With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: Chess is an abstract strategy game and involves no hidden information. It is played on a square chessboard with 64 squares arranged in an eight-by-eight grid. At the start, each player (one controlling the white pieces, the other controlling the black pieces) controls sixteen pieces: one king, one queen, two rooks, two knights, two bishops, and eight pawns. The object of the game is to checkmate both the opponent's king and queen, whereby they are under immediate attack (in "check") and there is no way for them to escape. There are also several ways a game can end in a draw.
text_B: Can the king escape a checkmate?
NO.