Chess player/Move generation

From Rosetta Code

{{draft task|Move generation}} This is a sub-task of the Chess player task.

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Using suitable data structures, generate a list of valid moves given a chess game position and the side-to-move. You can create a basic (and incomplete) solution or create an advanced solution which covers all possible moves and depends on tracking more of the game state.

Basic implementation:

  1. Moves based on piece type
  2. Promotion to queen
  3. Allow resignation

More advanced/full implementation:

  1. Castling (not through check)
  2. En-passant capture
  3. All promotions
  4. Move legality for moving in/out of check
  5. Draw by repetition and 50-move rule

Describe how complete your solution is, and try to create a self-contained component which could be used by a complete chess program.