Discovered Check Advanced in Chess

Discovered check advanced is a tactical motif where one piece moves away to reveal a check from another piece along a line (file, rank, or diagonal). The “advanced” part usually means the reveal is not just a check—it’s timed with tempo, often after a forcing move like a zwischenzug or a pinned-piece release. A common defining feature is that the checking piece’s line is blocked by the moving piece, and the move simultaneously opens the attack and forces a response.