task_games__chess__marked_piece_destination_count

Contract

1. Domain: games
2. Scene id: chess
3. Public task id: task_games__chess__marked_piece_destination_count
4. Supported query_id values: single
5. Answer schema: integer_count
6. Annotation schema: bbox_set
7. Program schema: count(empty_legal_destinations(marked_piece)); scene=chess; scope=marked_piece_destination_count

Program Contract

Program: count(empty_legal_destinations(marked_piece)); scene=chess; scope=marked_piece_destination_count

Candidate set: empty board squares reachable by the marked piece in one normal chess move. Operands: the marked chess piece, visible board occupancy, friendly blockers, and normal chess movement rules. Operation: count legal one-move destination squares that are empty; capturable opponent-occupied squares are excluded. Output binding: answer uses the integer schema; generation binds a unique final answer. Annotation witnesses: annotation uses bbox_set, one board-square box for each counted empty destination square. Query ids: single.

Reasoning Operations

Families: counting, state_update

Generation Notes

1. The red outlined square contains the marked piece.
2. Friendly pieces block movement.
3. Opponent pieces are capture targets and are not counted by this task.
4. Capturable opponent pieces are covered by task_games__chess__marked_piece_capture_count.
5. The internal prompt/query key is marked_piece_destination_count; it is not a public query branch.