New answers tagged stockfish
1
A simple board material evaluation using python-chess.
Code
import chess
PV = {
'pawn': 100,
'knight': 320,
'bishop': 330,
'rook': 500,
'queen': 950
}
DRAW_VALUE = 0
def evaluation(board):
if board.is_insufficient_material():
return DRAW_VALUE
wp = len(board.pieces(chess.PAWN, chess.WHITE))
bp = len(board.pieces(...
0
The usually basic evaluation people will start off with consistent material balance and piece-square tables. The material balance makes sure the engine understands basic ideas of trading and tactics, while the piece-square tables make sure the engine plays reasonable chess and encourages ideas like pushing pawns in the endgame or centralizing knights.
It ...
3
An engine's hash table is a data structure where the engine stores positions and evaluations which it already calculated.
The parameter hashfull tells what permille full the hash is, i.e. how full it is on a scale of 0-1000. Hashfull 0 means that the hash is empty, no data is being stored. Hashfull 1000 means that the hash is full, and no more data can be ...
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