"discovered check"^^ . "a check on the opponent's king that is delivered by moving a piece out of the line of attack by a queen or rook or bishop"@en-us . "100167580"^^ . . "00167580-n"^^ . "100158328"@en-us . . . . . "discovered check"@en-us . . . . "0"^^ . . "100108692"@en-us . "0"^^ .