Fortress hard to detect, The Engines Crackers 04

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Vinvin
Posts: 5310
Joined: Thu Mar 09, 2006 9:40 am
Full name: Vincent Lejeune

Fortress hard to detect, The Engines Crackers 04

Post by Vinvin »

From https://glarean-magazin.ch/2021/09/20/c ... s-puzzles/

1r6/1n1R1b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w – – bm Rxb7;

[d]8/1r3b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w - - 0 2

It's hard to get a drawish evaluation after 1.Rxb7! Rxb7.
Results for Crystal 5, Sting-sf-28 and SugaR AI ICCF 2.50 on AMD 5850x 16 threads

Code: Select all

FEN: 8/1r3b2/8/1p1p3k/pPpPp1p1/2P1P1P1/P2K1P2/8 b - - 0 2

Crystal 5 KWK bmi2:
NNUE evaluation using nn-ad9b42354671.nnue enabled
 1/1	00:00	 583	583k	-5,51	2. ... Rb8 3.Ke2 Kg5
 2/2	00:00	 2k	1.525k	-5,51	2. ... Rb8 3.Ke2
 3/3	00:00	 3k	1.479k	-5,51	2. ... Rb8 3.Ke2 Kg5
 4/4	00:00	 5k	2.522k	-5,76	2. ... Rb8 3.Ke2 Kg5 4.Kf1 Rh8 5.Kg2
 5/7	00:00	 8k	4.165k	-6,02	2. ... Rb8 3.Ke1 Rh8 4.Kf1 Kg5 5.Kg2
 6/6	00:00	 13k	6.552k	-5,79	2. ... Rb8 3.Ke1 Rh8 4.Kf1 Kg5 5.Ke2 Rh1
 7/8	00:00	 57k	18.884k	-2,89	2. ... Rb6 3.Ke1 Rh6 4.Kf1 Kg6 5.Kg2 a3 6.Kg1
 8/9	00:00	 64k	21.416k	-2,89	2. ... Rb6 3.Ke1 Rh6 4.Kf1 Kg6 5.Kg2 a3 6.Kg1 Kh7
 9/90	00:00	 3.166k	20.429k	-2,56	2. ... Be6 3.Ke1 Rh7 4.Kf1 a3 5.Kg2 Kg6 6.Kg1 Ra7 7.Kf1
 10/16	00:00	 3.232k	20.330k	-2,47	2. ... Be6 3.Ke1 Rh7 4.Kf1 a3 5.Kg2 Kg6 6.Kg1 Ra7 7.Kg2 Kf5 8.Kf1 Ra4 9.Ke1 Bf7 10.Kf1
 11/56	00:00	 3.509k	20.399k	-2,46	2. ... Be6 3.Ke1 Rh7 4.Kf1 Kg6 5.Kg2 a3 6.Kg1 Kf6 7.Kg2 Rh5 8.Kg1 Bf7 9.Kg2 Ke6 10.Kg1 Kd6 11.Kg2 Rh8 12.Kg1 Kc7 13.Kg2 Be6 14.Kg1 Bd7 15.Kg2 Kc6 16.Kg1 Ra8 17.Kg2 Ra4 18.Kf1 Rxb4 19.cxb4 Be8
 12/92	00:00	 18.375k	22.409k	-4,72	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg1 Kf6 6.Kg2 Kg6 7.Kg1 Rh5 8.Kg2 Kf5 9.Kg1 a3 10.Kg2 Ke6 11.Kg1 Rh8 12.Kg2 Ke7 13.Kg1 Rh6 14.Kg2 Ra6 15.Kf1 Bh5 16.Kg1
 13/92	00:01	 35.653k	22.694k	-5,03	2. ... Be6 3.Ke2 Rc7 4.Kf1 Kg6 5.Kg1 Rh7 6.Kg2 Rh5 7.Kg1 Rh8 8.Kg2 Kf6 9.Kg1 Bf5 10.Kg2 Kf7 11.Kg1 Kg7 12.Kg2 Bd7 13.Kg1 Rh5 14.Kg2 a3 15.Kg1 Bf5 16.Kg2 Kf6 17.Kg1 Kf7 18.Kg2 Rh6 19.Kg1 Bc8 20.Kg2 Be6 21.Kg1 Bf5 22.Kg2 Ke7 23.Kg1 Rh8 24.Kg2 Kd6 25.Kg1 Ra8 26.Kg2 Ra4 27.Kf1 Bd7 28.Ke1
 14/90	00:03	 81.786k	23.110k	-5,63	2. ... Rd7 3.Ke2 Kg5 4.Kf1 Rd6 5.Kg1 Rh6 6.Kg2 Be6 7.Kg1 Bg8 8.Kg2 Kf6 9.Kg1 Bf7 10.Kg2 Ke6 11.Kg1 Rh8 12.Kg2 a3 13.Kg1 Bg6 14.Kg2 Rh7 15.Kg1 Kd6 16.Kg2 Bh5 17.Kf1 Rf7 18.Ke2
 15/48-	00:04	 93.059k	22.966k	-5,83	2. ... Rd7
 15/78-	00:04	 93.217k	22.965k	-5,88	2. ... Rd7
 15/78-	00:04	 94.152k	22.953k	-5,93	2. ... Rd7
 15/78-	00:04	 108.388k	22.968k	-6,61	2. ... Rb8
 15/78-	00:05	 119.784k	22.952k	-6,75	2. ... Bg8
 15/78-	00:05	 133.030k	22.889k	-6,93	2. ... Rb8
 15/78-	00:05	 133.067k	22.891k	-7,27	2. ... Rb8
 15/78+	00:07	 165.468k	22.695k	-5,41	2. ... Rb8 3.Ke1
 15/78-	00:08	 191.502k	22.490k	-6,50	2. ... Rb8
 15/78-	00:08	 191.675k	22.489k	-6,96	2. ... Rb8
 15/82	00:09	 211.697k	22.435k	-5,12	2. ... Be6 3.Ke2 Ra7 4.Kf1 Kg5 5.Kg2 Rh7 6.Kg1 Bc8 7.Kg2 Rh5 8.Kg1 Rh6 9.Kg2 Kf5 10.Kg1 Be6 11.Kg2 Bd7 12.Kg1 Be8 13.Kg2 Kg6 14.Kg1 Rh3 15.Kg2 Bd7 16.Kg1 a3 17.Kg2 Rh7 18.Kg1 Rf7 19.Kg2 Be6 20.Kf1
 16/74-	00:09	 212.245k	22.431k	-5,38	2. ... Be6
 16/74-	00:10	 224.673k	22.405k	-5,41	2. ... Be6
 16/74-	00:10	 229.541k	22.478k	-6,18	2. ... Be6
 16/74-	00:12	 293.391k	24.342k	-6,38	2. ... Rb8
 16/74-	00:13	 328.873k	25.136k	-6,69	2. ... Be6
 16/74-	00:13	 328.886k	25.137k	-7,02	2. ... Be6
 16/98	00:16	 448.771k	27.129k	-5,21	2. ... Be6 3.Ke2 Kg6 4.Kf1 Ra7 5.Kg2 Rh7 6.Kg1 Bg8 7.Kg2 Rh4 8.Kg1 Kf7 9.Kg2 Kf6 10.Kg1 Bh7 11.Kg2 Kg5 12.Kg1 Bf5 13.Kg2 a3 14.Kg1 Be6 15.Kg2 Rh8 16.Kg1 Kg6 17.Kg2 Ra8 18.Kg1 Ra4 19.Kf1 Bf7
 17/58-	00:18	 518.274k	27.914k	-6,32	2. ... Be6
 17/58-	00:20	 576.102k	28.457k	-6,38	2. ... Be6
 17/62-	00:20	 579.456k	28.482k	-7,06	2. ... Be6
 17/86-	00:39	 1.248.323k	31.393k	-7,28	2. ... Kg5
 17/86-	00:39	 1.248.737k	31.392k	-7,88	2. ... Kg5
 17/86+	01:25	 2.804.847k	32.693k	-5,74	2. ... Kg5 3.Ke1
 17/108	01:46	 3.479.542k	32.795k	-5,56	2. ... Kg5 3.Ke1 Kf6 4.Kf1 Be8 5.Kg2 Bg6 6.Kh2 Rh7+ 7.Kg2 Rh5 8.Kg1 Rh3 9.Kg2 Bf7 10.Kg1 Be6 11.Kg2 Kg6 12.Kg1 Rh8 13.Kg2 Kg5 14.Kg1 Bf5 15.Kg2 a3 16.Kg1 Kf6 17.Kg2 Kg6 18.Kg1 Ra8 19.Kg2 Ra4 20.Kf1 Ra6 21.Ke2
 18/54-	01:48	 3.553.586k	32.803k	-5,96	2. ... Kg5
 18/72-	01:55	 3.795.693k	32.915k	-6,01	2. ... Kg5
 18/92-	02:44	 5.467.909k	33.196k	-7,22	2. ... Kg5
 18/114-	03:02	 6.061.505k	33.190k	-7,49	2. ... Be6
 18/114+	03:27	 6.776.981k	32.681k	-5,78	2. ... Be6 3.Ke1
 18/120-	03:27	 6.796.315k	32.681k	-6,82	2. ... Be6
 18/120-	03:28	 6.811.692k	32.681k	-7,37	2. ... Be6
 18/182+	9:48:31	1.160.078.599k	32.853k	-5,36	2. ... Be6 3.Ke1

Code: Select all

FEN: 8/1r3b2/8/1p1p3k/pPpPp1p1/2P1P1P1/P2K1P2/8 b - - 0 2

Sting-sf-28:
 1	00:00	 15	15	-10,30	2. ... Be6
 2	00:00	 63	66	-2,60	2. ... Be6 3.a3
 3	00:00	 159	167	-2,65	2. ... Be6 3.a3 Kg5
 4	00:00	 311	326	-2,67	2. ... Be6 3.a3 Kg5 4.Ke2
 5	00:00	 665	698	-2,72	2. ... Be6 3.a3 Kg5 4.Ke2 Rh7
 6	00:00	 1k	2k	-2,74	2. ... Be6 3.a3 Kg5 4.Kd1 Rh7 5.Ke2
 7	00:00	 3k	3k	-2,76	2. ... Be6 3.a3 Kg5 4.Kd1 Rh7 5.Kd2 Kf5 6.Ke2
 8	00:00	 9k	10k	-2,74	2. ... Be6 3.a3 Kg5 4.Kd1 Rh7 5.Ke1 Rf7 6.Ke2 Rh7
 9-	00:00	 10k	10k	-2,83	2. ... Be6
 9-	00:00	 11k	12k	-2,91	2. ... Kg5
 9-	00:00	 11k	12k	-3,07	2. ... Kg5 3.a3 Be6 4.Kd1 Rh7 5.Ke1 Rh1+ 6.Kd2 Ra1
 9-	00:00	 12k	12k	-3,21	2. ... Kg5 3.a3 Be6 4.Kd1 Rh7 5.Ke1 Rh1+ 6.Kd2 Ra1 7.Ke2 Rxa3
 9	00:00	 16k	16k	-3,23	2. ... Kg5 3.a3 Be6 4.Kd1 Rh7 5.Kc1 Rf7 6.Kd2 Rxf2+ 7.Kd1 Rh2
 10-	00:00	 16k	17k	-3,37	2. ... Kg5
 10-	00:00	 16k	17k	-5,21	2. ... Kg5 3.a3 Be6 4.Kd1 Rh7 5.Kc1 Rf7 6.Kd2 Rxf2+ 7.Kd1 Ra2 8.Ke1
 10-	00:00	 17k	18k	-9,63	2. ... Kg5 3.a3 Be6 4.Kd1 Rh7 5.Kc1 Rf7 6.Kd2 Rxf2+ 7.Kd1 Ra2 8.Ke1
 10	00:00	 40k	41k	-5,25	2. ... Be8 3.a3 Kg5 4.Kd1 Rh7 5.Kd2 Rh1 6.Kc2 Ra1 7.Kb2 Rxa3 8.Kxa3 Kf5
 11-	00:00	 40k	42k	-5,37	2. ... Be8
 11-	00:00	 41k	42k	-8,55	2. ... Be8 3.a3 Kg5 4.Kd1 Rh7 5.Kd2 Rh2
 11-	00:00	 41k	42k	-8,55	2. ... Be8 3.a3 Kg5 4.Kd1 Rh7 5.Kd2 Rh2 6.Kd1 Rxf2 7.Ke1 Ra2 8.Kf1 Rxa3 9.Ke1 Rxc3
 11-	00:00	 41k	43k	-7,89	2. ... Be8 3.a3 Kg5 4.Kd1 Rh7 5.Kd2 Rh2 6.Kd1 Rxf2 7.Ke1 Ra2 8.Kf1 Rxa3 9.Ke1 Rxc3
 11+	00:00	 51k	52k	-5,13	2. ... Be8 3.Ke1 Rh7 4.Kf1 Kg5 5.Kg2 Rh1 6.Kxh1 Kh6 7.a3 Kg5 8.Kg2 Kh6 9.Kf1
 11	00:00	 76k	79k	-5,53	2. ... a3 3.Kd1 Ra7 4.Ke2 Ra4 5.Kd2 Rxb4 6.cxb4 Be6 7.Kc3 Kg5 8.Kd2 Kf5
 12-	00:00	 85k	88k	-6,14	2. ... Kg6
 12-	00:00	 85k	88k	-6,14	2. ... Kg6 3.a3 Be8 4.Ke1 Rh7 5.Kd2 Kg5 6.Kd1 Rh2 7.Ke1 Rh1+ 8.Kd2 Ra1 9.Ke2 Rxa3
 12-	00:00	 85k	88k	-6,68	2. ... Kg6 3.a3 Be8 4.Ke1 Rh7 5.Kd2 Kg5 6.Kd1 Rh2 7.Ke1 Rh1+ 8.Kd2 Ra1 9.Ke2 Rxa3
 12	00:00	 96k	99k	-5,53	2. ... a3
 13	00:00	 105k	108k	-5,53	2. ... a3 3.Kd1 Ra7 4.Ke2 Ra4 5.Kd2
 14-	00:00	 112k	115k	-5,61	2. ... a3
 14-	00:00	 112k	115k	-5,81	2. ... a3
 14-	00:00	 112k	115k	-5,81	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Kd2 Be6 6.Kd1 Rh7 7.Ke2 Rh1 8.Kd2 Ra1 9.Ke2 Rxa2+ 10.Kf1 Ra1+ 11.Ke2 Rh1
 14-	00:00	 116k	119k	-6,02	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Kd2 Be6 6.Kd1 Rh7 7.Ke2 Rh1 8.Kd2 Ra1 9.Ke2 Rxa2+ 10.Kf1 Ra1+ 11.Ke2 Rh1
 14	00:00	 132k	134k	-5,77	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be6 6.Kf1 Bd7 7.Ke1 Be8 8.Kf1 Ra4 9.Ke2 Rxb4 10.cxb4 c3 11.Kd1
 15-	00:01	 167k	165k	-6,16	2. ... Rb6
 15-	00:01	 167k	165k	-6,16	2. ... Rb6 3.a3 Kg5 4.Ke2 Rh6 5.Kd2 Be8 6.Ke2 Rh1 7.Kd2 Ra1 8.Ke2 Rxa3 9.Ke1 Rxc3 10.Kd1 Kf5 11.Ke1 Bd7
 15-	00:01	 167k	165k	-6,28	2. ... Rb6 3.a3 Kg5 4.Ke2 Rh6 5.Kd2 Be8 6.Ke2 Rh1 7.Kd2 Ra1 8.Ke2 Rxa3 9.Ke1 Rxc3 10.Kd1 Kf5 11.Ke1 Bd7
 15-	00:01	 168k	166k	-6,58	2. ... Rb6 3.a3 Kg5 4.Ke2 Rh6 5.Kd2 Be8 6.Ke2 Rh1 7.Kd2 Ra1 8.Ke2 Rxa3 9.Ke1 Rxc3 10.Kd1 Kf5 11.Ke1 Bd7 12.Ke2
 15-	00:01	 169k	167k	-8,40	2. ... Rb6 3.a3 Kg5 4.Ke2 Rh6 5.Kd2 Be8 6.Ke2 Rh1 7.Kd2 Ra1 8.Ke2 Rxa3 9.Ke1 Rxc3 10.Kd1 Kf5 11.Ke1 Bd7 12.Ke2
 15	00:01	 196k	193k	-5,77	2. ... a3
 16	00:01	 213k	209k	-5,77	2. ... a3 3.Kd1
 17-	00:01	 224k	219k	-6,06	2. ... a3
 17-	00:01	 225k	219k	-6,06	2. ... a3
 17-	00:01	 225k	220k	-6,06	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be6 6.Kf1 Kf5 7.Ke1 Rh7 8.Ke2 Rh1 9.Kd2 Ra1 10.f4 exf3 11.Kc2 Rxa2+ 12.Kd1 Kg5 13.Kc1 Ra1+
 17-	00:01	 227k	222k	-6,27	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be6 6.Kf1 Kf5 7.Ke1 Rh7 8.Ke2 Rh1 9.Kd2 Ra1 10.f4 exf3 11.Kc2 Rxa2+ 12.Kd1 Kg5 13.Kc1 Ra1+
 17	00:01	 266k	253k	-5,89	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be6 6.Kf1 Kh5 7.Kg2 Bf7 8.Kf1 Kg6 9.Kg2 Ra4 10.Kf1 Rxb4 11.cxb4 c3
 18-	00:01	 273k	259k	-6,02	2. ... a3
 18-	00:01	 281k	266k	-6,22	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be8 6.Kf1 Ra4
 18	00:01	 331k	291k	-6,02	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be8 6.Kf1 Ra4 7.Ke2 Kg6 8.Kf1 Ra7
 19	00:01	 419k	356k	-6,02	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be8 6.Kf1 Ra4 7.Ke2 Kg6 8.Kf1 Ra7 9.Kg1 Kf5 10.Kg2 Ra4 11.Kf1 Rxb4 12.cxb4 Bc6 13.Ke2 c3 14.Kd1
 20	00:01	 492k	407k	-6,02	2. ... a3 3.Kd1 Ra7 4.Ke2
 21	00:01	 604k	490k	-6,02	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1
 22-	00:01	 613k	495k	-6,14	2. ... a3
 22	00:01	 752k	592k	-6,06	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be8 6.Kf1 Ra4 7.Ke2 Kg6 8.Kf1 Kh5 9.Ke1 Ra7 10.Ke2 Kh6 11.Kf1 Kg6
 23-	00:01	 768k	603k	-6,14	2. ... a3
 23-	00:01	 769k	604k	-6,22	2. ... a3
 23	00:01	 985k	755k	-6,06	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be8 6.Kf1 Ra4 7.Ke2 Kg6 8.Kf1 Kf6 9.Ke2 Ra6 10.Kf1 Kf5 11.Kg1 Ra7 12.Kf1 Ra4
 24-	00:01	 998k	764k	-6,14	2. ... a3
 24-	00:01	 999k	764k	-6,22	2. ... a3
 24	00:01	 1.311k	955k	-6,06	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be8 6.Kf1 Ra4 7.Ke2 Kg6 8.Kf1 Kh5 9.Ke1 Ra7 10.Ke2 Kg6 11.Kf1 Kf5 12.Kg1 Ra4 13.Kf1 Kg6 14.Ke2 Kf6 15.Ke1 Rxb4 16.cxb4
 25-	00:01	 1.341k	973k	-6,14	2. ... a3
 25-	00:01	 1.343k	974k	-6,22	2. ... a3
 25	00:01	 1.658k	1.167k	-6,06	2. ... a3 3.Kd1 Ra7 4.Ke2 Kg5 5.Ke1 Be8 6.Kf1 Ra4 7.Ke2 Ra6 8.Kf1 Ra7 9.Kg1 Ra4 10.Kf1 Kf5 11.Ke1 Ra7 12.Kf1 Kf6 13.Kg1 Ra4 14.Kf1 Ra6 15.Kg1 Ra7 16.Kf1 Ra4
 26-	00:01	 1.775k	1.229k	-6,14	2. ... a3
 26	00:01	 2.678k	1.672k	-6,06	2. ... a3 3.Kd1 Ra7 4.Ke2 Be8 5.Kf1 Kg5 6.Kg1 Ra4 7.Kf1 Kf5 8.Ke2 Kf6 9.Kf1 Ra7 10.Kg2 Bf7 11.Kf1 Kg5 12.Ke1
 27-	00:01	 2.914k	1.765k	-6,14	2. ... a3
 27-	00:01	 2.919k	1.766k	-6,22	2. ... a3
 27	00:01	 3.787k	2.147k	-6,10	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8 5.Kf1 Rh7 6.Kg1 Ra7 7.Kg2 Bf7 8.Kf1 Ra4 9.Ke2 Kf5 10.Kf1 Kg6
 28-	00:01	 3.829k	2.157k	-6,18	2. ... a3
 28-	00:01	 3.844k	2.159k	-6,26	2. ... a3
 28-	00:01	 3.853k	2.162k	-6,38	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8 5.Kf1 Rh7 6.Kg1 Kf5 7.Kg2 Kg6 8.Kg1 Kg5 9.Kg2 Rh5 10.Kg1 Kf5 11.Kg2 Rh7 12.Kg1 Kg6 13.Kg2 Ra7 14.Kg1 Kf5 15.Kf1 Ra6 16.Kg1 Ra4 17.Kf1 Rxb4 18.cxb4
 28-	00:01	 3.864k	2.166k	-6,56	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8 5.Kf1 Rh7 6.Kg1 Kf5 7.Kg2 Kg6 8.Kg1 Kg5 9.Kg2 Rh5 10.Kg1 Kf5 11.Kg2 Rh7 12.Kg1 Kg6 13.Kg2 Ra7 14.Kg1 Kf5 15.Kf1 Ra6 16.Kg1 Ra4 17.Kf1 Rxb4
 28	00:01	 5.650k	2.874k	-6,38	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8 5.Kf1 Rh7 6.Kg1 Kf5 7.Kg2 Kg6 8.Kg1 Kg5 9.Kg2 Rh5 10.Kg1 Kf5 11.Kg2 Rh7 12.Kg1 Kg6 13.Kg2 Ra7 14.Kg1 Kf5 15.Kf1 Ra6 16.Kg1 Ra8 17.Kf1 Ra4 18.Ke2 Rxb4
 29	00:02	 6.645k	3.101k	-6,46	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8 5.Kf1 Rh7 6.Kg1 Kf5 7.Kg2 Rh8 8.Kg1 Kg6 9.Kg2 Kg7 10.Kg1 Rh3 11.Kg2 Rh7 12.Kg1 Kg6 13.Kg2 Kf5 14.Kg1 Ra7
 30	00:02	 7.953k	3.494k	-6,46	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8 5.Kf1 Rh7 6.Kg1 Kf5 7.Kg2 Rh8 8.Kg1 Kg6 9.Kg2 Kg7 10.Kg1 Rh3 11.Kg2 Rh7 12.Kg1 Kg6 13.Kg2 Kf5 14.Kg1 Ra7 15.Kg2 Rf7
 31	00:02	 9.279k	3.809k	-6,46	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8
 32+	00:02	 13.319k	4.652k	-6,38	2. ... a3 3.Kd1
 32+	00:03	 16.293k	5.166k	-6,30	2. ... a3 3.Kd1
 32+	00:03	 19.512k	5.675k	-6,18	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8 5.Kf1 Rh7 6.Kg1 Kf5 7.Kg2 Rh1 8.Kxh1 Kg5 9.Kg2 Bc6 10.Kf1 Kg6 11.Kg2 Kg5
 32+	00:04	 28.913k	6.757k	-5,72	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8 5.Kf1 Rh7 6.Kg1 Kf5 7.Kg2 Rh1 8.Kxh1 Kg5 9.Kg2 Bc6 10.Kf1 Kg6 11.Kg2 Kg5
 32	00:04	 30.057k	6.805k	-5,81	2. ... a3 3.Kd1 Kg5 4.Ke2 Be8 5.Kf1 Rh7 6.Kg1 Kf5 7.Kg2 Rh8 8.Kg1 Kf6 9.Kg2 Bc6 10.Kg1 Kg6 11.Kg2 Rh7 12.Kg1 Bd7 13.Kg2 Be6 14.Kg1 Kg5
 33-	00:04	 32.357k	7.019k	-5,93	2. ... Rb6
 33	00:04	 34.094k	7.110k	-5,85	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Kg5 7.Kg2 Ra4 8.Kf1 Kg6 9.Ke2 Kf6 10.Ke1 Be8 11.Kf1 Bc6 12.Ke2 Ra7 13.Kf1 Kf5 14.Kg1 Kg6 15.Kg2 Kg5 16.Kg1 Be8 17.Kg2 Ra4 18.Kf1 Rxb4 19.cxb4 c3 20.Ke1 Bd7 21.Kd1
 34-	00:04	 34.404k	7.075k	-5,97	2. ... Rb6
 34-	00:04	 34.451k	7.068k	-6,10	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Kg5 7.Kg2 Ra4 8.Kf1 Kg6 9.Ke2 Ra8 10.Kf1 Kf5 11.Kg2 Rh8 12.Kg1 Kg5 13.Kg2 Be6 14.Kg1 Ra8 15.Kf1 Kg6 16.Kg1 Ra4 17.Kf1 Kf6 18.Ke1 Ra7 19.Kf1 Bf7
 34	00:05	 43.120k	7.740k	-6,06	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Kg5 7.Kg2 Ra4 8.Kf1 Kg6 9.Ke2 Ra8 10.Kf1 Kf5 11.Kg2 Rh8 12.Kg1 Kg5 13.Kg2 Be6 14.Kg1 Kf5 15.Kg2 Ra8 16.Kg1 Ra4 17.Kf1 Rxb4 18.cxb4 c3 19.Ke1 Bf7 20.Kd1
 35+	00:06	 50.243k	8.191k	-5,93	2. ... Rb6 3.Ke2
 35+	00:06	 57.526k	8.535k	-5,81	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Kg5 7.Kg2 Ra4 8.Kf1 Kg6 9.Ke2 Rxb4 10.cxb4 c3 11.Kd1 Kg5 12.Kc2 Kf5 13.Kxc3 Be8 14.Kd2 Kf6 15.Kc2 Kg5 16.Kc3 Kf6 17.Kd2 Kg6 18.Kc3 Kg5 19.Kd2 Kg6
 35	00:06	 60.740k	8.690k	-5,81	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Kg5 7.Kg2 Ra4 8.Kf1 Kg6 9.Ke2 Kf6
 36	00:07	 68.048k	8.858k	-5,81	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Kg5 7.Kg2 Ra4 8.Kf1 Kg6 9.Ke2 Kf6 10.Ke1 Ra6 11.Kf1 Ra8 12.Kg2 Rh8 13.Kg1 Kg5 14.Kg2 Rh6 15.Kg1 Rh5 16.Kg2 Rh7
 37-	00:07	 68.276k	8.857k	-5,93	2. ... Rb6
 37	00:08	 76.421k	9.095k	-5,85	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Kg5 7.Kg2 Ra4 8.Kf1 Kg6 9.Ke1 Kf6 10.Kf1 Ra8 11.Kg1 Kg6 12.Kf1 Kf5 13.Kg2 Ra4 14.Kf1 Ke6 15.Ke1 Kd6 16.Ke2 Be8 17.Ke1 Ke6 18.Kf1 Rxb4 19.cxb4 c3 20.Ke1 Bc6 21.Kd1
 38+	00:09	 92.913k	9.644k	-5,77	2. ... Rb6 3.Ke2
 38-	00:09	 93.703k	9.658k	-5,93	2. ... Rb6
 38-	00:09	 93.843k	9.653k	-6,06	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Be8 8.Kf1 Kg5 9.Ke1 Ra7 10.Kf1 Bd7 11.Kg1 Kf6 12.Kf1 Kf5 13.Kg1 Ra4 14.Kf1 Ra6 15.Kg2 Bc8 16.Kf1 Ra7 17.Kg1 Ra4 18.Kf1 Ra6
 38+	00:10	 109.925k	10.002k	-5,69	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Be8 8.Kf1 Kg5 9.Ke1 Ra7 10.Kf1 Bd7 11.Kg1 Kf6 12.Kf1 Kf5 13.Kg1 Ra4 14.Kf1 Ra6 15.Kg2 Bc8 16.Kf1 Ra7 17.Kg1 Ra4 18.Kf1 Ra6 19.Kg2 Ra4 20.Kf1
 38	00:12	 129.921k	10.425k	-5,61	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Be8 8.Kf1 Kg5 9.Ke1 Ra7 10.Kf1 Bd7 11.Kg1 Kf6 12.Kf1 Kf5 13.Kg1 Ra4 14.Kf1 Ra6 15.Kg2 Bc8 16.Kf1 Ra7 17.Kg1 Ra4 18.Kf1 Ra6 19.Kg2 Kf6 20.Kf1 Kg5 21.Kg1 Ra4 22.Kf1 Rxb4 23.cxb4 Kf6 24.Ke1 Bf5 25.Kd2 Bg6 26.Kc2
 39-	00:12	 130.129k	10.399k	-5,73	2. ... Rb6
 39-	00:12	 130.276k	10.398k	-5,85	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Be8 8.Kf1 Kg5 9.Ke1 Ra7 10.Kf1 Kf5 11.Kg2 Ra4 12.Kf1 Bf7 13.Ke1 Ke6 14.Kf1 Be8 15.Ke1 Ra7 16.Kf1 Bd7 17.Ke1 Ra6 18.Kf1 Kf5 19.Kg2 Be8
 39-	00:12	 130.366k	10.387k	-6,04	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Be8 8.Kf1 Kg5 9.Ke1 Ra7 10.Kf1 Kf5 11.Kg2 Ra4 12.Kf1 Bf7 13.Ke1 Ke6 14.Kf1 Be8 15.Ke1 Ra7 16.Kf1 Bd7 17.Ke1 Ra6 18.Kf1 Kf5 19.Kg2 Ra4 20.Kf1 Rxb4
 39	00:13	 143.991k	10.587k	-5,77	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Be8 8.Kf1 Kg5 9.Ke1 Ra7 10.Kf1 Kf5 11.Kg2 Ra4 12.Kf1 Bf7 13.Ke1 Ke6 14.Kf1 Be8 15.Ke1 Ra7 16.Kf1 Kf6 17.Kg2 Kf5 18.Kf1 Ra4 19.Ke2 Bc6
 40+	00:15	 167.255k	10.931k	-5,65	2. ... Rb6 3.Ke2
 40-	00:15	 167.766k	10.935k	-5,89	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Kf1 Be8 9.Ke1 Kf5 10.Ke2 Bf7 11.Ke1 Ra6 12.Kf1 Bg8 13.Kg1 Ra4 14.Kf1 Be6 15.Ke2 Ra7
 40	00:16	 176.348k	11.020k	-5,81	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Kf1 Be8 9.Ke1 Kf5 10.Ke2 Bf7 11.Ke1 Ra6 12.Kf1 Bg8 13.Kg1 Ra4 14.Kf1 Bh7 15.Ke2 Kg5 16.Ke1 Bg6 17.Ke2 Ra8 18.Kf1 Kf6 19.Kg2 Ra6 20.Kg1 Ra4 21.Kf1 Rxb4 22.cxb4 c3 23.Ke2 Kg5 24.Kd1
 41-	00:16	 177.051k	10.999k	-5,93	2. ... Rb6
 41+	00:17	 196.267k	11.213k	-5,69	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Ke1 Kf5 9.Kf1 Be8 10.Ke2 Ra6 11.Kf1 Bg6 12.Kg2 Kg5 13.Kf1 Ra7 14.Kg2 Kf6 15.Kg1 Ra4 16.Kf1 Kf5 17.Ke1 Kf6 18.Kf1
 41+	00:20	 233.806k	11.668k	-5,51	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Ke1 Kf5 9.Kf1 Be8 10.Ke2 Ra6 11.Kf1 Bg6 12.Kg2 Kg5 13.Kf1 Ra7 14.Kg2 Kf6 15.Kg1 Ra4 16.Kf1 Kf5 17.Ke1 Kf6 18.Kf1
 41	00:20	 245.084k	11.710k	-5,57	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Ke1 Kf5 9.Kf1 Be8 10.Ke2 Ra6 11.Kf1 Bg6 12.Kg2 Kg5 13.Kf1 Ra7 14.Kg2 Kf6 15.Kg1 Ra4 16.Kf1 Kf5 17.Ke1 Ra7 18.Kf1 Ke6 19.Kg1 Ra4 20.Kf1 Kd6 21.Ke1 Rxb4 22.cxb4 Bf5 23.Kd2 Bd7
 42-	00:21	 245.833k	11.697k	-5,69	2. ... Rb6
 42-	00:21	 245.987k	11.686k	-5,81	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Ke1 Kf5 9.Kf1 Be8 10.Kg1 Rxb4 11.Kg2 Ra4 12.Kg1 b4 13.cxb4 Bb5 14.f4 exf3 15.e4+ dxe4 16.Kf2 Rxb4 17.Ke3 f2 18.Kxf2 c3 19.Ke3 c2 20.Kd2 Rxd4+ 21.Kxc2 Kg5
 42	00:22	 270.967k	11.849k	-5,57	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Ke1 Kf5 9.Kf1 Be8 10.Ke2 Ra6 11.Kf1 Kg5 12.Kg1 Ra4 13.Kf1 Kg6 14.Ke2 Ra7 15.Kf1 Ra6 16.Kg1 Ra4 17.Kf1 Bc6 18.Ke2 Kf6 19.Ke1 Ra8 20.Kf1 Bd7 21.Kg2 Ra4 22.Kf1 Rxb4 23.cxb4 Bf5 24.Ke2 Ke6 25.Ke1 Ke7 26.Kd2 Kd6
 43-	00:23	 272.018k	11.799k	-5,69	2. ... Rb6
 43-	00:23	 272.377k	11.782k	-5,81	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Ke1 Kf5 9.Kf1 Ke6 10.Ke2 Ra8 11.Kf1 Kf5 12.Kg1 Be8 13.Kg2 Bg6 14.Kf1 Kg5 15.Kg1 Rh8 16.Kg2 Be8 17.Kg1 Bf7 18.Kg2 Rh6
 43-	00:23	 273.741k	11.774k	-6,00	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Ke1 Ra8 9.Kf1 Kg5 10.Kg2 Rh8 11.Kg1 Rh7 12.Kg2 Kf6 13.Kg1 Rh8 14.Kg2 Ke6 15.Kg1 Kf5 16.Kg2 Rh6 17.Kg1 Bg8 18.Kg2 Ra6
 43	00:26	 330.975k	12.261k	-5,61	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Ke1 Ra8 9.Kf1 Kg5 10.Kg2 Rh8 11.Kg1 Rh7 12.Kg2 Kf6 13.Kg1 Rh8 14.Kg2 Ke6 15.Kg1 Kf5 16.Kg2 Rh6 17.Kg1 Bg8 18.Kg2 Ra6 19.Kg1 Ra4 20.Kf1 Bf7 21.Ke2 Kg5 22.Ke1 Kf5
 44	00:34	 446.330k	13.000k	-5,61	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2 Kg6 8.Ke1 Ra8 9.Kf1 Kg5 10.Kg2 Rh8 11.Kg1 Rh7 12.Kg2 Kf6 13.Kg1 Rh8 14.Kg2 Ke6 15.Kg1 Kf5 16.Kg2 Rh6 17.Kg1 Ra6 18.Kf1 Ra4 19.Ke2 Kg5 20.Ke1 Kf5
 45	00:46	 651.048k	14.000k	-5,61	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke2
 46+	01:11	 1.083.775k	15.155k	-5,53	2. ... Rb6 3.Ke2
 46-	01:11	 1.084.624k	15.146k	-5,69	2. ... Rb6
 46+	01:25	 1.325.905k	15.496k	-5,45	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke1 Kh6 8.Ke2 Kg6 9.Kf1 Rxb4 10.cxb4 c3 11.Ke1 Be6 12.Kd1 Kg5 13.Kc2 Bc8 14.Kxc3 Kg6 15.Kd2 Bb7 16.Kc2 Ba6 17.Kc3 Kf5 18.Kc2 Kf6 19.Kc3 Kf5
 46+	01:40	 1.579.162k	15.724k	-5,27	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke1 Kh6 8.Ke2 Kg6 9.Kf1 Rxb4 10.cxb4 c3 11.Ke1 Be6 12.Kd1 Kg5 13.Kc2 Bc8 14.Kxc3 Kg6 15.Kd2 Bb7 16.Kc2 Ba6 17.Kc3 Kf5 18.Kc2 Kf6 19.Kc3 Kf5
 46-	01:40	 1.583.095k	15.701k	-5,81	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke1 Kh6 8.Ke2 Kg6 9.Kf1 Kf6 10.Ke2 Be8 11.Kf1 Kf5 12.Ke1 Ra6 13.Kf1 Kf6 14.Ke1 Ra7 15.Kf1 Kf5 16.Kg1 Ra8 17.Kf1 Kf6 18.Ke1 Bd7 19.Kf1 Ke6 20.Kg1 Ra4 21.Kf1 Kf7
 46	01:52	 1.766.453k	15.740k	-5,53	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke1 Kh6 8.Ke2 Kg6 9.Kf1 Kf6 10.Ke2 Be8 11.Kf1 Kf5 12.Ke1 Ra6 13.Kf1 Kf6 14.Ke1 Ra7 15.Kf1 Kf5 16.Kg1 Ra8 17.Kf1 Kf6 18.Ke1 Bd7 19.Kf1 Ke6 20.Kg1 Ra4 21.Kf1 Kf7 22.Ke1 Be6 23.Kf1 Rxb4 24.cxb4 Kg6 25.Ke2 Kg5 26.Kd1 Kf6
 47-	01:52	 1.768.007k	15.721k	-5,61	2. ... Rb6
 47	02:19	 2.186.618k	15.648k	-5,57	2. ... Rb6 3.Ke2 Rh6 4.Kf1 a3 5.Kg2 Ra6 6.Kf1 Ra4 7.Ke1 Kh6 8.Ke2 Kg6 9.Kf1 Kf6 10.Ke1 Ke6 11.Ke2 Ra8 12.Kf1 Be8 13.Kg2 Ra4 14.Kf1 Kf6 15.Ke1 Ra8 16.Kf1 Bd7 17.Kg1 Ra6 18.Kf1 Ra4 19.Ke1 Ra8 20.Kf1 Bc6 21.Kg2 Kg6 22.Kg1 Kf5 23.Kg2 Be8 24.Kf1
 48-	02:19	 2.187.929k	15.634k	-5,65	2. ... Rb6
 48-	02:20	 2.188.857k	15.627k	-5,73	2. ... Rb6
 48-	02:21	 2.203.993k	15.620k	-5,85	2. ... Rb6 3.a3 Kg5 4.Kc1 Rb7 5.Kd1 Be8 6.Kc2 Rf7 7.Kd2 Kg6 8.Kc1 Kf5 9.Kd2 Kf6 10.Kc1 Kg6 11.Kb2 Rh7 12.Ka1 Kg5 13.Kb2 Bf7 14.Ka1 Bg8 15.Ka2 Rh6 16.Kb2 Ra6 17.Kc2 Bf7 18.Kb1 Be8 19.Kb2 Rh6 20.Kc2 Kf5 21.Kb2 Rh7 22.Ka2 Rb7 23.Kb2 Kf6 24.Ka1 Rh7
 48-	02:38	 2.511.251k	15.812k	-6,04	2. ... Rb6 3.a3 Kg5 4.Kc1 Rb7 5.Kd1 Be8 6.Kc2 Rf7 7.Kd2 Kg6 8.Kc1 Kf5 9.Kd2 Kf6 10.Kc1 Kg6 11.Kb2 Rh7 12.Ka1 Kg5 13.Kb2 Bf7 14.Ka1 Bg8 15.Ka2 Rh6 16.Kb2 Ra6 17.Kc2 Bf7 18.Kb1 Be8 19.Kb2 Rh6 20.Kc2 Kf5 21.Kb2 Rh7 22.Ka2 Rb7 23.Kb2 Ke6
 48	05:08	 4.755.471k	15.407k	-5,85	2. ... Rb6 3.Ke2 Rh6 4.Kf1
 49+	06:15	 5.918.066k	15.751k	-5,73	2. ... Rb6 3.Ke2
 49	07:38	 7.170.088k	15.649k	-5,69	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Bg6 7.Kg2 Rh8 8.Kg1 Bf7 9.Kg2 Bg8 10.Kg1 Bh7 11.Kf1 Ra8 12.Ke1 Ra4 13.Kf1 Bf5 14.Ke1 Ra6 15.Kf1 Ra8 16.Kg2 Ra4 17.Kf1 Bg6 18.Ke2 Ra8 19.Kf1 Be8 20.Kg2 Ra4 21.Kf1 Bh5 22.Ke2 Bg6 23.Kf1 Ra7 24.Kg1 Rh7
 50	08:57	 8.622.171k	16.045k	-5,69	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Bg6 7.Kg2 Rh8 8.Kg1 Bf7 9.Kg2 Bg8 10.Kg1 Bh7 11.Kf1 Ra8 12.Ke1 Ra4 13.Kf1 Bf5 14.Ke1 Ra6 15.Kf1 Ra8 16.Kg2 Ra4 17.Kf1 Bg6 18.Ke2 Ra8 19.Kf1 Be8 20.Kg2 Ra4 21.Kf1 Bh5 22.Ke2 Bg6 23.Kf1 Ra7 24.Kg1 Rh7 25.Kg2 Rh5
 51-	08:57	 8.626.499k	16.037k	-5,77	2. ... Rb6
 51-	08:58	 8.627.348k	16.035k	-5,85	2. ... Rb6
 51-	09:18	 8.915.231k	15.949k	-5,97	2. ... Rb6 3.Ke2 Rh6 4.a3 Kg5 5.Ke1 Rh2 6.Kd1 Rh5 7.Kc1 Rh6 8.Kd1 Rh2 9.Ke2 Rh1 10.Kd2 Ra1 11.Kc2 Rxa3 12.Kb2 Rxc3 13.Kxc3 Kf5 14.Kc2 Bg6 15.Kb1 Kg5 16.f4+ exf3+ 17.Ka2 c3 18.e4 dxe4 19.Ka3 e3 20.Ka2 f2 21.Ka3 f1Q 22.Ka2 Qf2+ 23.Ka3 Qxg3 24.Ka2 Qf2+ 25.Ka3 c2 26.Ka2 c1Q+
 51+	11:54	 11.324.854k	15.847k	-5,61	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Rh2 7.Kxh2 Be6 8.Kg1 Bf5 9.Kg2 Bd7 10.Kf1 Kf6 11.Kg2 Kf7 12.Kf1 Kg7 13.Kg2 Be8 14.Kf1 Bd7
 51+	15:43	 14.867.995k	15.759k	-4,93	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Rh2 7.Kxh2 Be6 8.Kg1 Bf5 9.Kg2 Bd7 10.Kf1 Kf6 11.Kg2 Kf7 12.Kf1 Kg7 13.Kg2 Be8 14.Kf1 Bd7
 51	20:24	 19.474.940k	15.905k	-5,25	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Ra6 7.Kg2 Ra4 8.Kf1 Bh5 9.Ke2 Ra6 10.Kf1 Rh6 11.Kg1 Be8 12.Kg2 Bg6
 52-	20:24	 19.479.276k	15.903k	-5,37	2. ... Rb6
 52-	20:26	 19.496.314k	15.900k	-5,49	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Bg6 7.Kg2 Be8 8.Kg1 Rh8 9.Kg2 Bd7 10.Kg1 Rh6 11.Kg2 Kf5 12.Kg1 Be8 13.Kg2 Bg6 14.Kg1 Rh8 15.Kg2 Kg5 16.Kg1 Kh5 17.Kh1 Rf8 18.Kg1 Ra8 19.Kg2 Ra4 20.Kf1 Rxb4 21.cxb4 Kg5 22.Ke1 Kf6 23.Kd2 Ke6 24.Kc2 Be8 25.Kc3 Ke7 26.Kc2 Bf7 27.Kc3 Kd6 28.Kd2
 52	23:19	 22.219.870k	15.875k	-5,49	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Bg6 7.Kg2 Be8 8.Kg1 Rh8 9.Kg2 Bd7 10.Kg1 Rh6 11.Kg2 Kf5 12.Kg1 Be8 13.Kg2 Bg6 14.Kg1 Rh8 15.Kg2 Kg5 16.Kg1 Kh5 17.Kh1 Rf8 18.Kg1 Ra8 19.Kg2 Ra4 20.Kf1 Ra7 21.Kg2 Bh7 22.Kg1 Ra4 23.Kf1 Bg6 24.Ke2 Be8 25.Ke1 Kg6 26.Kf1 Rxb4 27.cxb4 Kf7 28.Ke1 Ke7 29.Kd1 Bf7
 53-	23:19	 22.221.906k	15.874k	-5,61	2. ... Rb6
 53-	23:24	 22.294.504k	15.877k	-5,73	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Kf5 7.Kg2 Be8 8.Kg1 Rh7 9.Kg2 Rh8 10.Kg1 Kf6 11.Kg2 Rh6 12.Kg1 Rh7 13.Kg2 Rh5 14.Kg1 Kf5 15.Kg2 Ke6 16.Kg1 Kf6 17.Kg2 Rh7 18.Kg1 Kg5 19.Kg2 Kf5 20.Kg1 Bf7 21.Kg2 Rh6 22.Kg1 Ra6 23.Kg2 Be6 24.Kf1 Ra7 25.Kg2 Ra4 26.Kf1 Rxb4
 53	28:15	 27.745.191k	16.361k	-5,57	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Kf5 7.Kg2 Be8 8.Kg1 Rh7 9.Kg2 Rh8 10.Kg1 Kf6 11.Kg2 Rh6 12.Kg1 Rh7 13.Kg2 Rh5 14.Kg1 Kf5 15.Kg2 Ke6 16.Kg1 Kf6 17.Kg2 Rh7 18.Kg1 Kg5 19.Kg2 Kf5 20.Kg1 Bf7 21.Kg2 Rh6 22.Kg1 Ra6 23.Kg2 Be6 24.Kf1 Ra8 25.Kg1 Rh8 26.Kg2 Kg5 27.Kg1 Bf5 28.Kg2 Bd7
 54-	28:41	 28.218.951k	16.396k	-5,69	2. ... Rb6
 54-	28:41	 28.220.759k	16.395k	-5,81	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Kf5 7.Kg2 Ra6 8.Kg1 Rc6 9.Kf1 Rg6 10.Kg2 Rh6 11.Kg1 Ke6 12.Kg2 Be8 13.Kg1 Kd7 14.Kg2 Kd6 15.Kg1 Ke7 16.Kg2 Bc6 17.Kg1 Ke6 18.Kg2 Rh8 19.Kg1 Bd7 20.Kg2 Ke7 21.Kg1 Bf5 22.Kg2 Ke6 23.Kg1 Bg6 24.Kg2 Ra8 25.Kf1 Kf5 26.Kg1 Ra4 27.Kf1 Rxb4
 54	33:42	 33.359.135k	16.495k	-5,61	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Kf5 7.Kg2 Ra6 8.Kg1 Rc6 9.Kf1 Rg6 10.Kg2 Rh6 11.Kg1 Ke6 12.Kg2 Be8 13.Kg1 Kd7 14.Kg2 Kd6 15.Kg1 Ke7 16.Kg2 Bc6 17.Kg1 Ke6 18.Kg2 Rh8 19.Kg1 Bd7 20.Kg2 Ke7 21.Kg1 Bf5 22.Kg2 Ke6 23.Kg1 Bg6 24.Kg2 Ra8 25.Kg1 Ke7 26.Kf1 Kd7
 55-	33:42	 33.363.151k	16.494k	-5,69	2. ... Rb6
 55	41:03	 40.995.914k	16.639k	-5,57	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg2 a3 6.Kg1 Kf5 7.Kg2 Ra6 8.Kg1 Rc6 9.Kf1 Rg6 10.Kg1 Kg5 11.Kh2 Kf6 12.Kg2 Kg7 13.Kg1 Rh6 14.Kg2 Rh7 15.Kg1 Kg6 16.Kg2 Kf6 17.Kg1 Kf5 18.Kg2 Be6 19.Kg1 Rh5 20.Kg2 Bd7 21.Kg1 Rh6 22.Kg2 Be8 23.Kg1 Bg6 24.Kg2 Rh7 25.Kg1 Be8 26.Kg2 Rh8 27.Kg1
 56-	41:37	 41.666.605k	16.682k	-5,65	2. ... Rb6
 56-	47:13	 47.664.917k	16.824k	-5,73	2. ... Kg6
 56-	47:13	 47.667.243k	16.823k	-5,85	2. ... Kg6 3.Ke1 a3 4.Kf1 Kf6 5.Kg2 Bg8 6.Kh2 Rh7+ 7.Kg1 Kg7 8.Kg2 Be6 9.Kg1 Kf6 10.Kg2 Kf7 11.Kg1 Rh6 12.Kg2 Bf5 13.Kg1 Kf6 14.Kg2 Ke7 15.Kg1 Rh7 16.Kg2 Bd7 17.Kg1 Rh6 18.Kg2 Kf6 19.Kg1 Kg6 20.Kg2 Be8 21.Kg1 Kf7 22.Kg2 Ra6 23.Kf1 Ke7 24.Kg1 Rh6 25.Kg2 Rh8 26.Kg1 Ke6 27.Kg2 Bf7
 56	54:33	 57.023.073k	17.417k	-5,65	2. ... Kg6 3.Ke1 a3 4.Kf1 Kf6 5.Kg2 Bg8 6.Kh2 Rh7+ 7.Kg1 Kg7 8.Kg2 Be6 9.Kg1 Kf6 10.Kg2 Kf7 11.Kg1 Rh6 12.Kg2 Bf5 13.Kg1 Kf6 14.Kg2 Ke7 15.Kg1 Rh7 16.Kg2 Bd7 17.Kg1 Rh6 18.Kg2 Kf6 19.Kg1 Kg6 20.Kg2 Be8 21.Kg1 Kf7 22.Kg2 Ra6 23.Kf1 Ke7 24.Kg1 Ra4 25.Kf1 Bd7 26.Ke2 Bf5 27.Kf1 Rxb4 28.cxb4 Kd6 29.Ke2 Be6
 57	1:07:36	 74.193.273k	18.291k	-5,57	2. ... Kg6 3.Ke1 a3 4.Kf1 Kf6 5.Kg2 Bg8 6.Kh2 Rh7+ 7.Kg1 Kg7 8.Kg2 Be6 9.Kg1 Kf6 10.Kg2 Kf7 11.Kg1 Rh6 12.Kg2 Bf5 13.Kg1 Kf6 14.Kg2 Ke7 15.Kg1 Ra6 16.Kf1 Ra8 17.Kg2 Ra4 18.Kf1 Ra6 19.Kg1 Rh6 20.Kg2 Kf6 21.Kg1 Kg5 22.Kg2 Be6 23.Kg1 Kf6 24.Kg2 Bf7 25.Kg1 Kf5
 58	1:24:23	 96.745.781k	19.105k	-5,57	2. ... Kg6 3.Ke1 a3 4.Kf1 Kf6 5.Kg2 Bg8 6.Kh2 Rh7+ 7.Kg1 Kg7 8.Kg2 Be6 9.Kg1 Kf6 10.Kg2 Bd7 11.Kg1 Kf5 12.Kg2 Rh5 13.Kg1 Rh6 14.Kg2 Be6 15.Kg1 Bf7 16.Kg2
 59-	1:24:24	 96.757.150k	19.104k	-5,65	2. ... Kg6
 59	1:42:26	120.283.458k	19.570k	-5,57	2. ... Kg6 3.Ke1 a3 4.Kf1 Kf6 5.Kg2 Bg8 6.Kh2 Rh7+ 7.Kg1 Kg7 8.Kg2 Be6 9.Kg1 Kf6 10.Kg2 Bd7 11.Kg1 Kf5 12.Kg2 Rh5 13.Kg1 Rh6 14.Kg2 Ra6 15.Kf1 Kf6 16.Ke2 Ra4 17.Ke1 Ra7 18.Kf1 Bf5 19.Kg1 Ra4 20.Kf1 Bg6 21.Ke1 Bh5 22.Kf1 Be8 23.Ke1 Kf5 24.Ke2 Bg6 25.Ke1 Ra8 26.Kf1 Bh5 27.Ke1 Bf7 28.Kf1 Ra6 29.Kg1
 60-	1:45:57	125.053.842k	19.671k	-5,65	2. ... Kg6
 60	2:02:57	147.489.936k	19.991k	-5,57	2. ... Kg6 3.Ke1 a3 4.Kf1 Be8 5.Kg2 Rh7 6.Kg1 Kf6 7.Kg2 Ke6 8.Kg1 Kf5 9.Kg2 Rh6 10.Kg1 Bf7 11.Kg2 Rh7 12.Kg1 Bg6 13.Kg2 Ra7 14.Kf1 Ra4 15.Ke1 Bf7 16.Kf1 Be6 17.Ke2 Ra7 18.Kf1 Bc8 19.Kg1 Ra4 20.Kf1 Ra6 21.Kg1 Rh6 22.Kg2 Rh8 23.Kg1 Bd7 24.Kg2 Rh4 25.Kg1 Rh7 26.Kg2 Rh6 27.Kg1 Ra6 28.Kf1 Be6 29.Kg2 Bf7
 61+	2:36:38	192.073.723k	20.437k	-5,49	2. ... Kg6 3.Ke1
 61-	2:38:29	194.368.441k	20.440k	-5,65	2. ... Kg6
 61	2:50:43	210.008.442k	20.502k	-5,61	2. ... Kg6 3.Ke1 a3 4.Ke2 Ra7 5.Kf1 Ra4 6.Ke2 Ra8 7.Kf1 Rh8 8.Kg1 Rh5 9.Kg2 Rh6 10.Kg1 Be8 11.Kg2 Kf5 12.Kg1 Ke6 13.Kg2 Rf6 14.Kg1 Kd7 15.Kf1 Ra6 16.Kg1 Ke7 17.Kf1 Bg6 18.Kg2 Rf6 19.Kg1 Be8 20.Kg2 Bd7 21.Kf1 Kf7 22.Kg1 Rh6 23.Kg2 Ra6 24.Kf1 Ra8 25.Kg1 Rh8 26.Kg2 Kg6 27.Kg1 Ra8 28.Kf1 Ra6 29.Kg1 Be8
 62-	2:54:47	215.085.691k	20.509k	-5,69	2. ... Kg6
 62-	2:54:47	215.089.864k	20.509k	-5,77	2. ... Kg6
 62-	2:54:47	215.092.129k	20.509k	-5,89	2. ... Kg6 3.Ke1 a3 4.Ke2 Kf6 5.Kf1 Rb8 6.Kg2 Be6 7.Kg1 Rh8 8.Kg2 Rh7 9.Kg1 Rh6 10.Kg2 Bf5 11.Kg1 Rh7 12.Kg2 Kg6 13.Kg1 Bd7 14.Kg2 Rh6 15.Kg1 Be6 16.Kg2 Bg8 17.Kg1 Rh7 18.Kg2 Kf5 19.Kg1 Bf7 20.Kg2 Bg6 21.Kg1 Be8 22.Kg2 Rh6 23.Kg1 Rb6 24.Kf1 Rf6 25.Kg1 Rh6 26.Kg2 Rh7 27.Kg1 Ra7 28.Kg2 Kg5 29.Kf1 Rf7 30.Kg2 Rh7 31.Kg1 Rh8 32.Kg2 Rh6
 62	3:39:46	275.066.879k	20.859k	-5,89	2. ... Kg6 3.Ke1 a3 4.Ke2 Kf6 5.Kf1 Rb8 6.Kg2 Be6 7.Kg1 Rh8 8.Kg2 Rh7 9.Kg1 Rh6 10.Kg2 Bf5 11.Kg1 Rh7 12.Kg2 Kg6 13.Kg1 Bd7 14.Kg2 Rh6 15.Kg1 Be6 16.Kg2 Bg8 17.Kg1 Rh7 18.Kg2 Kf5 19.Kg1 Bf7 20.Kg2 Bg6 21.Kg1 Be8 22.Kg2 Rh6 23.Kg1 Rb6 24.Kf1 Rf6 25.Kg1 Rh6 26.Kg2 Kg5 27.Kg1 Ra6 28.Kf1 Bf7 29.Kg1 Ra4 30.Kf1 Rxb4 31.cxb4 Be6 32.Ke1 c3 33.Kd1

Code: Select all

FEN: 8/1r3b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w - - 0 2

SugaR AI ICCF 2.50 avx2:
...
Found 513 tablebases
NNUE evaluation using nn-13406b1dcbe0.nnue enabled
 1/1	00:00	 318	159k	-5,59	2. ... Ra7
 2/2	00:00	 1k	519k	-6,87	2. ... Rb8 3.Ke1
 3/3	00:00	 3k	1.522k	-5,76	2. ... Ra7 3.Ke1 a3
 4/4	00:00	 8k	3.961k	-5,93	2. ... Bg8 3.Kd1 a3 4.Ke1
 5/5	00:00	 14k	4.560k	-6,05	2. ... Bg8 3.Ke2 a3 4.Kd1 Be6
 6/16	00:00	 95k	11.932k	-6,79	2. ... Rb8 3.Ke2 Kg6 4.Kd1 Rf8 5.Kd2 a3
 7/15	00:00	 120k	13.278k	-6,59	2. ... Kg6 3.Ke2 Rb8 4.Kf1 Rf8 5.Kg2 a3
 8/14	00:00	 887k	17.066k	-6,65	2. ... Rb8 3.Ke2 Kg6 4.Kf1 Rh8 5.Kg1 Kg5 6.Kf1 Rh1+ 7.Ke2 a3
 9/36	00:00	 1.453k	16.329k	-6,64	2. ... Rb8 3.Ke2 Rh8 4.Kf1 Kg5 5.Kg1 Kg6 6.Kg2 a3 7.Kg1 Kh5 8.Kf1
 10/32	00:00	 2.847k	17.468k	-6,48	2. ... Rb8 3.Ke2 Rf8 4.Ke1 Rh8 5.Kf1 Kg6 6.Kg1 Kg5 7.Kg2 a3 8.Kg1
 11/52	00:00	 11.457k	20.984k	-6,38	2. ... Rd7 3.Ke2 Rd8 4.Ke1 Rf8 5.Ke2 Re8 6.Ke1 Kg6 7.Kf1 Rc8 8.Kg1 Rh8 9.Kg2 a3 10.Kg1 Be6 11.Kg2 Kf7
 12/46+	00:03	 87.390k	22.901k	-6,09	2. ... Rd7 3.Ke2
 12/46+	00:03	 90.057k	22.915k	-5,18	2. ... Rd7 3.Ke2
 12/46	00:04	 97.721k	22.999k	-5,85	2. ... Rb8 3.Ke2 Kg6 4.Kf1 Rh8 5.Kg2 Rh7 6.Kg1 Rh5 7.Kg2 Be8 8.Kg1 Kg7 9.Kg2 Kg8 10.Kg1 Bc6 11.Kg2 a3 12.Kg1 Bb7 13.Kg2 Kf8 14.Kg1
 13/24	00:04	 97.750k	23.000k	-5,42	2. ... Rb8 3.Ke2 Rh8 4.Kf1 Kg6 5.Kg2 Rh6 6.Kg1 Rh5 7.Kg2 Be8 8.Kg1 Kg7 9.Kg2 Kg8 10.Kg1 Bc6 11.Kg2 a3 12.Kg1 Bb7 13.Kg2 Kf8
 14/19	00:04	 97.810k	22.998k	-5,25	2. ... Rb8 3.Ke2 Rh8 4.Kf1 Kg6 5.Kg1 Rh5 6.Kg2 Be8 7.Kg1 Kg7 8.Kg2 Kg8 9.Kg1 Bc6 10.Kg2 a3 11.Kg1 Bb7
 15/22-	00:04	 98.762k	23.016k	-5,73	2. ... Be6
 15/28-	00:04	 101.193k	23.130k	-6,16	2. ... Be6
 15/28	00:04	 101.435k	23.137k	-6,29	2. ... Rb8 3.Ke2 Re8 4.Kf1 Kg5 5.Kg1 Rh8 6.Kg2 Rh7 7.Kg1 Kg6 8.Kg2 Kf6 9.Kg1 Ke6 10.Kg2 Kd6 11.Kg1 Kc6 12.a3 Kb7 13.Kg2 Bg8 14.Kg1
 16/21-	00:04	 101.454k	23.142k	-6,32	2. ... Rb8
 16/26	00:04	 102.813k	23.229k	-6,06	2. ... Rb8 3.Ke2 Kg5 4.Kf1 Rg8 5.Kg1 Rh8 6.Kg2 Rh3 7.Kg1 Rh7 8.Kg2 Rh8 9.Kg1 Be6 10.Kg2 Kg6 11.Kg1 Kf7 12.Kg2 a3
 17/28-	00:04	 107.323k	23.377k	-6,15	2. ... Rb8
 17/28	00:04	 107.960k	23.388k	-6,10	2. ... Rb8 3.Ke2 Be6 4.Kf1 Kg6 5.Kg2 Rb7 6.Kg1 Rh7 7.Kg2 Kf5 8.Kg1 Bd7 9.Kg2 Ke6 10.Kg1 Kd6 11.Kg2 Kc7 12.a3 Kd6 13.Kg1 Ke6 14.Kg2
 18/30-	00:04	 111.704k	23.507k	-6,98	2. ... Be8
 18/30	00:04	 112.180k	23.537k	-6,93	2. ... Be8 3.Ke1 Rh7 4.Kf1 Kg5 5.Kg2 Rh6 6.Kg1 Rh8 7.Kg2 Bf7 8.Kg1 Be6 9.Kg2 Rh3 10.Kg1 Rh7 11.Kg2 Kf5 12.Kg1 Bd7 13.Kg2 Ke6 14.a3 Be8 15.Kg1
 19/34	00:04	 113.507k	23.598k	-7,00	2. ... Be8 3.Ke1 Rd7 4.Kf1 Rh7 5.Kg2 Kg6 6.Kg1 Bf7 7.Kg2 Rh6 8.Kg1 Rh8 9.Kg2 Be6 10.Kg1 Rh7 11.Kg2 Kf5 12.Kg1 Bd7 13.Kg2 Ke6 14.a3
 20/36	00:05	 136.227k	24.977k	-7,04	2. ... Bg6 3.Ke2 Rh7 4.Kf1 Bf7 5.Kg1 Kg5 6.Kg2 Rh8 7.Kg1 Kg6 8.a3 Rb8 9.Kf1 Rf8 10.Kg2 Kf5 11.Kg1
 21/38	00:06	 161.649k	26.195k	-7,05	2. ... Bg6 3.Ke2 Rh7 4.Kf1 Rg7 5.Kg2 Rg8 6.Kg1 Bf7 7.Kf1 Rb8 8.a3 Rb7 9.Ke2 Ra7 10.Kf1 Kg6 11.Ke1 Be6 12.Kf1 Rh7 13.Kg1
 22/36	00:07	 216.257k	28.228k	-7,06	2. ... Bg6 3.Ke2 Rb8 4.Kf1 Rb6 5.Kg1 Be8 6.a3 Rb8 7.Kf1 Bf7 8.Ke1 Rg8 9.Kf1 Ra8 10.Kg2 Rc8 11.Kg1
 23/38	00:09	 293.592k	29.465k	-7,07	2. ... Re7 3.Ke1 Rb7 4.Kf1 Kg6 5.Kg2 Kg5 6.Kg1 Bg6 7.Kf1 Rd7 8.Kg1 Rh7 9.Kg2 Bf7 10.Kg1 a3 11.Kg2 Be8 12.Kf1 Rh1+ 13.Kg2 Ra1
 24/48	00:23	 721.799k	30.189k	-7,11	2. ... Re7 3.Ke1 Be6 4.Kf1 Rh7 5.a3 Rg7 6.Kg2 Rd7 7.Kg1 Ra7 8.Kg2 Rg7 9.Kh1 Kg6 10.Kg1 Rh7 11.Kg2
 25/33	00:24	 750.010k	30.292k	-7,15	2. ... Re7 3.Ke1 Be6 4.Kf1 Rh7 5.a3 Rh8 6.Kg2 Rb8 7.Kf1 Rg8 8.Kg1 Rg7 9.Kf1 Kg6 10.Kg1 Rh7 11.Kg2
 26/44	00:33	 1.014.412k	30.337k	-7,15	2. ... Re7 3.Ke1 Kg5 4.Kf1 Rc7 5.Kg1 Rc8 6.Kf1 Rb8 7.a3 Kg6 8.Kg2 Kh5 9.Kf1 Rd8 10.Kg2
 27/58	00:42	 1.261.412k	29.792k	-7,16	2. ... Re7 3.Ke1 Kg5 4.Kf1 Rc7 5.Kg1 Rc8 6.Kf1 Rh8 7.Kg2 Rh3 8.Kg1 Rh6 9.Kg2 Rh8 10.Kg1 Bg6 11.Kg2 Rh7 12.Kg1 Kf6 13.Kg2 Bf7 14.Kg1 Kg6 15.Kg2 Bg8 16.Kg1 Kg5 17.Kg2 Kf6 18.Kg1 a3 19.Kg2 Be6 20.Kg1 Kg6 21.Kg2
 28/60	00:54	 1.659.616k	30.333k	-7,16	2. ... Kh6 3.Kd1 Be6 4.Ke1 Kg5 5.Kf1 Rh7 6.Kg2 Rf7 7.Kg1 a3 8.Kg2 Rb7 9.Kf1 Ra7 10.Kg2
 29/139	06:30	 10.014.021k	25.627k	-7,16	2. ... Kh6 3.Kd1 Be6 4.Ke1 Kg5 5.Kf1 Rh7 6.Kg2 Kf5 7.Kg1 Bg8 8.Kg2 Bf7 9.Kg1 Kg5 10.Kg2 Rh4 11.Kg1 Rh8 12.Kg2 Bg6 13.Kg1 Rh6 14.Kg2 Be8 15.a3 Kh5 16.Kh1 Kg6+ 17.Kg2 Rh7 18.Kg1
 30/40	09:25	 14.650.128k	25.895k	-7,16	2. ... Kh6 3.Kd1 Be6 4.Ke1 Kg5 5.Kf1 Rh7 6.Kg2 Kf5 7.Kg1 Kf6 8.a3 Kg5 9.Kg2 Rh8 10.Kg1
 31/34	11:38	 18.201.385k	26.073k	-7,17	2. ... Re7 3.Ke1 a3 4.Kf1 Re8 5.Ke1 Kg6 6.Kf1 Bg8 7.Kg1 Re5 8.dxe5 Kf5 9.e6 Kxe6 10.Kf1 d4 11.exd4 Kd5 12.Kg2 e3
 32/32	11:59	 18.756.608k	26.058k	-7,17	2. ... Re7 3.Ke1 a3 4.Kf1 Bg8 5.Ke1 Kg6 6.Kf1 Re5 7.dxe5 Kf5 8.Ke2 Bh7 9.Kd1 Kxe5 10.Kc2 Ke6 11.Kd2 d4 12.cxd4
 33/20	12:01	 18.788.457k	26.054k	-7,17	2. ... Re7 3.Ke1 a3 4.Kf1 Bg8 5.Ke1 Kg6 6.Kf1 Re5 7.dxe5 Kf5 8.Ke2 Kxe5 9.Kf1 d4 10.exd4+ Kd5 11.Kg2 e3
 34/34	26:02	 37.912.038k	24.262k	-7,17	2. ... Re7 3.Ke1 a3 4.Kf1 Re5 5.dxe5 Kg5 6.Kg1 Kf5 7.Kf1 Bg8 8.Ke2 Bh7 9.Kf1 Kxe5 10.Ke1 Ke6 11.Kd2 d4 12.exd4
 35/28	27:06	 39.732.133k	24.433k	-7,17	2. ... Re7 3.Ke1 a3 4.Kf1 Re5 5.dxe5 Kg5 6.Kg1 Kf5 7.Kf1 Be6 8.Ke1 Kxe5 9.Kd1 Bf5 10.Kc2 d4 11.exd4+ Kd6 12.Kd2 e3+ 13.fxe3
 36/26	27:13	 39.917.848k	24.439k	-7,17	2. ... Re7 3.Ke1 a3 4.Kf1 Re5 5.dxe5 Kg5 6.Kg1 Kf5 7.Kf1 Be6 8.Ke1 Bg8 9.Kd2 Kxe5 10.Ke2 Ke6 11.Kd1 d4 12.exd4
 37/36	27:26	 40.218.584k	24.425k	-7,17	2. ... Re7 3.Ke1 a3 4.Kf1 Re5 5.dxe5 Kg5 6.Kg1 Kf5 7.Kf1 Kxe5 8.Ke2 Bg6 9.Ke1 Bf5 10.Kd1 Ke6 11.Kc2 Bh7 12.Kd1 d4 13.exd4
 38/36	28:29	 41.714.991k	24.406k	-7,17	2. ... Re7 3.Ke1 a3 4.Kf1 Re5 5.dxe5 Kg5 6.Kg1 Kf5 7.Kf1 Kxe5 8.Ke2 Bg6 9.Ke1 d4 10.exd4+ Ke6 11.Kd2 e3+ 12.Kxe3
 39/36	1:05:22	 98.981.182k	25.235k	-7,17	2. ... Re7 3.Ke1 a3 4.Kf1 Re5 5.dxe5 Kg5 6.Kg1 Kf5 7.Kf1 Kxe5 8.Ke2 Bg6 9.Ke1 d4 10.exd4+ Ke6 11.Kd2 e3+ 12.Kxe3
 31/69	1:05:22	 98.981.182k	25.235k	-7,19	2. ... Kg5 3.Ke1 Be8 4.Kf1 Kf5 5.Kg1 Rh7 6.Kg2 Rh8 7.Kg1 Bf7 8.Kg2 Kg6 9.Kg1 Rh7 10.Kg2 Kh5 11.Kf1 Kg5 12.Kg2 Rh4 13.Kg1 Rh3 14.Kg2 Bg8 15.Kg1 Rh7 16.Kg2 Kf6 17.Kg1 Rh8 18.Kg2 Kg6 19.Kg1 Bf7 20.Kg2 Be8 21.Kg1 Rh7 22.Kg2 Rh3 23.Kg1 Kf6 24.Kg2 Rh8 25.a3 Bg6 26.Kg1 Kg5 27.Kg2 Bf7 28.Kg1 Be6 29.Kg2
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hgm
Posts: 28428
Joined: Fri Mar 10, 2006 10:06 am
Location: Amsterdam
Full name: H G Muller

Re: Fortress hard to detect, The Engines Crackers 04

Post by hgm »

This fortress is rather trivial to detect. The Pawn structure is such that the black King and Bishop are trapped, and with the white King shuttling between g1/g2 there is no entry for the Rook. Even after 2... b3 the sacrifice Rxb4 cxb4 would maintain the King/Bishop confinement.

Evaluation in a position where the Pawn structure recognizes a fortress candidate should, after the ply counter gets above 10 or so, produce a drawish score when the potential 'fortress breaker' (here: the Rook) is still on his own board half (or perhaps even not behind the forward-most white Pawn, i.e. on rank 4-8) biding time. And it should eliminate trapped pieces from the position key used to detect repetitions, to avoid black can dodge the drawish score by parking his Rook on f3 or h3, shuffling the King and Bishop.
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Eelco de Groot
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Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: Fortress hard to detect, The Engines Crackers 04

Post by Eelco de Groot »

Vinvin wrote: ↑Sun Nov 13, 2022 12:15 am From https://glarean-magazin.ch/2021/09/20/c ... s-puzzles/

1r6/1n1R1b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w – – bm Rxb7;

[d]8/1r3b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w - - 0 2

It's hard to get a drawish evaluation after 1.Rxb7! Rxb7.
Results for Crystal 5, Sting-sf-28 and SugaR AI ICCF 2.50 on AMD 5850x 16 threads

Code: Select all

FEN: 8/1r3b2/8/1p1p3k/pPpPp1p1/2P1P1P1/P2K1P2/8 b - - 0 2

Crystal 5 KWK bmi2:
NNUE evaluation using nn-ad9b42354671.nnue enabled
 1/1	00:00	 583	583k	-5,51	2. ... Rb8 3.Ke2 Kg5
 2/2	00:00	 2k	1.525k	-5,51	2. ... Rb8 3.Ke2
 3/3	00:00	 3k	1.479k	-5,51	2. ... Rb8 3.Ke2 Kg5
 4/4	00:00	 5k	2.522k	-5,76	2. ... Rb8 3.Ke2 Kg5 4.Kf1 Rh8 5.Kg2
 5/7	00:00	 8k	4.165k	-6,02	2. ... Rb8 3.Ke1 Rh8 4.Kf1 Kg5 5.Kg2
 6/6	00:00	 13k	6.552k	-5,79	2. ... Rb8 3.Ke1 Rh8 4.Kf1 Kg5 5.Ke2 Rh1
 7/8	00:00	 57k	18.884k	-2,89	2. ... Rb6 3.Ke1 Rh6 4.Kf1 Kg6 5.Kg2 a3 6.Kg1
 8/9	00:00	 64k	21.416k	-2,89	2. ... Rb6 3.Ke1 Rh6 4.Kf1 Kg6 5.Kg2 a3 6.Kg1 Kh7
 9/90	00:00	 3.166k	20.429k	-2,56	2. ... Be6 3.Ke1 Rh7 4.Kf1 a3 5.Kg2 Kg6 6.Kg1 Ra7 7.Kf1
 10/16	00:00	 3.232k	20.330k	-2,47	2. ... Be6 3.Ke1 Rh7 4.Kf1 a3 5.Kg2 Kg6 6.Kg1 Ra7 7.Kg2 Kf5 8.Kf1 Ra4 9.Ke1 Bf7 10.Kf1
 11/56	00:00	 3.509k	20.399k	-2,46	2. ... Be6 3.Ke1 Rh7 4.Kf1 Kg6 5.Kg2 a3 6.Kg1 Kf6 7.Kg2 Rh5 8.Kg1 Bf7 9.Kg2 Ke6 10.Kg1 Kd6 11.Kg2 Rh8 12.Kg1 Kc7 13.Kg2 Be6 14.Kg1 Bd7 15.Kg2 Kc6 16.Kg1 Ra8 17.Kg2 Ra4 18.Kf1 Rxb4 19.cxb4 Be8
 12/92	00:00	 18.375k	22.409k	-4,72	2. ... Rb6 3.Ke2 Rh6 4.Kf1 Kg5 5.Kg1 Kf6 6.Kg2 Kg6 7.Kg1 Rh5 8.Kg2 Kf5 9.Kg1 a3 10.Kg2 Ke6 11.Kg1 Rh8 12.Kg2 Ke7 13.Kg1 Rh6 14.Kg2 Ra6 15.Kf1 Bh5 16.Kg1
 13/92	00:01	 35.653k	22.694k	-5,03	2. ... Be6 3.Ke2 Rc7 4.Kf1 Kg6 5.Kg1 Rh7 6.Kg2 Rh5 7.Kg1 Rh8 8.Kg2 Kf6 9.Kg1 Bf5 10.Kg2 Kf7 11.Kg1 Kg7 12.Kg2 Bd7 13.Kg1 Rh5 14.Kg2 a3 15.Kg1 Bf5 16.Kg2 Kf6 17.Kg1 Kf7 18.Kg2 Rh6 19.Kg1 Bc8 20.Kg2 Be6 21.Kg1 Bf5 22.Kg2 Ke7 23.Kg1 Rh8 24.Kg2 Kd6 25.Kg1 Ra8 26.Kg2 Ra4 27.Kf1 Bd7 28.Ke1
 14/90	00:03	 81.786k	23.110k	-5,63	2. ... Rd7 3.Ke2 Kg5 4.Kf1 Rd6 5.Kg1 Rh6 6.Kg2 Be6 7.Kg1 Bg8 8.Kg2 Kf6 9.Kg1 Bf7 10.Kg2 Ke6 11.Kg1 Rh8 12.Kg2 a3 13.Kg1 Bg6 14.Kg2 Rh7 15.Kg1 Kd6 16.Kg2 Bh5 17.Kf1 Rf7 18.Ke2
 15/48-	00:04	 93.059k	22.966k	-5,83	2. ... Rd7
 15/78-	00:04	 93.217k	22.965k	-5,88	2. ... Rd7
 15/78-	00:04	 94.152k	22.953k	-5,93	2. ... Rd7
 15/78-	00:04	 108.388k	22.968k	-6,61	2. ... Rb8
 15/78-	00:05	 119.784k	22.952k	-6,75	2. ... Bg8
 15/78-	00:05	 133.030k	22.889k	-6,93	2. ... Rb8
 15/78-	00:05	 133.067k	22.891k	-7,27	2. ... Rb8
 15/78+	00:07	 165.468k	22.695k	-5,41	2. ... Rb8 3.Ke1
 15/78-	00:08	 191.502k	22.490k	-6,50	2. ... Rb8
 15/78-	00:08	 191.675k	22.489k	-6,96	2. ... Rb8
 15/82	00:09	 211.697k	22.435k	-5,12	2. ... Be6 3.Ke2 Ra7 4.Kf1 Kg5 5.Kg2 Rh7 6.Kg1 Bc8 7.Kg2 Rh5 8.Kg1 Rh6 9.Kg2 Kf5 10.Kg1 Be6 11.Kg2 Bd7 12.Kg1 Be8 13.Kg2 Kg6 14.Kg1 Rh3 15.Kg2 Bd7 16.Kg1 a3 17.Kg2 Rh7 18.Kg1 Rf7 19.Kg2 Be6 20.Kf1
 16/74-	00:09	 212.245k	22.431k	-5,38	2. ... Be6
 16/74-	00:10	 224.673k	22.405k	-5,41	2. ... Be6
 16/74-	00:10	 229.541k	22.478k	-6,18	2. ... Be6
 16/74-	00:12	 293.391k	24.342k	-6,38	2. ... Rb8
 16/74-	00:13	 328.873k	25.136k	-6,69	2. ... Be6
 16/74-	00:13	 328.886k	25.137k	-7,02	2. ... Be6
 16/98	00:16	 448.771k	27.129k	-5,21	2. ... Be6 3.Ke2 Kg6 4.Kf1 Ra7 5.Kg2 Rh7 6.Kg1 Bg8 7.Kg2 Rh4 8.Kg1 Kf7 9.Kg2 Kf6 10.Kg1 Bh7 11.Kg2 Kg5 12.Kg1 Bf5 13.Kg2 a3 14.Kg1 Be6 15.Kg2 Rh8 16.Kg1 Kg6 17.Kg2 Ra8 18.Kg1 Ra4 19.Kf1 Bf7
 17/58-	00:18	 518.274k	27.914k	-6,32	2. ... Be6
 17/58-	00:20	 576.102k	28.457k	-6,38	2. ... Be6
 17/62-	00:20	 579.456k	28.482k	-7,06	2. ... Be6
 17/86-	00:39	 1.248.323k	31.393k	-7,28	2. ... Kg5
 17/86-	00:39	 1.248.737k	31.392k	-7,88	2. ... Kg5
 17/86+	01:25	 2.804.847k	32.693k	-5,74	2. ... Kg5 3.Ke1
 17/108	01:46	 3.479.542k	32.795k	-5,56	2. ... Kg5 3.Ke1 Kf6 4.Kf1 Be8 5.Kg2 Bg6 6.Kh2 Rh7+ 7.Kg2 Rh5 8.Kg1 Rh3 9.Kg2 Bf7 10.Kg1 Be6 11.Kg2 Kg6 12.Kg1 Rh8 13.Kg2 Kg5 14.Kg1 Bf5 15.Kg2 a3 16.Kg1 Kf6 17.Kg2 Kg6 18.Kg1 Ra8 19.Kg2 Ra4 20.Kf1 Ra6 21.Ke2
 18/54-	01:48	 3.553.586k	32.803k	-5,96	2. ... Kg5
 18/72-	01:55	 3.795.693k	32.915k	-6,01	2. ... Kg5
 18/92-	02:44	 5.467.909k	33.196k	-7,22	2. ... Kg5
 18/114-	03:02	 6.061.505k	33.190k	-7,49	2. ... Be6
 18/114+	03:27	 6.776.981k	32.681k	-5,78	2. ... Be6 3.Ke1
 18/120-	03:27	 6.796.315k	32.681k	-6,82	2. ... Be6
 18/120-	03:28	 6.811.692k	32.681k	-7,37	2. ... Be6
 18/182+	9:48:31	1.160.078.599k	32.853k	-5,36	2. ... Be6 3.Ke1
Why Crystal does not get to a more drawish eval seems to be mostly because the search explodes, and with 18/182+ after a trillion nodes {!} there does not seem to be any hope of resolving the double singular extensions -I'm just speculating those are inside it may be anything other-, or something like that :?

If you can get to depths higher than 18 I think score will go down 8-) Here it is at -3.30 for White (hash only 7.6%)

[pgn]
[Event "?"]
[Site "?"]
[Date "2022.11.13"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "1r6/1n1R1b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w - -"]

1. Rxb7 Rxb7 2. g3 *
[/pgn]

[fen]8/1r3b2/8/1p1p3k/pPpPp1p1/2P1P1P1/P2K1P2/8 b - -[/fen]

Engine: Crystal 5 KWK (512 MB)
gemaakt door the Stockfish developers (see AUTHORS f

18 45:01 -3.30 2...Lg8 3.Ke1 Kg5 4.Kf1 Tb6 5.Kg1 Th6
6.Kg2 Kg6 7.Kg1 Lh7 8.Kg2 Kf5 9.Kg1 a3
10.Kg2 Kg6 11.Kg1 Th5 12.Kg2 Kf7
13.Kg1 Lg8 14.Kg2 Ke7 15.Kg1 Le6 (4.637.400.300) 1716

18 45:01 -2.95 2...Kg6 3.Ke1 Tb8 4.Kf1 Th8 5.Kg1 Th3
6.Kg2 Le6 7.Kg1 Th5 8.Kg2 Th7 9.Kg1 Kg7
10.Kg2 Kf8 11.Kg1 a3 12.Kg2 Th4
13.Kg1 Kf7 14.Kg2 Ke7 15.Kg1 Th5 (4.637.400.300) 1716

17 45:01 -4.74 2...Kg5 3.Ke2 Tb8 4.Kf1 Th8 5.Kg2 Lg8
6.Kg1 Th7 7.Kg2 Kf6 8.Kg1 Kf7 9.Kg2 Ke7
10.Kg1 Kd7 11.Kg2 Kc7 12.Kg1 Kb7
13.Kg2 a3 14.Kg1 Kb8 15.Kg2 Lf7 (4.637.400.300) 1716

17 45:01 -4.72 2...Le6 3.Ke1 Kg6 4.Kf1 Tg7 5.Kg1 Th7
6.Kg2 Th3 7.Kg1 Kf7 8.Kg2 Th5 9.Kg1 Ke7
10.Kg2 Kd8 11.Kg1 Lg8 12.Kg2 Lf7
13.Kg1 Le8 14.Kg2 Th6 15.Kg1 a3 (4.637.400.300) 1716
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
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jhellis3
Posts: 548
Joined: Sat Aug 17, 2013 12:36 am

Re: Fortress hard to detect, The Engines Crackers 04

Post by jhellis3 »

Thanks for this position. This is exactly the kind of position that is useful for testing & development. It is not overly complicated, no obscene material imbalance, is not impractical to theoretically resolve, and should be resolved by the program.

All too often I see positions with double digit r50 resets, multiple major piece sacrifices 20+ ply deep, or absurd material configurations. wHy CaNT sTUpiD eNgiNE sOlVe tHiS?

So thank you for providing a reasonable position that highlights a shortcoming in clear and straightforward manner.
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User avatar
Ajedrecista
Posts: 2164
Joined: Wed Jul 13, 2011 9:04 pm
Location: Madrid, Spain.

Re: Fortress hard to detect, The Engines Crackers 04.

Post by Ajedrecista »

Hello:

The Spanish GM Miguel Illescas worked in this problem for several years and there are different versions with different outcomes: the first and the second from 2006, the third one from 2017. The problem of the OP is the third version.

https://en.chessbase.com/post/on-human- ... e-in-chess

https://www.arves.org/arves/index.php/e ... t-section1

https://www.peonderey.com/2017/05/12/re ... fortaleza/

La Fortaleza (7th May, 2006):
[d]1r6/1nR2bp1/7k/1p1p4/pPpPp1p1/P1P1P3/3K1PP1/8 w - - 0 1
[pgn][Event ""]
[Site ""]
[Date "07.05.2006"]
[Round ""]
[White "Illescas, Miguel"]
[Black "(=0433.77d2h6)"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1r6/1nR2bp1/7k/1p1p4/pPpPp1p1/P1P1P3/3K1PP1/8 w - - 0 1"]
[PlyCount "9"]
[EventDate "2006"]

1. Rxb7 Rxb7 2. g3 Kg5 3. Ke2 Rb6 4. Kf1 Rh6 5. Kg2[/pgn]

La Fortaleza (2) (7th May, 2006):
[d]1r6/1nR2bp1/7k/1p1p4/pPpPp1p1/P1P1P3/3K1PP1/8 w - - 0 1
[pgn][Event ""]
[Site ""]
[Date "07.05.2006"]
[Round ""]
[White "Illescas, Miguel"]
[Black "(=0433.77d2h6)"]
[Result "0-1"]
[SetUp "1"]
[FEN "1r6/1nR2bp1/7k/1p1p4/pPpPp1p1/P1P1P3/3K1PP1/8 w - - 0 1"]
[PlyCount "4"]
[EventDate "2006"]

1. Rxb7 Rf8 2. g3 (2. Rxf7 (2. Ke2 g3) Rxf7 3. Ke2 g3) Kg6[/pgn]

La Fortaleza (3) (20th March, 2017):
[d]1r6/1n1R1b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w - - 0 1
[pgn][Event "debute Timman-65 JT"]
[Site ""]
[Date "20.03.2017"]
[Round ""]
[White "Illescas, Miguel"]
[Black "(=0433.76d2h5)"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "1r6/1n1R1b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w - - 0 1"]
[PlyCount "27"]
[EventDate "2017"]

{A problem computers cannot solve... yet} 1. Rxb7 $1 (1. Rxf7 $2 g3 $1 $19) 1... Rf8 $1 (1... Rxb7 2. g3 $1 Kg5 3. Ke2 Rb6 4. Kf1 Rh6 5. Kg2 $11 {draw as in the main line}) 2. g3 $1 (2. Ke2 $2 g3 $1 $19) 2... Kg6 $1 3. Rb6+ $1 (3. Rxb5 $2 Be8 $19) (3. Ke2 $2 Rh8 $19) 3... Kg7 4. Rh6 $1 Kxh6 5. Ke2 ({or} 5. Ke1) 5... Kg5 6. Kf1 $1 Rh8 7. Kg2 ({or} 7. Kg1) 7... a3 8. Kg1 $1 Ra8 9. Kg2 ( {or} 9. Kf1) 9... Ra4 10. Kf1 $1 Be6 11. Ke1 ({or} 11. Ke2) 11... Ra8 12. Kf1 $1 Bf7 13. Kg2 ({or} 13. Kg1) 13... Ra4 14. Kf1 1/2-1/2[/pgn]

------------------------

Is La Fortaleza (2) a black win or white can save the draw?

Regards from Spain.

Ajedrecista.
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peter
Posts: 3491
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Fortress hard to detect, The Engines Crackers 04

Post by peter »

Hi Vincent!
Vinvin wrote: ↑Sun Nov 13, 2022 12:15 am [d]8/1r3b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w - - 0 2

It's hard to get a drawish evaluation after 1.Rxb7! Rxb7.
Crystallite is a modification of Crystal's from user dorsz in OpenChess forum.

8/1r3b2/8/1p1p3k/pPpPp1p1/2P1P3/P2K1PP1/8 w - - 0 1

Analysis by Crystallite 1.1a-bmi2:

2.g3 Kg5 3.Ke1 Rb8 4.Kf1 Ra8 5.Kg1 Rh8 6.Kg2 Bg8 7.Kg1 Kf6 8.Kg2 Rh6 9.Kg1 Be6 10.Kg2 Bc8 11.Kg1 Rh7 12.Kf1 Ke7
Black has a decisive advantage: -+ (-2.79) Depth: 10/44 00:00:00
2.g3 Kg5 3.Ke1 Rb8 4.Kf1 Re8 5.Kg2 Rh8 6.Kg1 Kg6 7.Kg2 Rf8 8.Kg1 Bg8 9.Kg2 a3 10.Kf1 Re8 11.Kg2 Bh7 12.Kf1 Rd8 13.Kg2 Kf5 14.Kg1 Rg8 15.Kf1
Black is clearly better: -+ (-2.05) Depth: 11/52 00:00:00

At this point engine always gets stuck for many minutes with resolving the fail high, at longest time i waited about twenty minutes. Yet with start stop that waiting always at my several trials could be skipped at once, interruption here was done just after one minute of first pondering:

2.g3 Rd7 3.Ke2 Rd8 4.Kf1 Kg6 5.Kg2 Kh5
The position is equal: = (0.00) Depth: 10/10 00:00:00
2.g3 Rd7 3.Ke1 Rd8 4.Kf1 Kg6 5.Kg2 Kh5
The position is equal: = (0.00) Depth: 11/23 00:00:00
Peter.
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User avatar
hgm
Posts: 28428
Joined: Fri Mar 10, 2006 10:06 am
Location: Amsterdam
Full name: H G Muller

Re: Fortress hard to detect, The Engines Crackers 04

Post by hgm »

BTW, a retrograde analysis of this position should conclude it is a draw after 1. g3 pretty fast. Only two Pawn structures are reachable without capture, and in each of those the white King can only be in 14 locations, the black King in 19, the Bishop in 10, and (to be generous) the Rook everywhere. That makes 2 x 64 x 19 x 14 x 10 = 340,480 positions. Only slightly larger than a 3-men EGT! Of course with only 4 movable pieces it is bound to be similar to a 4-men, even without confinement of the pieces. Building of such an EGT typically takes a fraction of a second.

The main issue is how to score the conversions to a successor EGT. In particular those with other Pawn structure than the relevant two (with the black Pawn on b4 or b3). The obvious assumption would be to declare a white loss when any of the a, c or f-Pawn is missing, black has the move, and the Rook is still on the board. The other Pawns are protected, and we can assume that capture of those would always be answered with a recapture, (so a double conversion), and use the score from the successor after that. Which in this case will always be an EGT without Rook, so effectively a 3-men, with at best a passer on the c-file as a bonus. These 3-men EGT will trivially evaluate to total draws.

The whole thing should perhaps have a 500msec solution time (single-treaded).
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