Whose engine finds Rxd4 as quickly as Ding did?

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j.t.
Posts: 268
Joined: Wed Jun 16, 2021 2:08 am
Location: Berlin
Full name: Jost Triller

Whose engine finds Rxd4 as quickly as Ding did?

Post by j.t. »

[fen]4r1k1/p1p1r1pp/1p2Pp1q/2pP4/2PnRp2/5Q1P/P2N1PP1/4R1K1 w - - 4 29[/fen]

Ding took just over a minute.
Nalwald is focused too much on material to even consider it ...

Code: Select all

setoption name Hash value 1024
position fen 4r1k1/p1p1r1pp/1p2Pp1q/2pP4/2PnRp2/5Q1P/P2N1PP1/4R1K1 w - - 4 29
go movetime 75000
info depth  1 time      2 nodes        32 nps   10000 hashfull     0 score cp   57 pv f3f4 
info depth  2 time      0 nodes        58 nps   58000 hashfull     0 score cp   57 pv f3f4 h6f4 
info depth  3 time      0 nodes       136 nps  136000 hashfull     0 score cp   57 pv f3f4 h6f4 e4f4 
info depth  4 time      0 nodes       395 nps  395000 hashfull     0 score cp   72 pv f3f4 h6g6 f4e3 h7h6 
info depth  5 time      0 nodes       675 nps  675000 hashfull     0 score cp   69 pv f3f4 h6f4 e4f4 e8d8 d2e4 
info depth  6 time      1 nodes      1382 nps  691000 hashfull     0 score cp   64 pv f3f4 h6f4 e4f4 g8f8 d2e4 e8d8 
info depth  7 time      3 nodes      2981 nps  745000 hashfull     0 score cp  -23 pv f3f4 g7g5 f4e3 d4c2 e3c3 c2e1 e4e1 
info depth  8 time      9 nodes     12374 nps 1237000 hashfull     0 score cp   17 pv f3d1 e8d8 d2f3 d4f5 d1d2 g7g6 
info depth  9 time     14 nodes     28815 nps 1921000 hashfull     0 score cp   81 pv f3f4 h6f4 e4f4 c7c6 d2f3 d4f3 f4f3 g8f8 d5c6 
info depth 10 time      5 nodes     17403 nps 2900000 hashfull     0 score cp   67 pv f3f4 h6f4 e4f4 d4c2 e1e4 c7c6 d2f3 c6d5 c4d5 g8f8 
info depth 11 time     12 nodes     34584 nps 2660000 hashfull     0 score cp   79 pv f3f4 h6f4 e4f4 d4c2 e1d1 c2d4 g1h2 d4e2 f4e4 e2d4 d2f3 
info depth 12 time      9 nodes     27960 nps 2796000 hashfull     0 score cp   62 pv f3f4 h6f4 e4f4 d4c2 e1e4 c2b4 a2a3 b4c2 a3a4 g8f8 d2b3 e8d8 
info depth 13 time     36 nodes    120099 nps 3245000 hashfull     0 score cp   80 pv f3f4 h6f4 e4f4 d4c2 e1c1 c2d4 g1f1 g8f8 f4f6 g7f6 d2e4 d4e6 d5e6 
info depth 14 time     37 nodes    116631 nps 3069000 hashfull     0 score cp   78 pv f3f4 h6f4 e4f4 d4c2 e1c1 c2b4 f4f5 b4d3 c1a1 e8d8 d2e4 g7g5 e4f6 g8f8 
info depth 15 time     77 nodes    255632 nps 3277000 hashfull     1 score cp   72 pv f3f4 h6f4 e4f4 d4c2 e1d1 e8d8 g1h2 g8f8 f4f5 h7h6 d2f3 c7c6 a2a4 c2b4 d1c1 
info depth 16 time    125 nodes    405711 nps 3219000 hashfull     2 score cp   75 pv f3f4 h6f4 e4f4 d4c2 e1c1 c2d4 f4e4 g8f8 d2b3 d4f5 c1d1 g7g5 d1e1 e8d8 e4g4 h7h6 
info depth 17 time    159 nodes    528556 nps 3303000 hashfull     4 score cp   73 pv f3f4 h6f4 e4f4 d4c2 e1c1 c2d4 f4e4 g8f8 d2b3 d4f5 e4f4 f5d6 a2a4 a7a5 c1d1 e8d8 f4g4 
info depth 18 time    614 nodes   2116651 nps 3441000 hashfull    10 score cp   75 pv f3f4 h6f4 e4f4 c7c6 d2f3 d4f3 f4f3 b6b5 f3e3 c6d5 c4d5 e8d8 e1d1 d8d6 e3c3 c5c4 a2a4 b5a4 
info depth 19 time    388 nodes   1307335 nps 3360000 hashfull    13 score cp   67 pv f3f4 h6f4 e4f4 c7c6 d2f3 d4f3 f4f3 c6d5 c4d5 c5c4 e1e4 b6b5 a2a4 a7a6 a4b5 a6b5 f3f5 g8f8 g1h2 
info depth 20 time    709 nodes   2399494 nps 3379000 hashfull    20 score cp   67 pv f3f4 h6f4 e4f4 c7c6 d2f3 d4f3 f4f3 c6d5 c4d5 e8d8 f3d3 d8d6 a2a4 g7g6 e1e4 g8f8 g1h2 f8g7 e4g4 h7h5 
info depth 21 time   1356 nodes   4790678 nps 3530000 hashfull    33 score cp   56 pv f3f4 h6f4 e4f4 c7c6 d2f3 d4f3 f4f3 e8d8 d5c6 g8f8 f3f5 d8d6 f5d5 d6c6 d5d8 e7e8 e6e7 f8f7 d8d7 c6e6 e1e6 f7e6 d7a7 
info depth 22 time   1897 nodes   6504090 nps 3426000 hashfull    51 score cp   55 pv f3f4 h6f4 e4f4 c7c6 d2f3 d4f3 f4f3 e8d8 d5c6 g8f8 f3g3 d8d6 c6c7 e7c7 e6e7 c7e7 e1e7 f8e7 g3g7 e7d8 g7a7 d6d1 g1h2 f6f5 
info depth 23 time   3762 nodes  13642702 nps 3625000 hashfull    89 score cp   46 pv f3f4 h6f4 e4f4 e8d8 d2f3 d4f3 f4f3 d8d6 f3f5 c7c6 e1e4 c6d5 c4d5 b6b5 a2a3 g7g6 f5f6 c5c4 g1h2 d6d5 
info depth 24 time   4941 nodes  16978610 nps 3435000 hashfull   134 score cp   47 pv f3f4 h6f4 e4f4 e8d8 d2f3 d4f3 f4f3 c7c6 d5c6 g8f8 f3g3 d8d6 c6c7 e7c7 e6e7 c7e7 e1e7 f8e7 g3g7 e7e6 g7a7 d6d4 a7c7 
info depth 25 time  15126 nodes  51068244 nps 3375000 hashfull   259 score cp   37 pv f3f4 h6f4 e4f4 e8d8 d2f3 d4f3 f4f3 g8f8 f3f5 c7c6 g2g4 g7g6 f5f6 f8g7 f6f7 e7f7 e6f7 g7f7 d5c6 d8d6 c6c7 d6c6 c7c8n c6c8 g4g5 c8e8 
info depth 26 time  44338 nodes 147531506 nps 3327000 hashfull   534 score cp   33 pv f3f4 h6f4 e4f4 e8d8 d2b3 d4b3 a2b3 c7c6 d5c6 d8c8 e1d1 e7e6 d1d7 
info depth 27 time   1363 nodes   5529772 nps 4054000 hashfull   540 score cp   33 pv f3f4 h6f4 e4f4 e8d8 d2b3 d4b3 a2b3 c7c6 d5c6 d8c8 e1d1 e7e6 d1d7 c8c6 d7a7 c6d6 g1h2 d6d3 f4g4 g7g6 g4g3 d3g3 h2g3 h7h6 a7b7 
bestmove f3f4
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Eelco de Groot
Posts: 4720
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: Whose engine finds Rxd4 as quickly as Ding did?

Post by Eelco de Groot »

Nice one!

Rebel 16.2 from Chris and Ed would play it with 2 seconds on the clock to think, one thread.

Code: Select all

CPU0: GenuineIntel Intel64 Family 6 Model 60 Stepping 3 3093 MHz
CPU1: GenuineIntel Intel64 Family 6 Model 60 Stepping 3 3093 MHz
CPU2: GenuineIntel Intel64 Family 6 Model 60 Stepping 3 3093 MHz
CPU3: GenuineIntel Intel64 Family 6 Model 60 Stepping 3 3093 MHz
GUI: Eindspeldatabanken met 0 stukken gevonden! [Buffer: 1 MB + intern 0.00 MB]
GUI: Shredderbases met 0 stukken gevonden (0 MB)
Rebel-16.2
(C) Ed Schroder, Chris Whittington 2003-2023
Code Base : Chris Whittington
NNUE development : Ed Schroder
==============================
set Hash to 512MB
set Ponder to value true
Engine: Rebel-16.2 (512 MB)
gemaakt door Ed Schroder and Chris Whittington (C) 2023
 20/34	 0:01 	+1.55++	1.Dxf4 (1.929.763)
 20/34	 0:01 	+1.29 	1.Dxf4 Dxf4 2.Txf4 Pc2 3.Td1 Td8 4.Te4 Td6 5.Te2 Pd4 6.Tee1 c6 7.Pe4 Td8 8.Pc3 cxd5 9.cxd5 Kf8 10.f4 Td6 11.Kf2 (2.166.614)
 21/35	 0:02 	+0.89++	1.Txd4 (3.723.679)
 21/31	 0:02 	+1.40++	1.Txd4 (3.764.997)
 21/34	 0:03 	+2.17++	1.Txd4 (3.933.555)
 21/34	 0:03 	+3.16 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 Dg6 4.Dxf4 Dg5 5.Dxg5 fxg5 6.Td1 Tf8 7.Txd3 Tee8 8.Pc6 Tf4 (4.164.195)
 22/32	 0:03 	+3.26++	1.Txd4 (4.369.519)
 22/32	 0:03 	+3.37++	1.Txd4 (4.581.574)
 22/30	 0:03 	+3.52++	1.Txd4 (4.761.830)
 22/34	 0:03 	+3.23 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 g6 4.Dxd3 a5 5.Pc6 Tg7 6.a4 Kh8 7.De4 Dg5 8.Df3 Dh6 9.e7 Tf7 10.Te4 Dg5 (5.033.066)
 23/34	 0:04 	+3.13++	1.Txd4 (5.556.335)
 23/30	 0:04 	+3.27 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 g6 4.Dxd3 a5 5.Df3 f5 6.Pc6 Tg7 7.Dd3 Dg5 8.Dd4 Dh6 9.Kh2 Dg5 10.a4 Dh4 11.Kg1 h6 12.Kf1 (5.759.132)
 24/38	 0:04 	+3.17++	1.Txd4 (5.984.336)
 24/36	 0:04 	+3.40++	1.Txd4 (6.162.500)
 24/44	 0:05 	+3.27 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 g6 4.Dxd3 a5 5.Dd2 f5 6.Pc6 Tg7 7.Dd3 Dg5 8.Dd4 Dh6 9.Pe5 Dg5 10.Pf3 Dd8 11.Dxf4 Dd6 12.De3 Dc5 13.Dxc5 bxc5 (6.389.048)
 25/41	 0:05 	+3.04++	1.Txd4 (6.955.651)
 25/38	 0:05 	+2.96 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 d2 4.Td1 g6 5.Txd2 f5 6.Te2 Tg7 7.Te5 a5 8.Pc6 Dh4 9.Kf1 h6 10.Te1 Kh7 11.Td1 a4 12.Td4 Tgg8 13.Kg1 Dg5 14.Txf4 (7.230.668)
 26/37	 0:05 	+3.06++	1.Txd4 (7.547.191)
 26/42	 0:06 	+3.16++	1.Txd4 (7.807.562)
 26/38	 0:06 	+2.86 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 d2 4.Td1 g6 5.Txd2 f5 6.Te2 a5 7.Pc6 Tg7 8.Te5 Dh4 9.Te1 h5 10.Kf1 Kh7 11.a3 Kg8 12.Te5 Kh7 13.Dd3 Df6 (8.170.645)
 27/43	 0:06 	+2.96++	1.Txd4 (8.395.551)
 27/39	 0:06 	+3.06++	1.Txd4 (8.625.882)
 27/39	 0:07 	+3.21++	1.Txd4 (8.950.012)
 27/39	 0:07 	+3.10++	1.Txd4 (9.440.425)
 27/44	 0:10 	+3.60 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 g6 4.Dxd3 Tg7 5.Dd2 f5 6.Te5 Dh4 7.Pf3 De7 8.Dxf4 Db4 9.g3 b5 10.cxb5 Dxf4 11.gxf4 Kf8 12.Pd4 Ke7 (12.838.497)
 28/39	 0:12 	+3.50++	1.Txd4 (15.291.416)
 28/32	 0:13 	+3.49++	1.Txd4 (16.582.257)
 28/47	 0:14 	+3.31 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 d2 4.Td1 g6 5.Txd2 a5 6.Te2 f5 7.Te5 Dh4 8.Pe2 h5 9.Pxf4 Df6 10.De3 h4 11.Pd3 a4 12.Dd4 g5 13.De3 Tg7 14.Dd4 (17.795.579)
 29/42	 0:14 	+3.41++	1.Txd4 (18.443.628)
 29/42	 0:15 	+3.51++	1.Txd4 (18.918.093)
 29/45	 0:16 	+3.66++	1.Txd4 (20.330.937)
 29/46	 0:16 	+3.42 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 d2 4.Td1 g6 5.Txd2 a5 6.Te2 f5 7.Te5 Dg5 8.Pe2 h5 9.Pxf4 h4 10.De3 Dh6 11.Dd4 Dg5 12.Te2 Dh6 13.Te3 Dg7 14.Te5 (21.055.319)
 30/43	 0:17 	+3.52++	1.Txd4 (21.831.573)
 30/47	 0:18 	+3.63++	1.Txd4 (22.423.333)
 30/37	 0:18 	+3.55++	1.Txd4 (23.038.141)
 30/42	 0:18 	+3.36 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 d2 4.Td1 g6 5.Txd2 a5 6.Te2 f5 7.Te5 Dg5 8.Pe2 h5 9.Pxf4 Tg7 10.De3 h4 11.a4 Tge7 12.g3 hxg3 13.fxg3 Th7 14.Kf2 (23.239.983)
 31/53	 0:19 	+3.46++	1.Txd4 (24.198.063)
 31/50	 0:20 	+3.56++	1.Txd4 (24.871.867)
 31/50	 0:22 	+3.71++	1.Txd4 (27.937.706)
 31/50	 0:27 	+3.81 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 d2 4.Td1 g6 5.Txd2 a5 6.Te2 f5 7.Te5 Dg5 8.Pe2 h5 9.Pxf4 Tg7 10.Te3 Df6 11.Pd3 Da1+ 12.Kh2 Dd4 13.Pe5 h4 14.a4 (33.905.266)
 32/36	 0:30 	+3.58++	1.Txd4 (37.734.252)
 32/53	 0:37 	+3.52 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 d2 4.Td1 g6 5.Txd2 f5 6.a4 Tf8 7.a5 g5 8.Te2 Df6 9.Pc6 Tg7 10.Pe5 bxa5 11.Da3 Te8 12.Da4 Tge7 13.Pc6 Tg7 14.Db5 (46.008.986)
 33/51	 0:40 	+3.63++	1.Txd4 (49.857.024)
 33/55	 0:43 	+3.73++	1.Txd4 (52.704.198)
 33/55	 0:55 	+3.88++	1.Txd4 (67.128.197)
 33/53	 1:04 	+3.65 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 d2 4.Td1 g6 5.Txd2 a5 6.Te2 f5 7.Te5 Dg5 8.Pe2 h5 9.Pxf4 Tg7 10.Te3 Dh4 11.Kh2 Df6 12.Pd3 Dd4 13.Pe5 h4 14.a4 (78.210.400)
 34/49	 1:07 	+3.75++	1.Txd4 (81.250.702)
 34/48	 1:09 	+3.85++	1.Txd4 (83.358.564)
 34/53	 1:21 	+4.01++	1.Txd4 (97.746.240)
 34/59	 2:00 	+4.07 	1.Txd4 cxd4 2.Pb3 d3 3.Pd4 g6 4.Dxd3 a5 5.Dd2 f5 6.Te5 Tg7 7.Pf3 Tge7 8.a4 Ta8 9.Kh2 Tee8 10.Dd4 Te7 11.h4 Tb8 12.c5 bxc5 13.Dxc5 Df8 14.Dxa5 (142.560.473)
beste zet: Te4xd4  tijd: 2:02.969 min nodes: 142.560.473
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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Ajedrecista
Posts: 2242
Joined: Wed Jul 13, 2011 9:04 pm
Location: Madrid, Spain.

Re: Whose engine finds Rxd4 as quickly as Ding did?

Post by Ajedrecista »

Hello Jost:

I guess that once an engine is chosen, it depends a lot on the hardware, number of threads used, hash size and so on.

SF 15.1 found 29.- Rxd4 in less than a second on a rather old PC:

Code: Select all

FEN: 4r1k1/p1p1r1pp/1p2Pp1q/2pP4/2PnRp2/5Q1P/P2N1PP1/4R1K1 w - - 4 29

Stockfish_15.1-x64-modern:
Found 145 tablebases
NNUE evaluation using nn-ad9b42354671.nnue enabled
  1/1	00:00	         556	278.000		+4,05	Qf3c3
  2/2	00:00	         736	368.000		+5,36	Qf3c3 Nd4e2+ Re4xe2
  3/3	00:00	         807	403.500		+6,19	Qf3c3 Nd4e2+ Re4xe2
  4/3	00:00	         997	498.500		+1,66	Qf3c3 f4f3 Nd2xf3
  5/5	00:00	       1.802	600.666		+0,50	Qf3xf4 Qh6xf4 Re4xf4
  6/6	00:00	       2.472	618.000		+0,93	Qf3d3 f6f5 Re4xd4 c5xd4
  7/8	00:00	       8.152	905.777		+0,96	Qf3d1 f6f5 Re4xd4 c5xd4
  8/8	00:00	       9.937	903.363		+1,03	Qf3d1 Nd4f5 Qd1g4 Nf5d6 Re4xf4
  9/10	00:00	      14.732	1.052.285	+1,18	Re4xd4 c5xd4 Nd2b3 d4d3 Qf3xd3 Qh6g6 Re1e4
 10/10	00:00	      16.963	1.060.187	+1,25	Re4xd4 c5xd4 Nd2b3 d4d3 Re1d1 Qh6g6 Nb3d4
 11/10	00:00	      22.780	1.139.000	+1,66	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1
 12/13	00:00	      44.438	1.139.435	+2,00	Re4xd4 c5xd4 Nd2b3 g7g5 Nb3xd4 Qh6g6 g2g4 f4xg3/ep f2xg3
 13/12	00:00	      75.821	1.053.069	+2,00	Re4xd4 c5xd4 Nd2b3 g7g5 Nb3xd4 Qh6g6 g2g4 f4xg3/ep f2xg3 h7h5 Nd4f5
 14/17	00:00	     142.293	981.331		+2,18	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a6 Rd2e2 f6f5 Nd4c6
 15/17	00:00	     168.719	975.254		+2,13	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a6 Nd4c6 Re7g7 a2a4 g6g5 Rd2e2
 16/23	00:00	     398.475	1.059.773	+2,17	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 Re2e5 a7a5 Nd4c6 Qh6g5 Kg1h2 Qg5h4 Re5e1 Qh4h6 Nc6d4 Qh6h4 Kh2g1
 17/30	00:00	     705.778	1.102.778	+2,12	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 Rd2d1 Re7g7 Rd1e1 Qh6h4 a2a4 a7a5 Re1e2 h7h6 Re2e1 Kg8h7 Nd4c6 h6h5
 18/32	00:01	   1.238.644	1.128.091	+2,11	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a6 Rd2e2 f6f5 Nd4c6 Re7g7 Re2e5 Qh6h4 Kg1f1 h7h5 Kf1e2 Kg8h7 a2a3 Kh7h6 Ke2f1 Kh6h7
 19/32	00:01	   1.737.619	1.147.700	+2,10	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 a2a4 a7a5 Rd2c2 Qh6g5 Rc2e2 f6f5 Nd4c6 h7h6 Re2e5 Kg8h7 Kg1f1 h6h5 Re5e1 Qg5h4 Kf1g1 Kh7h6 Nc6e5
 20/32	00:01	   1.854.200	1.155.985	+2,12	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 Re2e5 Qh6h4 Nd4c6 a7a6 Kg1f1 h7h5 Kf1e2 Kg8h7 a2a4 a6a5 Qf3c3 Qh4g5 Ke2f3 Qg5f6 Kf3xf4
 21/35	00:02	   2.262.913	1.159.279	+2,22	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 Re2e5 a7a5 Kg1f1 Qh6h4 Nd4c6 a5a4 Kf1e2 a4a3 Ke2d2 h7h6 Kd2c2 Kg8h7 Kc2c3 Re8a8 Kc3b4 Qh4g5
 22/39	00:02	   2.541.166	1.167.815	+2,23	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 Re2e5 a7a5 Qf3c3 Qh6g5 Qc3d2 Qg5h4 Qd2c1 a5a4 Re5e1 h7h6 Nd4f3 Qh4f6 Qc1xf4
 23/37-	00:03	   3.664.398	1.187.811	+2,08	Re4xd4 c5xd4
 23/38	00:03	   4.016.526	1.193.973	+2,09	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 Re2e5 a7a6 Nd4c6 Qh6g5 a2a4 a6a5 Re5e1 Qg5h6 Qf3d3 f4f3 Qd3xf3 Qh6d2 Qf3e2 Qd2xe2 Re1xe2 Kg8f8 Kg1f1
 24/37	00:03	   4.530.767	1.204.670	+2,09	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2c2 Qh6g5 Rc2e2 f6f5 Nd4c6 Qg5h6 Re2e5 a7a6 Kg1f1 Re8f8 Nc6d4 Qh6g5 a2a4 Rf8e8 Nd4c6 a6a5 Qf3c3 Qg5f6 c4c5 b6xc5 Qc3xc5
 25/39	00:05	   5.961.390	1.219.347	+2,12	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 Re2e5 a7a6 Nd4c6 Qh6h4 Re5e1 Qh4h6 Qf3d3 Qh6h4 a2a4 a6a5 Qd3c3 Qh4h6 Nc6e5 Rg7e7 c4c5 b6xc5 Qc3xc5 f4f3 Qc5xa5 g6g5 Ne5xf3 g5g4 h3xg4 f5xg4
 26/39	00:05	   6.382.135	1.224.272	+2,10	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 Nd4b5 a7a6 Nb5xc7 Rg7xc7 d5d6 Rc7e7 d6xe7 Qh6g5 Re2b2 b6b5 c4xb5 a6xb5 Rb2xb5 Qg5xe7 Qf3xf4 Qe7xe6 Rb5b8 Qe6e1+ Kg1h2 Re8xb8 Qf4xb8+ Kg8g7 Qb8b2+ Kg7g8
 27/42	00:06	   7.988.490	1.231.651	+2,18	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 Nd4b5 Rg7e7 Nb5xa7 g6g5 Na7c6 Re7g7 Nc6e5 Re8f8 Re2e1 g5g4 h3xg4 f5xg4 Ne5xg4 Qh6h4 Ng4e5 Rf8f5 d5d6 c7xd6 Qf3a8+ Rf5f8 Qa8d5 Rg7e7 Ne5c6 Re7e8 Re1e4 Kg8h8 e6e7 Rf8g8 Qd5d4+ Rg8g7
 28/43	00:09	  11.874.010	1.230.850	+2,18	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 a2a4 Re8f8 Rd2e2 a7a5 Re2e5 Qh6h4 Qf3c3 Qh4f6 Nd4c6 Re7e8 Qc3f3 g6g5 Re5e1 Qf6g7 h3h4 h7h6 Re1e5 g5xh4
 29/44	00:16	  19.618.317	1.223.926	+2,24	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 Rd2e2 Re7g7 a2a4 Qh6h4 a4a5 Qh4e7 a5xb6 a7xb6 Qf3xf4 Qe7a3 Kg1h2 Qa3d3 Re2c2 c7c5 d5xc6/ep Rg7e7 Rc2b2 Qd3xc4 Rb2xb6
 30/49-	00:17	  21.706.765	1.224.433	+2,08	Re4xd4 c5xd4
 30/49	00:18	  21.882.548	1.223.719	+2,19	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 Rd2e2 Qh6h4 Nd4c6 Re7g7 Nc6xa7 Qh4h5 Qf3xh5 g6xh5 Kg1f1 Re8a8 Na7b5 f4f3 g2xf3 Kg8f8 Re2e5 Ra8xa2 Re5xf5+ Kf8e8 Rf5xh5 Ra2c2 Nb5d4 Rc2xc4 Nd4f5 Rg7g6 Rh5xh7 Rg6f6 Rh7h8+ Rf6f8
 31/47	00:21	  26.203.612	1.217.809	+2,13	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 Rd2e2 Re8f8 Re2e1 a7a5 Nd4c6 Re7e8 Qf3e2 Qh6g7 Nc6e5 Re8e7 h3h4 g6g5 h4h5 Rf8f6 Ne5c6 Re7e8 Nc6d4 Rf6f8 Nd4b5 g5g4 Qe2e5 Qg7xe5 Re1xe5 Kg8g7 e6e7
 32/47	00:24	  30.150.443	1.215.841	+2,20	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 Rd2e2 Re8f8 Re2e1 a7a5 a2a4 g6g5 Re1e5 Qh6g7 Qf3e2 Qg7g6 f2f3 Re7e8 Kg1f1 h7h5 Qe2d2 Qg6g7 Qd2e1 Qg7g6 h3h4 Kg8h7 Nd4c6 g5g4 Qe1d2 g4xf3 g2xf3
 33/49	00:28	  34.975.119	1.216.483	+2,22	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 Rd2e2 Re8f8 Re2e1 a7a5 Nd4c6 Re7e8 Nc6e5 Re8e7 Qf3d3 Qh6g7 h3h4 g6g5 Qd3f3 Kg8h8 Ne5c6 Re7e8 h4h5 Kh8g8 Re1e5 Qg7f6 a2a4 Kg8h8 e6e7 Rf8f7 Re5e6 Qf6a1+ Kg1h2 Kh8g8 h5h6
 34/46	00:39	  46.936.421	1.204.919	+2,27	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 Rd2e2 Re8f8 Re2e1 g6g5 Re1e5 Qh6f6 Qf3e2 Qf6g6 Qe2d3 Qg6g7 Re5xf5 Re7e8 h3h4 Rf8xf5 Nd4xf5 Qg7a1+ Kg1h2 Qa1f6 Qd3e4 g5xh4 Qe4xf4 Kg8h8 Qf4e4 Re8f8 e6e7 Rf8e8 Qe4g4 Re8xe7 Nf5xe7 Qf6xe7 Kh2h3 Qe7a3+ Kh3xh4
 35/54	00:50	  59.941.396	1.196.650	+2,19	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 a2a4 a7a5 Qf3c3 Qh6h4 Qc3c1 Qh4g5 Kg1h2 Re8f8 Qc1d2 Qg5h6 Re2e1 Rf8e8 Re1e5 Qh6h4 Re5e2 f4f3 g2g3 Qh4e7 Re2e3 Qe7c5 Qd2d3 Qc5b4 Qd3c2 Qb4c5 Nd4c6
 36/48	00:56	  67.248.291	1.198.294	+2,13	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 Re7g7 Rd2e2 f6f5 a2a4 a7a5 Qf3c3 Qh6h4 Qc3c1 Qh4g5 Kg1h2 Re8f8 Qc1d2 Qg5h6 Re2e1 Rf8e8 Re1e5 Qh6h4 Re5e2 f4f3 g2g3 Qh4e7 Re2e3 Qe7c5 Qd2d3 Qc5b4 h3h4 Qb4xa4 h4h5 b6b5 Nd4xb5 f5f4 Re3xf3 f4xg3+ Rf3xg3 Qa4b4
 37/53+	01:11	  84.658.044	1.181.269	+2,29	Re4xd4
 37/64	01:34	 110.283.657	1.165.801	+2,31	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a5 Rd2e2 f6f5 Qf3c3 Re8f8 Nd4c6 Re7e8 Qc3e5 f4f3 Re2e3 f5f4 Re3xf3 Qh6g7 Qe5e4 Qg7a1+ Kg1h2 Qa1f6 Nc6e5 Qf6f5 Qe4d4 Qf5g5 Ne5d7 Rf8f5 Kh2g1 Re8e7 Qd4e4 Re7e8 a2a4 Re8e7 Kg1h2 Re7e8 Rf3c3 Qg5h4 Qe4f3 Qh4e7 c4c5
 38/61+	01:56	 134.747.241	1.158.308	+2,43	Re4xd4
 38/61	02:17	 158.790.238	1.154.250	+2,36	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a6 a2a4 a6a5 Rd2e2 f6f5 Re2c2 Qh6f8 Qf3xf4 Re7g7 h3h4 h7h5 Nd4b5 Qf8c5 Rc2c1 Qc5e7 Kg1h2 Qe7c5 g2g3 Re8e7 Kh2g2 c7c6
 39/52	02:47	 192.488.612	1.149.769	+2,49	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 a2a4 Re8f8 Nd4c6 Re7e8 a4a5 g6g5 Rd2e2 Rf8f6 a5a6 Rf6g6 Qf3d3 Qh6h5 Re2e5 g5g4 Re5xf5 Qh5h6 Nc6e5 g4xh3 Ne5xg6 h3xg2 Kg1xg2 h7xg6 Rf5f7 Qh6g5+ Kg2f3 Qg5h5+ Kf3xf4 Re8f8 Rf7xf8+ Kg8xf8 Qd3d4
 40/60	03:18	 227.298.483	1.145.530	+2,39	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 f6f5 a2a4 Re8f8 Nd4c6 Re7e8 a4a5 g6g5 Rd2e2 g5g4 h3xg4 Qh6g7 g4xf5 Rf8xf5 Nc6d4 Rf5f6 a5a6 Kg8h8 Re2e4 Re8f8 Kg1f1 Kh8g8 Kf1e2 Rf6g6 Ke2d3 c7c5 d5xc6/ep Qg7e7 Nd4b5 Rf8d8+ Kd3c3
 41/54+	04:14	 287.123.238	1.130.379	+2,57	Re4xd4
 41/57	05:05	 340.903.370	1.118.064	+2,46	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a5 Rd2e2 f6f5 Qf3c3 Re7g7 f2f3 Rg7e7 Nd4c6 Qh6g7 Qc3d2 g6g5 Qd2d3 Re8f8 Nc6xe7+ Qg7xe7 h3h4 h7h6 h4h5 a5a4 Kg1h2 Kg8g7 Kh2h1 a4a3 Kh1g1 Kg7g8 Kg1h2 Kg8g7 Kh2h1 Kg7g8 Kh1g1 Qe7c5+ Kg1f1 Qc5e7 Qd3d4 Qe7b4 e6e7 Rf8e8 Qd4f6 Qb4xc4
 42/59	05:33	 372.334.389	1.117.238	+2,52	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a5 Rd2e2 f6f5 Qf3c3 Qh6g5 Nd4f3 Qg5h6 Qc3e5 a5a4 Kg1h2 Qh6f8 Nf3d4 Re7g7 Qe5xf4 Qf8c5 Re2c2 Qc5a3 Qf4e5 Qa3e7 g2g3 h7h5 h3h4 Re8f8 Nd4c6 Qe7d6 Qe5xd6 c7xd6 Nc6d4 f5f4 Nd4b5 f4xg3+ f2xg3 g6g5 h4xg5 Rg7xg5 Nb5xd6
 43/55	05:58	 400.427.832	1.116.972	+2,51	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a5 Rd2e2 f6f5 Qf3c3 Qh6g5 Nd4f3 Qg5h6 Qc3e5 a5a4 Kg1h2 Qh6f8 Nf3d4 Re7g7 Qe5xf4 Qf8c5 Re2c2 Re8f8 h3h4 Qc5e7 Rc2e2 Qe7c5 Nd4c6 Rf8e8 Re2e5 h7h6 h4h5 g6xh5 Re5xf5 Qc5d6 f2f3 Qd6xf4+ Rf5xf4 Rg7g5 Rf4e4 Kg8f8 g2g3 Rg5f5 f3f4 b6b5
 44/64	08:00	 535.023.948	1.114.319	+2,55	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a5 Rd2e2 f6f5 Qf3c3 Qh6g5 Nd4f3 Qg5h6 Qc3e5 a5a4 Kg1h2 Qh6f8 Nf3d4 Re7g7 Qe5xf4 Qf8c5 Re2c2 Re8f8 h3h4 Qc5e7 Rc2e2 Qe7c5 Nd4c6 Rf8e8 Re2e5 b6b5 c4xb5 h7h5 Qf4d4 Qc5xb5 Re5e3 Qb5f1 Re3f3 Qf1e2 Qd4xa4 Re8f8 Qa4d4 Qe2xa2 Rf3f4 Qa2e2
 45/61	08:13	 549.668.526	1.113.591	+2,49	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a5 Rd2e2 f6f5 Qf3c3 Qh6g5 Nd4f3 Qg5h6 Qc3e5 a5a4 Kg1h2 Qh6f8 Nf3d4 Re7g7 Qe5xf4 Qf8c5 Re2c2 h7h6 Qf4e3 a4a3 Qe3e5 Qc5b4 f2f3 Re8a8 f3f4 Ra8f8 Nd4b5 g6g5 Nb5d4 g5xf4 Qe5xf4 Qb4d6 Qf4xd6 c7xd6 Nd4b5 f5f4 Nb5xd6 f4f3 Nd6e4 Rf8f4 g2xf3
 46/64	09:29	 632.902.411	1.111.220	+2,44	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a5 Rd2e2 f6f5 Qf3c3 Qh6g5 Nd4f3 Qg5h6 Qc3e5 a5a4 Kg1h2 Qh6f8 Nf3d4 Re7g7 Qe5xf4 Qf8c5 Re2c2 Re8d8 Qf4e3 h7h6 Rc2c3 Rd8f8 Qe3e5 a4a3 f2f4 Qc5b4 Rc3c2 Rf8a8 Nd4c6 Qb4c5 Rc2c3 Kg8h7 Nc6d4 Qc5e7 Rc3b3 Ra8g8 Rb3b5 Rg8a8 Nd4c6 Qe7h4 g2g3 Qh4h5 Rb5b1 g6g5 Qe5xf5+ Qh5g6 Qf5xg6+ Kh7xg6
 47/66	09:58	 665.685.579	1.111.652	+2,49	Re4xd4 c5xd4 Nd2b3 d4d3 Nb3d4 d3d2 Re1d1 g7g6 Rd1xd2 a7a5 Rd2e2 f6f5 Qf3c3 Qh6g5 Nd4f3 Qg5h6 Qc3e5 a5a4 Kg1h2 Qh6f8 Nf3d4 Re7g7 Qe5xf4 Qf8c5 Re2c2 h7h6 Qf4e5 Re8f8 f2f4 Rf8e8 Rc2c3 Qc5b4 Rc3g3 Re8f8 a2a3 Qb4e7 Nd4c6 Qe7d6 h3h4 g6g5 Nc6d4 Qd6xe5 f4xe5 g5g4 d5d6 f5f4 Rg3d3 f4f3 g2xf3 g4xf3 Rd3xf3 Rf8xf3
I am finding a vibrant WCC with good opening novelties and interesting games. I am really enjoying it and I hope and desire that it will continue.

Regards from Spain.

Ajedrecista.
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Jouni
Posts: 3897
Joined: Wed Mar 08, 2006 8:15 pm
Full name: Jouni Uski

Re: Whose engine finds Rxd4 as quickly as Ding did?

Post by Jouni »

SF uses 20 ms: depth 12 seldepth 12 multipv 1 score cp 189 nodes 110071 nps 5503550 hashfull 1 tbhits 0 time 20 pv e4d4 c5d4

BTW is endposition
[fen]4qQ2/p3P3/1p2k1r1/6pp/2P5/6PP/P7/3R2K1 b - - 0 47[/fen]
mate in 22?
Jouni
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Ajedrecista
Posts: 2242
Joined: Wed Jul 13, 2011 9:04 pm
Location: Madrid, Spain.

Re: Whose engine finds Rxd4 as quickly as Ding did?

Post by Ajedrecista »

Hello Jouni:
Jouni wrote: ↑Thu Apr 13, 2023 8:19 pm SF uses 20 ms: depth 12 seldepth 12 multipv 1 score cp 189 nodes 110071 nps 5503550 hashfull 1 tbhits 0 time 20 pv e4d4 c5d4

BTW is endposition
[fen]4qQ2/p3P3/1p2k1r1/6pp/2P5/6PP/P7/3R2K1 b - - 0 47[/fen]
mate in 22?
https://analysis.sesse.net/ gives a checkmate in 20 moves:

[pgn][Event "FIDE World Championship 2023"]
[Site "Astana, Kazakhstan"]
[Date "2023.04.13"]
[Round "4.1"]
[White "Liren, Ding"]
[Black "Nepomniachtchi, Ian"]
[Result "1-0"]
[WhiteElo "2788"]
[BlackElo "2795"]
[TimeControl "40/7200:20/3600:900+30"]
[SetUp "1"]
[FEN "4qQ2/p3P3/1p2k1r1/6pp/2P5/6PP/P7/3R2K1 b - - 6 47"]

(47. ... Rg8 48. Rd8 Rxf8 49. exf8=Q Qxf8 50. Rxf8 h4 51. Ra8 hxg3 52. Rxa7 Ke5 53. Rb7 Kd4 54. Rxb6 Kxc4 55. Rg6 Kc5 56. Rxg5+ Kd6 57. h4 Ke7 58. Rxg3 Ke6 59. h5 Kf5 60. h6 Kf4 61. Kg2 Ke4 62. h7 Kf5 63. h8=Q Ke4 64. Rg5 Kd3 65. Rc5 Ke3 66. Rd5 Kf4 67. Qd4#) 1-0 (23,448,469,554 nodes, 56,683,313 nodes/sec, depth 68 ply (41 selective), 538,717,816 Syzygy hits. White mates in 20)

[Event "FIDE World Championship 2023"]
[Site "Astana, Kazakhstan"]
[Date "2023.04.13"]
[Round "4.1"]
[White "Liren, Ding"]
[Black "Nepomniachtchi, Ian"]
[Result "1-0"]
[WhiteElo "2788"]
[BlackElo "2795"]
[TimeControl "40/7200:20/3600:900+30"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Bxc3
6. bxc3 d6 7. e4 O-O 8. Be2 Nh5 9. d4 Nf4 10. Bxf4 exf4
11. O-O Qf6 12. Rfe1 Re8 13. Bd3 Bg4 14. Nd2 Na5 15. c5 dxc5
16. e5 Qh6 17. d5 Rad8 18. c4 b6 19. h3 Bh5 20. Be4 Re7
21. Qc3 Rde8 22. Bf3 Nb7 23. Re2 f6 24. e6 Nd6 25. Rae1 Nf5
26. Bxh5 Qxh5 27. Re4 Qh6 28. Qf3 Nd4 29. Rxd4 cxd4 30. Nb3 g5
31. Nxd4 Qg6 32. g4 fxg3 33. fxg3 h5 34. Nf5 Rh7 35. Qe4 Kh8
36. e7 Qf7 37. d6 cxd6 38. Nxd6 Qg8 39. Nxe8 Qxe8 40. Qe6 Kg7
41. Rf1 Rh6 42. Rd1 f5 43. Qe5+ Kf7 44. Qxf5+ Rf6 45. Qh7+ Ke6
46. Qg7 Rg6 47. Qf8 1-0[/pgn]

I want to add a remark: Ding places his knights one faced to the other (like me) while Nepomniachtchi place them looking to his right:

https://youtu.be/r5ve1MQJP0I?t=1960s

Regards from Spain.

Ajedrecista.
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DmitriyFrosty
Posts: 58
Joined: Mon Mar 27, 2023 8:29 pm
Full name: Dmitry Frosty

Re: Whose engine finds Rxd4 as quickly as Ding did?

Post by DmitriyFrosty »

My Leela on cpu (in Droidfish) immediately finds Rxd4
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DmitriyFrosty
Posts: 58
Joined: Mon Mar 27, 2023 8:29 pm
Full name: Dmitry Frosty

Re: Whose engine finds Rxd4 as quickly as Ding did?

Post by DmitriyFrosty »

I should note that Ian has also opportunity to go d3 instead of g5 and transfer rook on g7. Maybe there was be chances.
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