Chess Position Evaluation Using Radial Basis Function Neural Networks

Table 2

Stockfish evaluation functions and helpers.

Main evaluation	General cumulative evaluation
Middle-game evaluation	Cumulative evaluation for the middle game
Endgame evaluation	Cumulative evaluation for the endgame
Scale factor	Scaling coefficient for the endgame evaluation
Phase	Weight value based on the nonpawn material on the board, indicating the phase of the game (opening, middle game, endgame)
Tempo	Bonus for having the turn to move