.145.686) 2354
93/117 47:31 +3.71 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Kf1 Kf7
5.Qb4 Rc6 6.Qa3 Ke8 7.Kf2 Kf7 8.Kg2 Ke8
9.Kh3 Kf7 10.Qa1 Kf6 11.Kg2 Ke7
12.Qe1+ Re6 13.Qb1 Ke8 14.Qb4 (6.715.009.002) 2354
94/118 50:46 +3.71 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Kf1 Kf7
5.Qb4 Rc6 6.Qa3 Ke8 7.Kf2 Kf7 8.Kg2 Ke8
9.Kh3 Kf7 10.Qa1 Kf6 11.Kg2 Ke7
12.Qe1+ Re6 13.Qb1 Ke8 14.Qb4 (7.181.179.434) 2357
95/109 58:22 +3.71 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Kf1 Kf7
5.Qb4 Rc6 6.Qa3 Ke8 7.Kf2 Kf7 8.Kg2 Ke8
9.Kh3 Kf7 10.Qa1 Kf6 11.Kg2 Ke7
12.Qe1+ Re6 13.Qb1 Ke8 14.Qb4 (8.271.545.116) 2361
96/127 65:05 +3.71 1.b5 Bxb5 2.Qh1 Ke8 3.Qb1 Re6 4.Kf1 Kf7
5.Qb4 Rc6 6.Qa3 Ke8 7.Kf2 Kf7 8.Kg2 Ke8
9.Kh3 Kf7 10.Qa1 Kf6 11.Kg2 Ke7
12.Qe1+ Re6 13.Qb1 Ke8 14.Qb4 (9.248.081.923) 2367
You could also put the eval at 0 (or scale it down by a factor 8 or 16) for all positions with this Pawn structure. Or whenever the ply counter gets above 10.Eelco de Groot wrote: ↑Mon Apr 22, 2019 10:22 pm You could patch the eval of Stockfish a little in this particular position by scaling the stronger side down for having all pawns locked (after giving b5). The 'lantern' formation on the right is a well known 'indirectly' blocked formation.
Junior at least gives a not-winning eval:Eelco de Groot wrote: ↑Mon Apr 22, 2019 10:22 pm Kaissa gives 3.71. If you scale that down by 50% it would still be 1.85 high.
Code: Select all
8.Qh1 Bb5 9.Qg2 Ke6 10.Qf1 Kd6
+- (2.12) Depth: 9 00:00:00 4kN
8.Qh1 Bb5 9.Qg2 Ke6 10.Qf1 Kd6 11.Kf3 Re8 12.Qg2
+- (1.80) Depth: 12 00:00:00 57kN
8.Qd1 Bb5 9.Qh1 Ke7 10.Kf3 Kd6 11.Qd1 Re8
+- (1.81) Depth: 12 00:00:00 104kN
...
8.Qd1 Bb5 9.Qh1 Ke7 10.Kf3 Kd7 11.Qg1 Re7 12.Qf1 Kd6 13.Kf2 Re8 14.Qg2 Re7 15.Qh1 Re6 16.Qh2 Re4 17.Qh3
+/- (1.04) Depth: 24 00:00:01 14928kN
8.b5 Bxb5 9.Qh1 Ke8 10.Qa1 Re6 11.Qc1 Kf7 12.Qh1 Re4 13.Qa1 Re6 14.Qb1 Ke8 15.Qb2 Kf7
+/- (1.06) Depth: 24 00:00:02 28925kN
...
8.b5 Bxb5 9.Qh1 Ke8 10.Qa1 Re6 11.Qb2 Kf7 12.Qb1 Ke8 13.Qa1 Kf7 14.Qc1 Ba4
+/- (1.02) Depth: 31 00:00:28 651MN
8.Qh1 Bb5 9.Qd1 Ke7 10.Qf3 Kd6 11.Qg2 Re6 12.Qh2 Kd7 13.Qg1
+/- (1.03) Depth: 31 00:01:01 1475MN
...
8.Qh1 Bb5 9.Qd1 Ke7 10.Qf3 Kd6 11.Qg2 Re6 12.Qh2 Re4 13.Qh1 Ke6 14.Kf3 Ke7 15.Qg1 Re6
+/- (1.03) Depth: 34 00:06:50 10950MN