Botez Gambit Puzzle (Rated 1402): Back Rank Mate — Mate in 3

This puzzle is a classic back rank mate pattern in a sharp middlegame/endgame transition. White’s heavy pieces are active on the c-file, and Black’s king is boxed in by its own back-rank pieces and pawns. The key idea is to use a forcing queen sacrifice to drag a defender away, then invade the eighth rank with a rook. Once the defender is removed, the remaining rook check becomes decisive because the king has no safe flight squares.