+1 - there is debate right now on the SF Github page about this very topic. Hopefully they make the right decision with SF 9. It's kind of interesting those more involved with the programming aspect of SF are in direct conflict with those who have more experience with using an engine for analysis.mjlef wrote:It is great that Stockfish has a better form of Contempt now. But switching sides without reversing the Contempt sign is going to fill the hash with contradictory information if it applies contempt to the side to move. Komodo turns off Contempt in analysis mode, unless the "White Contempt" is on. Then it uses Contempt in regular play and analysis, but applies the Contempt number .com white's point of view, switching it as needed for black. This lets you use it in analysis mode without switching analysis side messing up the hash.

It's not only the switching back and forth but the analysis from black's perspective is messed as well as it delays seeing black's winning move Ne5! below by almost two minutes..

[d]2r5/8/3k2np/p2p2p1/Pp4P1/1P1N3P/2Pb1P2/3B1RK1 b - - 9 56 ; bm Ne5

current dev-SF, with contempt 20 ( default), single core, hash 64:

Code: Select all

```
dep score nodes time (not shown: tbhits knps seldep)
48 -0.47! 333.7M 3:32.37 Ne5!
48 -0.32! 279.4M 2:57.04 Ne5!
48 -0.20! 265.3M 2:48.25 Ne5!
48 -0.13! 245.6M 2:35.79 Ne5!
47 -0.05 189.3M 2:00.42 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Be5+ Kg1 Rc8 Kh1 Ng6 Re1 Bd4 Kg2 Rh8 Kg3 Rf8 Kg2 Nh4+ Kg1 Rc8 Kf1 Bf6 Kg1 Ng6 Rf1 Bd4
46 -0.05 160.3M 1:42.05 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Be5+ Kg1 Rc8 Kh1 Ng6 Kg2 Rf8 Re1 Nh4+ Kg1 Bd4 Rf1 Rc8 Kh2 Ng6 Kg3 Rc3 Kg2 Ne5 Nxe5 Kxe5
45 -0.05 131.6M 1:24.03 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Be5+ Kg1 Rc8 Kh1 Rh8 Re1 Bg7 Rf1 Ng6 Kg2 Rf8 Re1 Bc3 Rf1 Rf7 Be2 Bd4 Bd1 Rf8
44 -0.05 93.8M 0:59.91 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Ng6 Kg3 Rc8 Re1 Bc3 Rf1 Be5+ Kg2 Bf4 Re1 Nh4+ Kh1 Bd2 Rf1 Rf8 Kg1 Re8 Kh2 Ng6
43 -0.05 77.2M 0:49.40 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Ng6 Kg2 Be5 Be2 Nh4+ Kg1 Bd4 Bd1 Rc8 Re1 Bc3 Rf1 Be5 Re1 Bd4 Kh2 Bc3 Re2
42 -0.05 65.7M 0:42.06 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Ng6 Kg2 Be5 Be2 Nh4+ Kg1 Bd4 Rd1 Ng6 Kf1 Bb6 Kg1 Nh4 Kf1 Rf7 Re1 Bd4
41 -0.05 51.7M 0:33.36 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Ng6 Kg2 Be5 Be2 Nh4+ Kg1 Rc8 Bd1 Ng6 Kg2 Rc3 Re1 Nf4+ Nxf4 Bxf4 Re8
40 -0.05 42.9M 0:27.96 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Ng6 Kg2 Be5 Be2 Nh4+ Kg1 Rc8 Bd1 Bd4 Kh1 Ng6 Kg2 Re8 f4 Nh4+ Kh2
39 -0.05 38.4M 0:25.02 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Ng6 Kg2 Be5 Be2 Rc8 Bd1 Nh4+ Kg1 Bd4 Kh1 Ng6 Kg2 Rf8 Kg3
38 -0.05 24.3M 0:15.64 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Ng6 Kg2 Be5 Be2 Rc8 Bd1 Nh4+ Kh1 Rf8 Kg1 Bc3 f4 Bd4+ Kh1
37 -0.05 20.5M 0:13.23 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Ng6 Kg2 Bg7 Re1 Bc3 Rf1 Rf7 Be2 Bd4 Bd1 Rf8
36 -0.05 13.8M 0:08.97 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Rf8 Be2 Bd4 Bd1 Be5+ Kg1 Rc8 Re1 Bd4 Rf1 Ng6 Kg2 Ne5 Nxe5 Bxe5
35 -0.05 10.6M 0:06.76 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Nh4 Kh2 Re8 Kg1 Bc3 Kh2 Ng6 Kg2 Bd2 Kg3 Rc8 Kg2 Bf4 Kg1 Rf8 Kh1 Nh4 Be2 Bd2
34 -0.05 8.37M 0:05.36 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Rc7 Kg2 Ke6 Rg1 Kf6 Kf1 Rc3 Kg2 Nh4+ Kh2 d4 Rh1 Ke6 Rf1 Ng6 Rh1 Nf4 Nxf4+ gxf4 Kg2
33 -0.05 6.83M 0:04.35 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Rc7 Kg2 Ke6 Rg1 Kf6 Kf1 Rc3 Kg2 d4 Rh1 Nh4+ Kf1 Rc8 Ke2 Bc3 f4 gxf4 Nxf4
32 -0.05 5.64M 0:03.58 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Rc7 Kg2 Ke6 Rg1 Kf6 Kf1 Rc3 Kg2 d4 Rh1 Nh4+ Kf1 Rc8 Ke2 Bc3 f4 gxf4
31 -0.05 4.60M 0:02.96 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Rc7 Kg2 Ke6 Rg1 Nh4+ Kh2 Rc3 Rf1 Ng6 Kg2 Rc8 Rh1 Kf6 Rg1 Rc3 Rf1
30 -0.05 4.12M 0:02.66 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Rc7 Kg2 Rc3 Kg1 Ne5 Nxe5 Kxe5 Kg2 d4 Rh1 d3 cxd3 Rxd3 h4 gxh4 Rxh4 Bg5
29 -0.05 2.59M 0:01.64 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Rc7 Kg2 Rc3 Kg1 Ne5 Nxe5 Kxe5 Kg2 d4 Rh1 d3 cxd3 Rxd3 h4
28 -0.05 2.21M 0:01.41 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Re8 Kg2 Bf4 Kg1 Rf8 Kh1 Nh4 Be2 Bd2 Kh2 Ng6 Kg2
27 -0.05 1.93M 0:01.24 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Re8 Kg2 Bf4 Kg1 Rf8 Kh1 Ne5 Nxe5 Bxe5 Kg2 Rc8
26 -0.05 1.66M 0:01.08 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Re8 Kg2 Bf4 Kg1 Rf8 Kh1 Ne5 Nxe5 Kxe5 Kg2
25 -0.05 1.40M 0:00.92 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Nh4+ Kh1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh1 Re8 Kg2 Bf4 Re1 Rf8 Be2 Nh4+ Kh1 Bd2 Rf1 Re8
24 -0.06 992351 0:00.67 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Rb8 Rf1 Rf8 Re1 Nh4+ Kg1 Bc3 Rf1 Ng6 Kg2 Bd2 Kh2 Rc8 Kh1 Nf4 Nxf4 gxf4 Kg2
23 -0.08 617304 0:00.43 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bc3 Rf1 Bd2 Kg1 Re8 Kg2 Rf8 Be2 Rc8 Bd1 Rc7 Kg3 Bf4+ Kg2 Nh4+ Kh1
22 -0.08 529689 0:00.37 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bc3 Rf1 Bd2 Kg1 Rc7 Kg2 Rc3 Rg1 Rc8 Rf1 Rc7 Kg3 Bf4+ Kg2 Nh4+ Kh1 Ng6
21 -0.08 454483 0:00.31 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bc3 Rf1 Bd2 Kg1 Rc7 Kg2 Rc3 Rg1 Rc8 Rf1 Rf8 Be2 Bc3 Bd1 Nh4+ Kh1
20 -0.08 415416 0:00.29 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bc3 Rf1 Bd2 Kg1 Rc7 Kg2 Rc3 Rg1 Ne5 Nxe5 Kxe5 Rh1 Rc8 h4
19 -0.08 387478 0:00.27 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bc3 Rf1 Bd2 Kg1 Rc7 Kg2 Rc3 Rg1 Ne5 Nxe5 Kxe5 Rh1 Rc8 h4
18 -0.08 353981 0:00.24 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bc3 Rf1 Bd2 Kg1 Rc7 Kg2 Rc3 Rg1 Ne5 Nxe5 Kxe5 Rh1
17 -0.08 317182 0:00.22 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bc3 Rf1 Bd2 Rh1 Rc7 Rf1 Rc3 Rg1 Ne5 Nxe5 Kxe5 Rh1
16 -0.08 261502 0:00.19 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bc3 Rf1 Bd2 Rh1 Rc7 Rf1 Rc3 Rg1 Ne5 Nxe5 Kxe5
15 -0.15 191232 0:00.14 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bd4 Rf1 Rf8 Re1 Bb6 Rf1 Nf4+ Nxf4 Rxf4 Be2
14 -0.23 157858 0:00.12 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bd4 Re2 Rf8 Re1 Bb6 Rf1 Nf4+ Nxf4 Rxf4 Be2
13 -0.24 136751 0:00.10 Rf8 Kg2 Bc3 Be2 Be5 Bd1 Rc8 Re1 Bd4 Re2 Ne5 Nxe5 Bxe5
12 -0.23 112443 0:00.08 Bf4 Re1 Be5 Re2 Bd4 Rd2 Bc3 Re2 Ne5 Nxe5 Bxe5 Kg2
11 -0.27 74848 0:00.04 Rc7 Kg2 Rf7 Be2 Bc3 Bd1 Rf8 Be2 Bd4 Rd1 Ne5 Rf1 Nxd3
10 -0.14 31645 0:00.02 Rc3 Kg2 Rc7 Rh1 Rc6 Rf1 Rc3 Rh1 Rc7 Rf1 Nf4+ Nxf4
9 -0.42 7282 0:00.01 Rc3 Kg2 Ne5 Nxe5 Kxe5 Rh1 Rc8 Rg1 Rc3
8 -0.48 3596 0:00.00 Ne5 Be2 Rc3 Nxe5 Kxe5 Kg2 Rxc2 Rd1
7 -0.43 2141 0:00.00 Ne5 Nxe5 Kxe5 Kg2 Kd4 Rh1 Rc3
6 -0.53 1783 0:00.00 Ne5 Nxe5 Kxe5 Kg2 Kd4 Rh1
5 -0.45 1159 0:00.00 Rc7 Kh2 Ne5 Nxe5 Kxe5
4 -0.39 488 0:00.00 Nf4 Nxf4 Bxf4 Kg2
3 -0.50 263 0:00.00 Ne5 Nxe5 Kxe5
2 -0.50 158 0:00.00 Nh4 f3
1 -0.45 37 0:00.00 Nf4 Nxf4 Bxf4
```

current dev-SF, with contempt 0 ( has to be manually set), single core, hash 64:

Code: Select all

```
dep score nodes time (not shown: tbhits knps seldep)
41 -0.67! 83.9M 0:53.96 Ne5!
41 -0.45! 69.4M 0:44.38 Ne5!
41 -0.29! 54.7M 0:34.81 Ne5!
41 -0.18! 51.1M 0:32.42 Ne5!
41 -0.10! 47.1M 0:29.86 Ne5!
40 -0.03 33.2M 0:20.95 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Rh1 Nh4+ Kg3 Rc3 Kh2 Rc7 Rg1 Ng6 Kg3 Rf7 Kg2 Re7 Rh1 Re8 Rf1 Rf8 Rh1 Nh4+ Kh2 Rf7 Rf1 Ng6 Kh1 Ne5 Nxe5 Kxe5
39 -0.03 25.8M 0:16.34 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Rh1 Nh4+ Kg3 Rc3 Kh2 Rc7 Rg1 Ng6 Kg3 Rf7 Kg2 Re7 Rh1 Ra7 Rg1 Rf7 Rf1 Rf8 Rh1 Bc3 Rf1 Rf6 Be2 Rf8
38 -0.03 18.7M 0:11.83 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Rh1 Nh4+ Kg3 Rc3 Kh2 Rc7 Rg1 Ng6 Kg3 Rf7 Kg2 Re7 Rh1 Ra7 Rg1 Rf7 Rf1 Rf8 Kg1 Nh4 Kh1 Re8 Kg1
37 -0.03 15.4M 0:09.70 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Rh1 Nh4+ Kg3 Rc3 Kh2 Rc7 Rg1 Ng6 Kg3 Rf7 Kg2 Re7 Rh1 Ra7 Rg1 Rf7 Rf1 Rf8 Be2 Rc8 Bd1 Re8 Kh2
36 -0.03 12.5M 0:07.95 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Rh1 Nh4+ Kg3 Re8 Rg1 Ng6 Kg2 Re7 Rh1 Ra7 Rg1 Rf7 Rf1 Rf8 Be2 Rc8 Bd1 Rc3 Kh2 Ne5
35 -0.03 9.86M 0:06.19 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Rh1 Nh4+ Kg3 Re8 Rg1 Ng6 Kg2 Re7 Rh1 Ra7 Rg1 Rf7 Rf1 Rf8 Kg1 Bc3 Kg2 Nh4+ Kh2 Rf7 Kg3
34 -0.03 7.59M 0:04.68 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Rh1 Re8 Rf1 Rf8 Kg1 Bc3 Kg2 Nh4+ Kh1 Bd2 Kg1 Rf7 Kh2 Ng6 Kg1 Re7 Kg2 Rc7 Rh1
33 -0.03 6.28M 0:03.88 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Kg3 Re8 Kh2 Ra8 Kg2 Rf8 Kg1 Bc3 Kg2 Rf7 Be2 Bd4 Bd1 Rf6 Re1 Rf8 Rf1
32 -0.03 4.57M 0:02.73 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Kg3 Re8 Kh2 Ra8 Kg2 Rf8 Kg1 Bc3 Kg2 Be5 Be2 Nh4+ Kh1 Bc3 Bd1 Bd2 Kg1
31 -0.03 3.69M 0:02.19 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rc8 Kg3 Re8 Kh2 Ra8 Kg2 Rf8 Kg1 Bc3 Kg2 Be5 Be2 Rc8 Bd1 Nh4+ Kh1 Rf8
30 -0.03 2.50M 0:01.51 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rf6 Rg1 Bc3 Rf1 Rf7 Be2 Rf8 Bd1 Bd4 Re1 Rc8 Rf1 Ne5 Nxe5 Kxe5
29 -0.03 1.92M 0:01.18 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rf6 Rg1 Bc3 Rf1 Rf7 Be2 Rf8 Bd1 Bd2 Kg1 Nh4 Kh1 Rf7 Kh2
28 -0.03 1.61M 0:01.01 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rf6 Rg1 Bc3 Rf1 Rf7 Be2 Rf8 Bd1 Nh4+ Kh1 Re8 Kg1 Re7 f4 Re3
27 -0.03 1.20M 0:00.74 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rf6 Rg1 Bc3 Rf1 Rf7 Be2 Bd2 Bd1 Rf8 Kg1 Re8 Kh2
26 -0.03 989800 0:00.60 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rf6 Rg1 Bc3 Rf1 Rf7 Be2 Rf8 Kh1 Rc8 Bd1 Rc7
25 -0.03 863622 0:00.53 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rf6 Rg1 Bc3 Rf1 Rf7 Be2 Rf8 Bd1 Bd2 Kg1
24 -0.03 732843 0:00.46 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Bc3 Kg2 Rf8 Rh1 Bd2 Rf1 Rf6 Rg1 Bc3 Rf1 Rf7 Be2 Rf8 Bd1 Bd2
23 -0.03 648211 0:00.41 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Rf6 Kg2 Rf8 Kg1 Rc8 Kh2 Bc3 Kg2 Rf8 Rh1 Be5 Rf1 Bd4 Re1 Nh4+ Kg3
22 -0.03 580541 0:00.37 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Rf6 Kg2 Rf8 Kg1 Rc8 Kh2 Ne5 Nxe5 Kxe5 Kg2 Kf4 Rh1 Bc3 h4
21 -0.03 511468 0:00.33 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Rf6 Kg2 Rf8 Kg1 Rc8 Kh2 Ne5 Nxe5 Kxe5 Kg2 Kf4 Rh1
20 -0.03 474001 0:00.31 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Rf6 Kg2 Rf8 Kg1 Rc8 Kh2 Ne5 Nxe5 Kxe5 Kg2 Kf4
19 -0.03 425273 0:00.28 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Rf6 Kg2 Rf8 Kg1 Rc8 Kh2 Ne5 Nxe5 Kxe5 Kg2
18 -0.03 394661 0:00.26 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Rf7 Kh2 Rf6 Kg3 Bc3 Bf3 Rf7 Bg2 Bd4 Re1 Ne5
17 -0.03 347362 0:00.23 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Re7 Kh1 Bc3 Kg2 Rf7 Be2 Bd4 Re1 Ne5 Rf1
16 -0.05 265621 0:00.17 Rc7 Kg2 Re7 Kg1 Ra7 Bf3 Rc7 Bd1 Re7 Kh1 Ra7 Kg1 Ne5 Nxe5 Kxe5 Bf3 Rc7
15 -0.08 233689 0:00.15 Rc7 Kg2 Re7 Kg1 Rf7 Kh2 Bc3 Kg2 Bd4 Re1 Rf8 Be2 Ne5 Nxe5 Rxf2+ Kg3 Kxe5
14 -0.11 165049 0:00.11 Rc7 Kg2 Re7 Rh1 Rf7 Rf1 Rf8 Rg1 Bc3 Be2 Rc8 Bd1 Ne7 Rh1
13 -0.16 131792 0:00.09 Rc7 Kg2 Re7 Kg3 Rf7 Rg1 Bc3 Be2 Rc7 Bd1 Be5+ Nxe5 Kxe5
12 -0.10 104889 0:00.07 Rf8 Kg2 Bc3 Be2 Bd4 Re1 Ne5 Nxe5 Rxf2+ Kg3 Kxe5 Bf3+ Kd6 Re8 Rxc2
11 -0.15 65030 0:00.05 Rc3 Kh2 d4 Kg2 Ne5 Nxe5 Kxe5 Rh1 d3 cxd3 Rxd3
10 -0.04 31716 0:00.02 Rc3 Kg2 Ke6 Rg1 Kf6 Kf1 Bf4 Bf3 Ne5 Nxf4 gxf4
9 -0.15 15613 0:00.01 Rc3 Kg2 Ke6 Rh1 Kf6 Bf3 Nh4+ Kg3 Nxf3 Kxf3
8 -0.32 2135 0:00.00 Nf4 Nxf4 Bxf4 Kg2 Be5 Rh1 Bd4 Re1
7 -0.22 1602 0:00.00 Nf4 Nxf4 Bxf4 Kg2 Be5 Rh1 Bb2
6 -0.49 1016 0:00.00 Nf4 Nxf4 Bxf4 Kg2 Be5 Rh1
5 -0.35 783 0:00.00 Ne5 Nxe5 Kxe5 Kg2 Rc3
4 -0.35 636 0:00.00 Ne5 Kg2 Rc3 Nxe5 Kxe5
3 -0.49 283 0:00.00 Rc3 f3 Nf4
2 -0.37 188 0:00.00 Nf4 Nxf4
1 -0.36 37 0:00.00 Nf4
0 #
```

and with contempt set to -20 for black , it takes even longer:

Code: Select all

```
dep score nodes time (not shown: tbhits knps seldep)
50 -0.07! 291.2M 3:05.35 Ne5!
49 0.00 189.4M 2:00.13 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
48 0.00 155.9M 1:39.05 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
47 0.00 139.6M 1:28.60 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
46 0.00 79.7M 0:50.17 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
45 0.00 66.9M 0:41.97 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
44 0.00 58.8M 0:36.95 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
43 0.00 48.4M 0:30.62 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
42 0.00 35.3M 0:22.10 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
41 0.00 27.2M 0:16.86 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
40 0.00 20.5M 0:12.60 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
39 0.00 16.4M 0:10.12 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
38 0.00 13.4M 0:08.31 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
37 0.00 10.7M 0:06.69 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
36 0.00 8.28M 0:05.19 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
35 0.00 6.73M 0:04.20 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
34 0.00 5.68M 0:03.60 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
33 0.00 4.54M 0:02.92 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
32 0.00 3.76M 0:02.44 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
31 0.00 3.18M 0:02.06 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
30 0.00 2.62M 0:01.73 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
29 0.00 2.00M 0:01.34 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
28 0.00 1.58M 0:01.06 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
27 0.00 1.32M 0:00.87 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
26 0.00 1.05M 0:00.69 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
25 0.00 824940 0:00.53 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
24 0.00 643875 0:00.42 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
23 0.00 510908 0:00.33 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
22 0.00 420957 0:00.28 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
21 0.00 344320 0:00.24 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
20 0.00 286490 0:00.20 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
19 0.00 247884 0:00.17 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
18 0.00 240111 0:00.17 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
17 0.00 204623 0:00.14 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
16 0.00 181119 0:00.13 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
15 0.00 164206 0:00.12 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Kg2 Rf7
14 0.00 133037 0:00.10 Rc7 Kg2 Rf7 Rh1 Bc3 Kg3 Rc7 Rf1 Bd4 Rh1 Bc3
13 0.00 111421 0:00.08 Rc7 Kg2 Rf7 Rh1 Bc3 Be2 Bd4 Kg3 Rc7 Bd1 Bc3 Bf3 Bd4 Bd1
12 0.00 102338 0:00.08 Rc7 Kg2 Rf7 Rh1 Bc3 Be2 Bd4 Rd1 Nh4+ Kg1 Ng6 Kg2
11 -0.10 53576 0:00.04 Rc7 Kg2 Rf7 Rh1 Bc3 Be2 Bd4 Rc1 Rf8 Kg3 Rf7 Re1
10 0.00 24428 0:00.02 Rc3 Kg2 Rc7 Rg1 Rc3 Rh1 Rc7 Rg1
9 -0.32 6151 0:00.01 Rc3 Kg2 Ne5 Be2 Rxc2 Rd1 Bc3 Nxe5 Bxe5 Bd3
8 -0.40 2470 0:00.00 Rc3 Kg2 Nf4+ Nxf4 Bxf4 Rg1 Be5 Rf1 Bd4
7 -0.44 1629 0:00.00 Rc3 Kg2 Nf4+ Nxf4 Bxf4 Bf3 Be5 Re1
6 -0.38 833 0:00.00 Ne5 Kg2 Nxd3 cxd3 Rc3 d4
5 -0.27 676 0:00.00 Ne5 Nxe5 Kxe5 Kg2 Rc3
4 -0.27 522 0:00.00 Ne5 Kg2 Rc3 Nxe5 Kxe5
3 -0.40 271 0:00.00 Rc3 f3 Nf4
2 -0.30 180 0:00.00 Nf4 Nxf4
1 -0.27 37 0:00.00 Nf4
0 #
```