Chess engine: Stockfish 20062822Nicolet

Stockfish - UCI chess engine, compiled by Stéphane Nicolet
Rating JCER=3304

Timestamp: 1593376963

Scale down eval for queen imbalance
We lower the endgame value of the evaluation when we detect that there is only one queen left on the board (more precisely, we use a scale factor of 37/64, or about 0.58, for the endgame part of the evaluation).
Hopefully this helps a little bit for the assessment of positions with queen imbalance, which are one of the well-known Stockfish weaknesses.

STC:
LLR: 2.94 (-2.94,2.94) {-0.50,1.50}
Total: 21600 W: 4176 L: 3955 D: 13469 Elo +3.55
Ptnml(0-2): 351, 2457, 5003, 2598, 391

LTC:
LLR: 2.97 (-2.94,2.94) {0.25,1.75}
Total: 248328 W: 30596 L: 29720 D: 188012 Elo +1.23
Ptnml(0-2): 1544, 22345, 75665, 22911, 1699

Bench: 4441323

Stockfish 20062822Nicolet download