George Tsavdaris wrote: ↑Tue Jul 16, 2019 6:28 pm
zullil wrote: ↑Mon Jul 15, 2019 8:44 pm
jp wrote: ↑Mon Jul 15, 2019 5:05 pm
Well, what is Lc's evaluation for the position above? Maybe it's also about 0.5-1.0 towards Black.
128x10.T17.6-swa-20000 lc0's output:
info depth 23 seldepth 58 time 1557045 nodes 4665017 score cp 48 hashfull 1000 nps 2996 tbhits 0 pv a8d8 d1d2 g8h7 h3h4 h5f7 e6d6 g5g4 d6d8 c6d8 f3d4 f7c4 g1h1 d8e6 h2g1 e6d4 b3d4 c4a2 f2f3 g4g3 b2b3 b6d4 g1d4 a2b3 d4a7 b7b5 d2d7 h7g6 d7d6 g6h7 a7d4 f8a8 d6f6 a8a1 d4g1 h6h5 f6f4 h7g6 f4f8 a1c1 f8e8 c1c3 e8e5 c3c4 g1e3 b5b4 e5g5 g6f7 g5g3 c4h4 h1g1 b3e6 g3g5
Perhaps someone with a "real" lc0 system can provide better.
Lc0 v21.2 JH T8-swa-610000(the TCEC sufi15 winner net):
Code: Select all
22/55 00:43 1.457.324 33.764 -0,92 Ra8-d8 Rd1xd8 Rf8xd8 Nb3-d2 Bh5-f7 Re6-e2 Bf7xa2 g2-g3 Bb6-c7 g3xf4 g5xf4 Nf3-h4 Kg8-h7 Nh4-g2 Rd8-f8 b2-b3 f4-f3 Nd2xf3 Rf8xf3 Bh2xc7 Ba2xb3 Re2-d2 Rf3xc3 Rd2-d7+ Kh7-g8 Bc7-d6 b7-b5 Rd7-b7 b5-b4 Bd6xb4 Nc6xb4 Rb7xb4 a7-a5 Rb4-b6 a5-a4 Rb6-a6 Rc3-c1+ Kg1-h2 Rc1-a1 Ra6-b6 Ra1-b1 Rb6-a6 h6-h5 Ng2-e3 Rb1-a1 Ra6-b6 Bb3-f7 Rb6-b8+ Kg8-g7 Rb8-b7 a4-a3
Thanks, George. Here's the Lc0 output you got:
[pgn]
[FEN "r4rk1/pp6/1bn1R2p/6pb/5p2/1NP2N1P/PP3PPB/3R2K1 b - - 0 7"]
Ra8-d8 Rd1xd8 Rf8xd8 Nb3-d2 Bh5-f7 Re6-e2 Bf7xa2 g2-g3 Bb6-c7 g3xf4 g5xf4 Nf3-h4 Kg8-h7 Nh4-g2 Rd8-f8 b2-b3 f4-f3 Nd2xf3 Rf8xf3 Bh2xc7 Ba2xb3 Re2-d2 Rf3xc3 Rd2-d7+ Kh7-g8 Bc7-d6 b7-b5 Rd7-b7 b5-b4 Bd6xb4 Nc6xb4 Rb7xb4 a7-a5 Rb4-b6 a5-a4 Rb6-a6 Rc3-c1+ Kg1-h2 Rc1-a1 Ra6-b6 Ra1-b1 Rb6-a6 h6-h5 Ng2-e3 Rb1-a1 Ra6-b6 Bb3-f7 Rb6-b8+ Kg8-g7 Rb8-b7 a4-a3
[/pgn]
The SF & Leela outputs are 0.5-1.0 in Black's favor.
There's no big difference between what SF & Leela think.
They could both be wrong, but it looks like White is on the worse side of a draw.
In Leela's PV after 18. Rd2, SF's evaluation is -0.85, depth=34, and its PV leads to this tablebase draw:
[d]8/3k4/R3b3/8/p7/5r2/5P2/6K1 w - - 0 31
In Leela's PV after 25. Ra6, SF's evaluation is -1.25, depth=33, and its PV leads to this TB draw:
[d]8/8/4k3/R7/5r2/5N2/p2K4/1b6 w - - 0
At the end of Leela's PV after 32...a3, SF's PV at some depth leads to this TB draw,
[d]8/8/8/4k3/7p/5K1b/p4P2/2R5 w - - 0 42
and at depth 40 SF's evaluation is 0.00, and its PV leads to this TB draw:
[d]8/8/8/8/5K1p/1b5k/p4P2/R7 w - - 0 46