/heuristic

Balance of a chess heuristic.

variant

The chess variant as per these options.

• classical chess, also known as standard or slow chess.
• 960 is the same as classical chess except that the starting position of the pieces is randomized.
• dunsany is an asymmetric variant in which Black has the standard chess army and White has 32 pawns.
• losing chess, the objective of each player is to lose all of their pieces or be stalemated.
• racing-kings consists of being the first player to move their king to the eighth row.
• capablanca incorporates two new pieces, the archbishop and the chancellor, and is played on a 10×8 board.
• capablanca-fischer is a mix of Capablanca chess and Chess960.

movetext

The sequence of moves played in the game.

name

The name of the heuristic as per these options.

• Material
• Center
• Connectivity
• Space
• Pressure
• King safety
• Protection
• Discovered check
• Doubled pawn
• Passed pawn
• Advanced pawn
• Far-advanced pawn
• Isolated pawn
• Backward pawn
• Defense
• Absolute skewer
• Absolute pin
• Relative pin
• Absolute fork
• Relative fork
• Outpost square
• Knight outpost
• Bishop outpost
• Bishop pair
• Bad bishop
• Diagonal opposition
• Direct opposition
• Overloading

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Usage

Example

ws.send('/heuristic "{\\"variant\\":\\"classical\\",\\"movetext\\":\\"1.e4 e5 2.Nf3 Nc6 3.Bc4\\",\\"name\\":\\"Center\\"}"');

{
  "/heuristic": [
    0,
    1,
    0,
    0.62,
    0.25,
    0.81
  ]
}