Qg6 should be found at depth 35 by Stockfish-dev, if you use the default setting: Hash = 16 MB, no endgame tables, etcMax wrote: ↑Wed Jul 17, 2019 4:59 pmPerhaps multicore luck? The same Stockfish 140719 64 BMI2 needs here with 1 thread depth 37 and about 4 minutes to find Qg6.Spliffjiffer wrote: ↑Wed Jul 17, 2019 4:35 pm i dont wanna talk away the problems SF has when it comes to sacrifices in terms of make kings naked but "my" latest SF ("Fix bench", Sun Jul 14 15:21:08 2019 +0200 by MC) finds Qg6 in about 13 seconds (tried 2 times) on an old APU 7870k-4 cores-CPU while SF10 needs much longer in this particular case...maybe just a compiler issue though or even pure luck ?
Code: Select all
26 [+3.22] 20.... Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8 23.Rd1 Qg6 24.Rxd8+ Rxd8 25.Bf5 Qf6 26.Qc3 Bxe3 27.Qxe3 Nb7 28.Rh1 Nd6 29.Rh7 Kb7 30.a4 Nxf5 31.exf5 Rd7 32.Qb3+ Kc7 33.Qe6 Qxe6 34.fxe6 Re7 35.b4 Kd6 (5.92) 27 [+3.31] 20.... Bxe4+ 21.dxe4 (7.02) 27 [+3.43] 20.... Bxe4+ (12.59) 27 [+3.75] 20.... Bxe4+ 21.dxe4 (13.96) 27 [+3.46] 20.... Bxe4+ (16.12) 27 [+3.58] 20.... Bxe4+ 21.dxe4 Bxe3 22.Bxg4+ Kb8 23.Qxe3 Qd4 24.Qg5 Qd6 25.Rad1 Qf6 26.Rxd8+ Rxd8 27.Qe3 Nb7 28.Rh1 Nd6 29.Rd1 Nb7 30.Rxd8+ Qxd8 31.Qc3 Qd6 32.b4 c5 33.a4 Ka8 34.b5 Qd4 35.Qxd4 cxd4 (16.54) 28 [+3.49] 20.... Bxe4+ (17.42) 28 [+3.68] 20.... Bxe4+ 21.dxe4 (19.13) 28 [+3.46] 20.... Bxe4+ (24.02) 28 [+3.45] 20.... Bxe4+ 21.dxe4 Nb7 22.Bxg4+ Kc7 23.Bg5 Rdf8 24.Bf5 Qd4 25.Rd1 Qxb2 26.Rd7+ Kb8 27.Qb1 Qb5 28.Qxb5 cxb5 29.f4 Rc8 30.fxe5 Bb6 31.Rd2 Nc5 32.Bxc8 Kxc8 33.Rdf2 Nxe4 34.Rf8+ Rxf8 35.Rxf8+ Kd7 36.Rf7+ Ke6 37.Rxg7 Kxe5 38.Bf4+ Kf6 (26.64) 29 [+3.54] 20.... Bxe4+ 21.dxe4 (30.44) 29 [+3.82] 20.... Bxe4+ 21.dxe4 Nb7 22.Bxg4+ Kb8 23.Rd1 Qe7 24.Rxd8+ Rxd8 25.Rh1 Rf8 26.Rh7 Bb6 27.Qc3 Qf6 28.Bf5 Bxe3 29.Qxe3 c5 30.Qc3 Rd8 31.Rh1 a6 32.b4 Qd6 33.Rb1 Ka7 34.b5 axb5 35.Rxb5 Qa6 36.Rb1 g6 37.Bh3 (39.56) 30 [+3.72] 20.... Bxe4+ (47.57) 30 [+3.91] 20.... Bxe4+ 21.dxe4 (49.23) 30 [+3.77] 20.... Bxe4+ (50.61) 30 [+3.92] 20.... Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8 23.Rd1 Qg6 24.Rxd8+ Rxd8 25.Bf5 Qf6 26.Qc3 Nb7 27.Rh1 Rf8 28.Rh5 Bxe3 29.Qxe3 Ka8 30.Rh7 Kb8 31.Qc3 c5 32.Rh5 a5 33.Rh7 Ka7 34.a3 Rd8 35.b4 axb4 (54.33) 31 [+3.83] 20.... Bxe4+ (55.84) 31 [+3.82] 20.... Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8 23.Rd1 Qg6 24.Rxd8+ Rxd8 25.Bf5 Qf7 26.Qc3 Bxe3 27.Qxe3 Nb7 28.Qc3 Qf6 29.Rh1 Nd6 30.Qxc6 Nxf5 31.Qb5+ Kc7 32.Qc5+ Kb7 33.exf5 Qxf5 34.Qb5+ Kc7 35.Rh4 Qd7 36.Qxe5+ Kb7 37.Rb4+ Ka8 38.Rc4 Qb7+ 39.f3 Qd5 40.Qe4 Qxe4 41.fxe4 (58.81) 32 [+3.72] 20.... Bxe4+ (63.63) 32 [+3.91] 20.... Bxe4+ 21.dxe4 (68.98) 32 [+3.88] 20.... Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8 23.Rd1 Qg6 24.Rxd8+ Rxd8 25.Bf5 Qf7 26.Qc3 Bxe3 27.Qxe3 Nb7 28.Qc3 Qf6 29.Rh1 c5 30.Rh7 Rf8 31.Qb3 a6 32.a3 Rd8 33.Qc3 Rf8 34.b4 cxb4 35.Qxb4 Ka8 36.Qc3 Kb8 37.a4 Nd6 38.Rh5 Nxf5 39.Qb4+ Ka7 40.Qc5+ Kb7 41.Rxf5 (83.84) 33 [+3.78] 20.... Bxe4+ (87.45) 33 [+3.75] 20.... Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8 23.Rd1 Qg6 24.Rxd8+ Rxd8 25.Bf5 Qd6 26.Rh1 Nc4 27.Bg5 Rg8 28.Qe2 Qc5 29.b4 Qb5 30.a4 Ne3+ 31.Qxe3 Bxe3 32.axb5 Bxg5 33.Be6 Re8 34.Bd7 Rd8 35.bxc6 a5 36.bxa5 Kc7 37.Rd1 Rb8 38.Rd5 Bf6 39.Kg1 Rh8 40.Rb5 g6 41.c3 Ra8 (88.54) 34 [+3.65] 20.... Bxe4+ (89.67) 34 [+3.84] 20.... Bxe4+ 21.dxe4 (92.19) 34 [+3.70] 20.... Bxe4+ (110.93) 34 [+3.70] 20.... Bxe4+ 21.dxe4 Nb7 22.Bxg4+ Kc7 23.Rd1 Qe7 24.Rxd8 Rxd8 25.Rh1 Bxe3 26.Qxe3 a5 27.Rh5 Rd4 28.Bf5 Rd8 29.Rh7 Rd6 30.a3 c5 31.Qc3 Rh6 32.Rxh6 gxh6 33.Qb3 Nd8 34.Qb5 Nb7 35.c3 Qd6 36.Qe8 Kb6 37.Bg4 Qc7 38.Be2 Nd6 (111.73) 35 [+3.80] 20.... Bxe4+ 21.dxe4 (131.14) 35 [+3.97] 20.... Bxe4+ 21.dxe4 Nb7 22.Bxg4+ Kb8 23.Rd1 Qe7 24.Rxd8+ Rxd8 25.Rh1 Rf8 26.Rh7 Bb6 27.Qc3 Qf6 28.Bf5 Bxe3 29.Qxe3 Nd6 30.Rh5 Qe7 31.Bg4 Re8 32.Rh7 Qf6 33.Rh1 Nb7 34.Rh5 Qg6 35.Qf3 a5 36.Bd7 Rd8 37.Bf5 Qf6 38.Qe3 c5 39.Qb3 Kc7 40.Bg4 Rf8 41.f4 exf4 42.Rf5 (182.27) 36 [+3.97] 20.... Bxe4+ 21.dxe4 Nb7 22.Bxg4+ Kb8 23.Rd1 Qe7 24.Rxd8+ Rxd8 25.Rh1 Rf8 26.Rh7 Bb6 27.Qc3 Qf6 28.Bf5 Bxe3 29.Qxe3 Nd6 30.Rh5 Qe7 31.Bg4 Re8 32.Rh7 Qf6 33.Rh1 Nb7 34.Bf5 Nd6 35.Bd7 Rf8 36.Rh5 Qf7 37.Bg4 Qg6 38.Bf3 Re8 39.a4 Qe6 40.Qc3 Kc7 41.Qc5 Kb8 42.Qxc6 Rc8 43.Qa6 (202.20) 37 [+3.88] 20.... Bxe4+ (211.94) 37 [+3.78] 20.... Qg6 (242.36) 37 [-3.35] 20.... Qg6 21.Rh1 Rxh1 22.Qxh1 Bxe3 23.Qh4 Nc4 24.Re1 Bd2 25.Nxd2 Nxd2 26.Kg1 Rf8 27.Rd1 Nf3+ 28.Bxf3 gxf3 29.Re1 Qf6 30.Re3 Bd7 31.Qxf6 gxf6 32.Rxf3 Kc7 33.Re3 Be6 (246.71) 38 [-3.45] 20.... Qg6 (255.49) 38 [-4.96] 20.... Qg6 21.Rh1 Rxh1 22.Qxh1 Bxe3 23.Qh4 Nc4 24.Kg1 Bb6 25.a4 Bxe4 26.dxe4 Rf8 27.Rf1 Qxe4 28.Qxg4+ Qxg4 29.Bxg4+ Kc7 30.a5 Bc5 31.b4 Bxb4 32.Be6 Nd6 33.a6 Bc5 34.Kg2 Kb6 35.f3 Nf5 36.Rb1+ Kxa6 37.g4 Ne3+ 38.Kg3 Bd4 39.Kf2 Rh8 40.Kg3 (288.38) 39 [-4.96] 20.... Qg6 21.Rh1 Rxh1 22.Qxh1 Bxe3 23.Qh4 Nc4 24.Kg1 Bb6 25.a4 Bxe4 26.dxe4 Rf8 27.Rf1 Qxe4 28.Qxg4+ Qxg4 29.Bxg4+ Kc7 30.a5 Bc5 31.b4 Bxb4 32.Be6 Nd6 33.a6 Bc5 34.Kg2 Kb6 35.f3 Nf5 36.Rb1+ Kxa6 37.g4 Ne3+ 38.Kg3 Bd4 39.Kf2 Rh8 40.Kg3 (292.99) [-4.96 ] Depth: 39/59 Nodes: 448540K (1531 kn/s) Time: 292.99 s NPS: 1530918 Hash: 100% Load: ---- TB hits: 1248 Current: Qg6 (1/46)
One more issue with king safety/attack for Stockfish
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zullil
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Re: One more issue with king safety/attack for Stockfish
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Spliffjiffer
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Re: One more issue with king safety/attack for Stockfish
yes, when i use only 1 core (but 1024 hash as before) SF needs about 2,5 minutes to find Qg6 at depth 35 as you assumed !
but if i switch back to 4 cores (hash cleaned, Arena-GUI restarted) it always takes only 10 to 20 seconds to find Qg6...quite strange...i used SF BYO (Stockfish Build on Your Own) to compile the fish maybe some "tweak" inside the compile-action involved to get the right move that quickly compared to the deterministic result i get, as you, with only 1 core !??
but if i switch back to 4 cores (hash cleaned, Arena-GUI restarted) it always takes only 10 to 20 seconds to find Qg6...quite strange...i used SF BYO (Stockfish Build on Your Own) to compile the fish maybe some "tweak" inside the compile-action involved to get the right move that quickly compared to the deterministic result i get, as you, with only 1 core !??
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Max
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Re: One more issue with king safety/attack for Stockfish
You are absolute right, my run was with tablebase and 512MB hash.
Hope we're not just the biological boot loader for digital super intelligence. Unfortunately, that is increasingly probable - Elon Musk
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Paloma
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Re: One more issue with king safety/attack for Stockfish
One question: when i build a new comp, what RAM size should i choose?
I see you set Hash to 16MB, my current Ram size is 16 MB so i can use 8MB Hash.
When i buy Ryzen 3900X as CPU i would like get 32MB RAM or should i choose 64 MB?
Mostly i analysing Test-Pos more hours, so i can choose 48MB Hash when i have 64 MB RAM.
What do you recommend? 64 or 32?
Edit:
zullil: I have 64 GB (not MB
). I often use 32 GB hash for long searches.of course i meant GB. Your 16 MB has confused me.
Last edited by Paloma on Thu Jul 18, 2019 12:43 am, edited 2 times in total.
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zullil
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Re: One more issue with king safety/attack for Stockfish
I have 64 GB (not MBPaloma wrote: ↑Thu Jul 18, 2019 12:15 amOne question: when i build a new comp, what RAM size should i choose?
I see you set Hash to 16MB, my current Ram size is 16 MB so i can use 8MB Hash.
When i buy Ryzen 3900X as CPU i would like get 32MB RAM or should i choose 64 MB?
Mostly i analysing Test-Pos more hours, so i can choose 48MB Hash when i have 64 MB RAM.
What do you recommend? 64 or 32?
). I often use 32 GB hash for long searches.I used 16 MB only because that is the Stockfish default, and I wanted to use default settings.
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Eelco de Groot
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Re: One more issue with king safety/attack for Stockfish
If you make very small changes, with one thread the time to solution greatly varies so mainly search luck seems important. With many threads the chance of success is of course higher so SF not finding it quickly with one thread maybe does not matter very much. I could not find something easily repaired but did not even look at the PV I must say. Kaissa has a bit more search luck anyway and I helped a bit with some scoutsearching 
71 million nodes needed. No compare to the fast programs mentioned I suppose.
After switching to 20.dxe4 instead of 20. Nxe4, the program has to find the answer 20. dxe4 Qg6 again but this time maybe, barely, a draw. Not sure though, it is not 0.00 and almost -0.8 at times. 20. Rh1 (from the game) also slightly negative so that move is not chosen.
[d]2kr3r/p5p1/2pq4/n1b1pb2/4p1p1/2NPB1P1/PPP1BPK1/R3QR2 w - -
Engine: Kaissa IV NoContempt (Version 154B, 512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
71 million nodes needed. No compare to the fast programs mentioned I suppose.After switching to 20.dxe4 instead of 20. Nxe4, the program has to find the answer 20. dxe4 Qg6 again but this time maybe, barely, a draw. Not sure though, it is not 0.00 and almost -0.8 at times. 20. Rh1 (from the game) also slightly negative so that move is not chosen.
[d]2kr3r/p5p1/2pq4/n1b1pb2/4p1p1/2NPB1P1/PPP1BPK1/R3QR2 w - -
Engine: Kaissa IV NoContempt (Version 154B, 512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
Code: Select all
23/34 0:01 +3.60 20.Nxe4 Bxe4+ 21.dxe4 Bxe3 22.Bxg4+ Kb7
23.Qxe3 Qg6 24.Qf3 Rd4 25.Bf5 Qh5
26.Qxh5 Rxh5 27.Rfd1 Nc4 28.Rxd4 exd4
29.Rd1 c5 30.Be6 Ne5 31.f4 Nc6
32.Bd5 Kb6 33.e5 (2.994.240) 1763
24/39 0:02 +3.82 20.Nxe4 Bxe4+ 21.dxe4 Bxe3 22.Bxg4+ Kb7
23.Qxe3 Qg6 24.Qf3 c5 25.Rad1 Nc6
26.c3 Rxd1 27.Rxd1 Kb6 28.Qe2 a6
29.Bh3 Qh6 30.Rh1 Qf6 31.Bg4 Rf8
32.Rh5 Ne7 33.f3 (3.612.328) 1769
25/39 0:03 +3.96++ 20.Nxe4 (5.358.083) 1777
25/40 0:03 +3.90 20.Nxe4 Bxe4+ 21.dxe4 Bxe3 22.Bxg4+ Kb8
23.Qxe3 Qg6 24.Bf5 Qf6 25.Rad1 Nb7
26.Rxd8+ Rxd8 27.Rh1 Nd6 28.Bg4 Qg6
29.Bf3 Qf6 30.Rh5 Re8 31.Qc5 Nb5
32.c3 Qd6 33.Qxd6+ (5.560.104) 1777
26/42 0:03 +3.80-- 20.Nxe4 Bxe4+ (6.942.926) 1765
26/42 0:04 +3.71-- 20.Nxe4 Bxe4+ (7.395.413) 1764
26/42 0:04 +3.80++ 20.Nxe4 (8.230.612) 1761
26/42 0:05 +3.85 20.Nxe4 Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8
23.Qc3 Nb7 24.Rad1 Bd4 25.Qb3 Qg6
26.Bf5 Qf6 27.Rh1 c5 28.a4 Bxe3
29.Rxd8+ Rxd8 30.Qxe3 Rf8 31.Bg4 c4
32.Rd1 Qg6 33.f3 (8.813.450) 1754
27/36 0:05 +3.76-- 20.Nxe4 Bxe4+ (9.365.136) 1755
27/36 0:05 +3.85++ 20.Nxe4 (10.386.190) 1751
27/39 0:06 +4.00++ 20.Nxe4 (11.016.993) 1754
27/44 0:07 +4.19++ 20.Nxe4 (12.370.487) 1751
27/49 0:08 +4.00 20.Nxe4 Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8
23.Qc3 Nb7 24.Rad1 Bd4 25.Qxd4 exd4
26.Bf4 c5 27.Bxd6+ Rxd6 28.Rh1 Re8
29.Rh7 Rxe4 30.Rxg7 Re8 31.Rh1 c4
32.b3 cxb3 33.cxb3 (14.653.490) 1747
28/38 0:08 +3.90-- 20.Nxe4 Bxe4+ (15.246.219) 1747
28/38 0:09 +3.81-- 20.Nxe4 Bxe4+ (15.772.920) 1748
28/44 0:10 +3.90++ 20.Nxe4 (17.699.530) 1750
28/44 0:10 +4.10++ 20.Nxe4 (18.805.684) 1752
28/46 0:11 +4.15 20.Nxe4 Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8
23.Qc3 Nb7 24.Rh1 Bxe3 25.Qxe3 Qg6
26.Bf5 Qf7 27.Rad1 Rxh1 28.Rxd8+ Nxd8
29.Kxh1 Nb7 30.Qc3 Nd6 31.Qxe5 Qf6
32.f4 Kb7 33.Bg4 (19.599.021) 1751
29/40 0:11 +4.05-- 20.Nxe4 Bxe4+ (20.579.970) 1751
29/44 0:13 +4.15++ 20.Nxe4 (23.224.608) 1751
29/46 0:14 +3.96-- 20.Nxe4 Bxe4+ (26.155.839) 1751
29/49 0:18 +4.12++ 20.Nxe4 (32.825.500) 1748
29/49 0:20 +4.29 20.Nxe4 Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8
23.Qc3 Nb7 24.Rh1 Bd4 25.Qb3 Bxe3
26.Qxe3 Qg6 27.Bf5 Qf6 28.Rxh8 Rxh8
29.Rd1 Rd8 30.Rh1 Nd6 31.Rh5 Nb5
32.Bg4 Qg6 33.Qg5 (35.259.233) 1747
30/45 0:23 +4.38++ 20.Nxe4 (41.312.414) 1748
30/48 0:24 +4.19-- 20.Nxe4 Bxe4+ (43.647.669) 1748
30/48 0:25 +4.05-- 20.Nxe4 Bxe4+ (44.105.712) 1748
30/48 0:26 +4.19++ 20.Nxe4 (45.833.518) 1746
30/49 0:27 +4.05 20.Nxe4 Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8
23.Qc3 Nb7 24.Rh1 Bd4 25.Bxd4 exd4
26.Qc4 Qc5 27.Qxc5 Nxc5 28.Rxh8 Rxh8
29.Rd1 Rd8 30.e5 Kc7 31.b4 Ne4 32.a3 Nc3
33.Rh1 (47.930.770) 1742
31/44 0:29 +4.15++ 20.Nxe4 (50.910.115) 1741
31/47 0:32 +4.24++ 20.Nxe4 (55.898.189) 1738
31/50 0:34 +4.38++ 20.Nxe4 (59.290.220) 1740
31/51 0:35 +4.24 20.Nxe4 Bxe4+ 21.dxe4 Bb6 22.Bxg4+ Kb8
23.Qc3 Nb7 24.Rh1 Bd4 25.Bxd4 exd4
26.Qc4 Rhe8 27.Rae1 Qg6 28.Bh5 Qe6
29.Qxe6 Rxe6 30.e5 Kc7 31.f4 Re7
32.Bf3 Nc5 33.b4 (61.614.825) 1738
32/52 0:38 +4.15-- 20.Nxe4 Bxe4+ (66.394.016) 1733
32/52 0:41 +4.06-- 20.Nxe4 Qg6 (71.224.182) 1734
32/52 0:41 +3.92-- 20.Nxe4 Qg6 (72.300.311) 1734
32/52 0:44 +3.72-- 20.Nxe4 Qg6 (77.912.569) 1735
32/52 0:47 +3.45-- 20.Nxe4 Qg6 (82.772.772) 1736
32/52 0:48 +3.09-- 20.Nxe4 Qg6 (84.269.283) 1736
32/52 0:50 +2.62-- 20.Nxe4 Qg6 (88.190.059) 1735
32/52 0:54 +2.01-- 20.Nxe4 Qg6 (94.491.129) 1736
32/52 0:59 +1.76 20.dxe4 Bxe3 21.Ba6+ Kb8 22.Qxe3 Bc8
23.Rad1 Qf6 24.Rxd8 Rxd8 25.Be2 Rh8
26.Rh1 Rxh1 27.Kxh1 Qh6+ 28.Qxh6 gxh6
29.Kg2 Nb7 30.Nd1 Kc7 31.Ne3 h5
32.b4 Nd8 33.f3 (102.949.164) 1735
33/47 1:03 +1.86++ 20.dxe4 (109.671.184) 1737
33/49 1:05 +1.92 20.dxe4 Bxe3 21.Ba6+ Kb8 22.Qxe3 Bc8
23.Rfd1 Qf6 24.Rxd8 Rxd8 25.Be2 Rh8
26.Rh1 Rxh1 27.Kxh1 Qh6+ 28.Kg2 Qxe3
29.fxe3 Nb7 30.Nd1 c5 31.Nf2 Nd6
32.Bxg4 Bb7 33.Bf3 (113.650.487) 1739
34/52 1:09 +1.83-- 20.dxe4 Bxe3 (120.557.213) 1738
34/55 1:12 +1.74-- 20.dxe4 Bxe3 (126.260.204) 1739
34/55 1:16 +1.77 20.dxe4 Bxe3 21.Ba6+ Kb8 22.Qxe3 Bc8
23.Rfd1 Qf6 24.Rxd8 Rxd8 25.Be2 Rh8
26.Rh1 Rxh1 27.Kxh1 Qh6+ 28.Kg2 Qxe3
29.fxe3 Nb7 30.Nd1 c5 31.Nf2 Nd6
32.Bxg4 Bb7 33.Nd3 (133.295.788) 1738
35/52 1:22 +1.77 20.dxe4 Bxe3 21.Ba6+ Kb8 22.Qxe3 Bc8
23.Rfd1 Qf6 24.Rxd8 Rxd8 25.Be2 Rh8
26.Rh1 Rxh1 27.Kxh1 Qh6+ 28.Kg2 Qxe3
29.fxe3 Nb7 30.Nd1 c5 31.Nf2 Nd6
32.Bxg4 Bb7 33.Kf3 (143.825.122) 1739
36/42 1:26 +1.87++ 20.dxe4 (151.464.019) 1742
36/56 1:30 +1.72 20.dxe4 Bxe3 21.Ba6+ Kb8 22.Qxe3 Bc8
23.Rfd1 Qf6 24.Rxd8 Rxd8 25.Be2 Rh8
26.Rh1 Rxh1 27.Kxh1 Qh6+ 28.Kg2 Qxe3
29.fxe3 Nb7 30.Nd1 c5 31.Nf2 Nd6
32.Bxg4 Bb7 33.Kf3 (158.650.941) 1744
37/60 1:39 +1.81++ 20.dxe4 (173.028.854) 1746
37/60 1:47 +1.91++ 20.dxe4 (188.645.570) 1747
37/60 1:58 +2.05++ 20.dxe4 (207.174.635) 1751
37/60 2:00 +1.83 20.dxe4 Bxe3 21.Ba6+ Kb8 22.Qxe3 Bc8
23.Rad1 Qf6 24.Rxd8 Rxd8 25.Be2 Rh8
26.Rh1 Rxh1 27.Kxh1 Qh6+ 28.Kg2 Qxe3
29.fxe3 Kc7 30.Nd1 c5 31.Nf2 Kd6
32.b3 Nc6 33.a3 (211.584.811) 1751
38/49 2:19 +1.92++ 20.dxe4 (243.975.695) 1753
38/54 2:24 +2.02++ 20.dxe4 (253.190.505) 1753
38/56 2:28 +2.16++ 20.dxe4 (260.361.781) 1754
38/56 2:31 +2.15 20.dxe4 Bxe3 21.Ba6+ Kb8 22.Qxe3 Bc8
23.Rad1 Qf6 24.Rxd8 Rxd8 25.Be2 Rh8
26.Nd1 Nb7 27.Rh1 Rxh1 28.Kxh1 Qd6
29.Kg1 Nc5 30.Qg5 Nxe4 31.Qxg7 Qe6
32.Qf8 c5 33.Ne3 (266.318.670) 1756
39/55 2:45 +2.25++ 20.dxe4 (290.103.003) 1757
39/71 2:59 +2.06-- 20.dxe4 Bxe3 (314.975.546) 1757
39/71 3:26 +2.20++ 20.dxe4 (363.130.189) 1761
39/71 3:38 +2.20 20.dxe4 Bxe3 21.Ba6+ Kb8 22.Qxe3 Bd7
23.Na4 Qh6 24.Qxh6 Rxh6 25.Rh1 Bc8
26.Rxh6 gxh6 27.Be2 Rd4 28.Nc3 Nb7
29.Rh1 Kc7 30.Kf1 Nc5 31.Rh5 Rd2
32.Rxe5 Kd6 33.Rh5 (385.960.014) 1764
40/59 4:01 +2.25 20.dxe4 Bxe3 21.Ba6+ Kb8 22.Qxe3 Bc8
23.Rad1 Qf6 24.Rxd8 Rxd8 25.Be2 Nb7
26.Rh1 Rd4 27.Rh8 Rd8 28.Rxd8 Qxd8
29.a3 Be6 30.Na4 Qd4 31.Qxd4 exd4
32.f4 c5 33.b3 (427.536.216) 1768
41/56 4:14 +2.16-- 20.dxe4 Bxe3 (449.310.117) 1768
41/56 4:23 +2.07-- 20.dxe4 Bxe3 (465.737.750) 1768
41/56 4:51 +1.92-- 20.dxe4 Qg6 (516.195.418) 1771
41/56 5:05 +1.73-- 20.dxe4 Qg6 (541.632.537) 1770
41/56 5:26 +1.46-- 20.dxe4 Qg6 (577.872.053) 1771
41/56 5:52 +1.10-- 20.dxe4 Qg6 (624.998.076) 1770
41/56 6:28 +0.63-- 20.dxe4 Qg6 (686.900.790) 1770
41/62 8:04 +0.22 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Rac1 Bd4
26.Ne4 Bxb2 27.Rc2 Bd4 28.Bd2 Bb6
29.Bxa5 Bxa5 30.Rxc6+ Kb8 31.Rg6 Rd4
32.Rb1+ Bb6 33.Re1 (857.052.471) 1770
42/60 9:38 +0.12-- 20.Bg5 exd3 (1.023.653.554) 1768
42/60 10:56 +0.03-- 20.Bg5 exd3 (1.161.216.799) 1768
42/60 12:41 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Ne4 Bd4
26.Rac1 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rfb1 Kd7 30.Rb4 Rc4 31.Rxc4 Nxc4
32.Rb4 Nd6 33.Rxg4 (1.345.319.488) 1766
43/59 14:02 +0.09++ 20.Bg5 (1.488.298.765) 1766
43/65 17:30 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Ne4 Bd4
26.Rac1 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rc1 Rh5 30.Be7 Kd7 31.Bc5 Ke6
32.Bxa7 Ra4 33.Rc5 (1.843.038.491) 1754
44/65 19:40 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Ne4 Bd4
26.Rac1 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rc1 Rh5 30.Be7 Kd7 31.Bc5 Ke6
32.Bxa7 Ra4 33.Rc5 (2.068.512.463) 1752
45/67 21:38 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Ne4 Bd4
26.Rac1 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rc1 Rh5 30.Be7 Kd7 31.Bc5 Ke6
32.Bxa7 Ra4 33.Rc5 (2.272.066.741) 1750
46/64 25:01 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Ne4 Bd4
26.Rac1 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rc1 Rh5 30.Be7 Kd7 31.Bc5 Ke6
32.Bxa7 Ra4 33.Rc5 (2.628.349.687) 1751
47/72 30:50 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Ne4 Bd4
26.Rac1 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rc1 Rh5 30.Be7 Kd7 31.Bc5 Ke6
32.Bxa7 Ra4 33.Rbc2 (3.241.659.546) 1751
48/70 36:05 +0.08++ 20.Bg5 (3.796.061.600) 1753
48/70 38:17 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Rae1 Nc4
26.Ne4 Bb6 27.Rc1 Nd6 28.Rxc6+ Kd7
29.Nc5+ Kxc6 30.Nxd3 Bd4 31.Be3 Bxe3
32.fxe3 Kd5 33.Nf2 (4.025.435.742) 1752
49/69 44:27 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Ne4 Bd4
26.Rac1 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rc1 Rh5 30.Be7 Kd7 31.Bc5 Ke6
32.Bxa7 Ra4 33.Rbc2 (4.680.323.965) 1754
50/82 52:03 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Rac1 Bd4
26.Ne4 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rc1 Rh5 30.Be7 Kd7 31.Bc5 Ke6
32.Bxa7 Ra4 33.Rbc2 (5.486.480.419) 1756
51/67 61:46 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Ne4 Bd4
26.Rac1 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rc1 Rh5 30.Be7 Kd7 31.Bc5 Ke6
32.Bxa7 Ra4 33.Rbc2 (6.527.798.823) 1761
52/75 75:12 0.00 20.Bg5 exd3 21.Bxd3 Bxd3 22.cxd3 Qxd3
23.Qe4 Rd4 24.Qxd3 Rxd3 25.Ne4 Bd4
26.Rac1 Bxb2 27.Rc2 Rd4 28.Rxb2 Rxe4
29.Rc1 Rh5 30.Be7 Kd7 31.Bc5 Ke6
32.Bxa7 Ra4 33.Rbc2 (7.981.722.898) 1768
53/80 101:52 0.00 20.Bg5 exd3 21.Bxd3 Rdf8 22.Qe2 Qe6
23.Rae1 Bxd3 24.cxd3 Qf5 25.Ne4 Nb7
26.Rh1 Qf3+ 27.Qxf3 gxf3+ 28.Kg1 Rxh1+
29.Kxh1 Bd4 30.b4 a5 31.bxa5 Nc5
32.Kg1 Nxd3 33.Rd1 (10.853.980.857) 1775
54/79 156:48 0.00 20.Bg5 exd3 21.Bxd3 Rdf8 22.Qe2 Qe6
23.Rae1 Bxd3 24.cxd3 Qf5 25.Ne4 Nb7
26.Rh1 Qf3+ 27.Qxf3 gxf3+ 28.Kg1 Rxh1+
29.Kxh1 Bd4 30.b4 a5 31.bxa5 Nc5
32.Kg1 Nxd3 33.Rd1 (16.654.021.967) 1770
55/76 197:58 0.00 20.Bg5 exd3 21.Bxd3 Rdf8 22.Qe2 Qe6
23.Rae1 Bxd3 24.cxd3 Qf5 25.Ne4 Nb7
26.Rh1 Qf3+ 27.Qxf3 gxf3+ 28.Kg1 Rxh1+
29.Kxh1 Bd4 30.b4 a5 31.bxa5 Nc5
32.Kg1 Nxd3 33.Rd1 (21.017.239.226) 1769
56/83 252:46 0.00 20.Bg5 exd3 21.Bxd3 Rdf8 22.Qe2 Qe6
23.Rae1 Bxd3 24.cxd3 Qf5 25.Ne4 Bb4
26.Rc1 Qf3+ 27.Qxf3 gxf3+ 28.Kg1 Rh5
29.Bh4 Rfh8 30.Ng5 Bd2 31.Nxf3 Bxc1
32.Rxc1 Rf8 33.g4 (26.859.679.253) 1770
57/82 301:27 0.00 20.Bg5 exd3 21.Bxd3 Rdf8 22.Qe2 Qe6
23.Rae1 Bxd3 24.cxd3 Qf5 25.Ne4 Nb7
26.Rh1 Qf3+ 27.Qxf3 gxf3+ 28.Kg1 Rxh1+
29.Kxh1 Bd4 30.Be3 Bxb2 31.Bxa7 Kc7
32.Ng5 Ra8 33.Be3 (31.996.526.797) 1769
58/77 361:26 0.00 20.Bg5 exd3 21.Bxd3 Rdf8 22.Qe2 Qe6
23.Rae1 Bxd3 24.cxd3 Qf5 25.Ne4 Nb7
26.Rh1 Qf3+ 27.Qxf3 gxf3+ 28.Kg1 Rxh1+
29.Kxh1 Bd4 30.Be3 Bxb2 31.Bxa7 Kc7
32.Ng5 Ra8 33.Be3 (38.389.950.322) 1770
59/77 545:03 0.00 20.Bg5 exd3 21.Bxd3 Rdf8 22.Qe2 Qe6
23.Rae1 Bxd3 24.cxd3 Qf5 25.Ne4 Nb7
26.Rh1 Qf3+ 27.Qxf3 gxf3+ 28.Kg1 Rxh1+
29.Kxh1 Bd4 30.Be3 Bxb2 31.Bxa7 Kc7
32.Ng5 Ra8 33.Be3 (57.314.434.508) 1752
best move: Be3-g5 time: 545:03.531 min n/s: 1.752.548 nodes: 57.314.434.508 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
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
-
mwyoung
- Posts: 2727
- Joined: Wed May 12, 2010 10:00 pm
Re: One more issue with king safety/attack for Stockfish
I would go with 64 GB. With a 3900x or my 2950x. It does not take long to fill 58 GB of ram. And it helps find the answers much quicker in some positions.Paloma wrote: ↑Thu Jul 18, 2019 12:15 amOne question: when i build a new comp, what RAM size should i choose?
I see you set Hash to 16MB, my current Ram size is 16 MB so i can use 8MB Hash.
When i buy Ryzen 3900X as CPU i would like get 32MB RAM or should i choose 64 MB?
Mostly i analysing Test-Pos more hours, so i can choose 48MB Hash when i have 64 MB RAM.
What do you recommend? 64 or 32?
Edit:
zullil: I have 64 GB (not MB
of course i meant GB. Your 16 MB has confused me.
I think it is well worth the investment for a chess computer. For analysis or LTC engine testing....
"The worst thing that can happen to a forum is a running wild attacking moderator(HGM) who is not corrected by the community." - Ed Schröder
But my words like silent raindrops fell. And echoed in the wells of silence.
But my words like silent raindrops fell. And echoed in the wells of silence.
-
Master Om
- Posts: 449
- Joined: Wed Nov 24, 2010 10:57 am
- Location: INDIA
Re: One more issue with king safety/attack for Stockfish
Brainfish at ply 38 found it equal.
[pgn][Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "?"] [Black "?"] [Result "*"] [Analysis "Brainfish x64"] [AnalysisTime "203"] [FEN "2kr3r/p5p1/2pq4/n1b1pb2/4p1p1/2NPB1P1/PPP1BPK1/R3QR2 w - - 0 20"] [SetUp "1"] 20. Bg5 exd3 21. Bxd3 Rdf8 22. Rd1 Bd4 23. Qe2 Qg6 24. Bxf5+ Qxf5 25. Ne4 Nc4 26. Bh4 Qf3+ 27. Qxf3 gxf3+ 28. Kh3 Nxb2 29. Rd2 Nc4 30. Rd3 Nb2 {(0:03:23) 2739121kN}{[%eval 0,39,Brainfish x64][%meval 203s|TB:178k]} *[/pgn]
[pgn][Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "?"] [Black "?"] [Result "*"] [Analysis "Brainfish x64"] [AnalysisTime "203"] [FEN "2kr3r/p5p1/2pq4/n1b1pb2/4p1p1/2NPB1P1/PPP1BPK1/R3QR2 w - - 0 20"] [SetUp "1"] 20. Bg5 exd3 21. Bxd3 Rdf8 22. Rd1 Bd4 23. Qe2 Qg6 24. Bxf5+ Qxf5 25. Ne4 Nc4 26. Bh4 Qf3+ 27. Qxf3 gxf3+ 28. Kh3 Nxb2 29. Rd2 Nc4 30. Rd3 Nb2 {(0:03:23) 2739121kN}{[%eval 0,39,Brainfish x64][%meval 203s|TB:178k]} *[/pgn]
Always Expect the Unexpected