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New version chess engine: Ice4 v6

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Ice4 - UCI chess engine
by Minus Kelvin (Germany)  Rating Chess Engines Diary CEDR=3054

v.6:
This is the version of ice4 that will play in the TCEC Season 28 4k V event in April 2025, and is approximately 150 elo stronger than v5.
For more information, see https://wiki.chessdom.org/TCEC_4k_Rules.

ice4-ob (x86-64 only) supports FEN positions and configuring hash size and thread count.
ice4.exe is a Windows build identical to ice4-ob.
ice4 is configured with 1 thread and 8MB hash.
ice4-tcec is configured with 256 threads and 256 GiB hash.

Ice4 v5 vs other engines:
Caissa 1.201/14-1214 Games
CorChess 202408041/12-1012 Games
SF-PRO 05.08.20240.5/12-1112 Games
Marauders 3.81/10-810 Games
Yuliana 5.00.5/10-910 Games
Patricia 3.12/9-59 Games
Inanis 1.4.05/8+28 Games
Critter 1.6a2/8-48 Games
HypnoS 0308240.5/8-78 Games
Stockfish 16.10/8-88 Games
Stockfish 20240803 Ivec0/8-88 Games
Nectar 0.0.56/6+66 Games
Nalwald 191.5/6-36 Games
Steel Fighter III0.5/6-56 Games
Uralochka 3.41a JA0/6-66 Games
Halogen 12.0.00/6-66 Games
PlentyChess 3.0.0 JA0/6-66 Games
Hedgehog 2.4073.5/4+34 Games
Knightx 4.13/4+24 Games
Cadie 1.81.5/4-14 Games
Protej 20240811a1.5/4-14 Games




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