dicechess-engine
0.14.10-SNAPSHOT
API
Generated with
Fortemate Dice Chess Engine
Fortemate Dice Chess Engine
dicechess-engine/dicechess.engine/dicechess.engine.search/KcpFeatures

KcpFeatures

dicechess.engine.search.KcpFeatures
object KcpFeatures

RichFeatures plus the king/queen capture probabilities — the feature that encodes the win condition of Dice Chess (capturing the king) directly, rather than through a material or activity proxy.

Each probability is integrated over the opponent's 216 possible dice rolls (see KingCaptureProbability), so like the rest of the set it is mover-perspective and dice-independent — it describes the next roll, not the current pool — matching the dice-free leaf the search evaluates. Kept separate from RichFeatures on purpose, so the cheap set the 2-ply search uses stays unchanged.

Attributes

Note

Cost: every capture probability is a 216-outcome DFS (millisecond-scale), far heavier than RichFeatures' two move-generation passes. This set targets training enrichment and one-ply inference only — a 2-ply search's hundreds of thousands of leaves per move would make it thousands of seconds per move.

Source
KcpFeatures.scala
Graph
Supertypes
class Object
trait Matchable
class Any
Self type

Members list

Value members

Concrete methods

def extract(state: GameState, color: Color): Array[Float]

Extracts the columnNames vector from color's perspective: the RichFeatures block, then the king and queen capture probabilities. KingCaptureProbability.*CaptureProbability(state, defenderColor) is the chance the defender's piece falls to its opponent's next roll, so attack passes the opponent as defender (the mover is the attacker) and danger passes the mover itself.

Extracts the columnNames vector from color's perspective: the RichFeatures block, then the king and queen capture probabilities. KingCaptureProbability.*CaptureProbability(state, defenderColor) is the chance the defender's piece falls to its opponent's next roll, so attack passes the opponent as defender (the mover is the attacker) and danger passes the mover itself.

Attributes

Source
KcpFeatures.scala

Concrete fields

val columnNames: List[String]

RichFeatures.columnNames followed by the capture-probability columns, mover-perspective:

RichFeatures.columnNames followed by the capture-probability columns, mover-perspective:

  • *_attack — probability the mover captures the opponent's king/queen on the mover's next roll;
  • *_danger — probability the opponent captures the mover's own king/queen on the opponent's next roll.

Attributes

Source
KcpFeatures.scala
val schemaId: String

Stable id of this feature contract. Unversioned, unlike the newer sets: kcp-13 is the id the deployed evaluation service and the training repository's serving contract already use, and re-spelling it here would fork the contract rather than share it.

Stable id of this feature contract. Unversioned, unlike the newer sets: kcp-13 is the id the deployed evaluation service and the training repository's serving contract already use, and re-spelling it here would fork the contract rather than share it.

Attributes

Source
KcpFeatures.scala
Generated with
Fortemate Dice Chess Engine
Fortemate Dice Chess Engine