Svart 3

I am happy to present Svart 3, introducing an NNUE evaluation from a 786->256x2->1 net.

Thank you to:

• @cosmobobak
• @dede1751
• @uwuplant
• @MinusKelvin

Who's open source code and help contributed a lot to the development of Svart's NNUE.
I would also like to thank @dsekercioglu for their amazing Marlinflow trainer that Svart's nets are trained with.

Elo gain

Using the noob_4moves.epd book in self-play:

8+0.08 (STC)

Score of svart3 vs svart2 after 512 rounds: 855 - 41 - 128 (0.90)
Ptnml:        WW     WD  DD/WL     LD     LL
Distr:       357    110     35     10      0
Stats:  W: 83.5%   L: 4.0%   D: 12.5%   TF: 0
Elo difference: 376.85 +/- 28.65

40+0.4 (LTC)

Score of svart3 vs svart2 after 700 rounds: 1150 - 40 - 210 (0.90)
Ptnml:        WW     WD  DD/WL     LD     LL
Distr:       474    172     45      8      1
Stats:  W: 82.1%   L: 2.9%   D: 15.0%   TF: 0
Elo difference: 374.91 +/- 23.12

Noteable changes

• Improved LMP (#24)
• Improved aspiration windows (#26)
• Improved NMP (#29)
• Introduction of NNUE (#30)

Full changelog: feliskio/svart@v2.0.0...v3.0.0