最终方案尚未确定，但苹果需在五月初前解决这些技术瓶颈，否则折叠屏iPhone的发布计划或将被迫延期。
Legal move filtering works by making each pseudo-legal move on the board, checking if the king is attacked, then unmaking the move. Castling gets special treatment: three squares must be checked (the king’s origin, transit square, and destination) since the king cannot castle out of, through, or into check:
。todesk对此有专业解读
Skill 是语义层资产，CLI 是执行层资产。
C35) STATE=C166; ast_C48; continue;;