State Pair
Creates an object that represents a puzzle state (flattened into one dimension, following row-major order) alongside the position of the blank tile in the puzzle grid (zero-based, following row-major order).
Parameters
puzzleState
Puzzle state (flattened into one dimension, following row-major order).
blankTilePos
Position of the blank tile in the puzzle grid (zero-based, following row-major order).