xAI interview questions for engineering roles

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Checkers backend

Model an eight-by-eight board. Each piece is one side's, and each piece is regular or king. There is no hidden grader. The work is the data model and the method boundaries.

Practice focusRequirements - A move check confirms the piece belongs to the player, the destination is empty, the step is diagonal, and the direction matches the piece type. - A capture jumps an opposing piece and may continue in a chain. - A piece that reaches the far row becomes a king. - The game ends when the opponent has no pieces or no legal move. - Represent the board as a grid of optional pieces. - Say whether each move returns a new board or changes the old one.…