自由摆盘Sandbox
FEN按规则自由走棋（不计成绩）。Play any position under the rules (not scored).
载入局面Load a position
粘贴任意 FEN，双方都可以走；链接带 ?fen= 可以分享。Paste any FEN and move for both sides; links with ?fen= can be shared.
按规则自由走棋（不计成绩）。Play any position under the rules (not scored).
粘贴任意 FEN，双方都可以走；链接带 ?fen= 可以分享。Paste any FEN and move for both sides; links with ?fen= can be shared.