Alekhine Defense Osullivan Gambit Capturing Defender in Chess

In the Alekhine Defense: O’Sullivan Gambit, the “capturing defender” motif means you sacrifice or allow a pawn/tempo so that a key defender is forced to capture—then that capturing piece becomes the target. A defining feature is the tactical sequence where White’s pawn capture (or recapture) commits the defender, letting Black win time or material by capturing that piece or undermining its support.