Chess Puzzle #1F1xx — Beginner, Black to move, middlegame

Position

White: king f4; rooks c1/h1; bishop a5; knight c3; pawns a2/b2/e5/h2. Black: king c8; rook d3; bishops a6/f8; knight c2; pawns a7/c6/d5/f7/h5. White is ahead by 1 point of material. Black to move.

Solution (2 moves)

1. Opponent setup: Rxc2 — rook c1→c2, captures knight. Now Black to move.
2. Best move: Bh6+ — bishop f8→h6, gives check. Opponent replies Kf5 (king f4→f5).
3. Best move: Rf3# — rook d3→f3, delivers checkmate.

Why this works

After 1...Bh6+, the bishop gives check from h6, and White's king has only one legal move: 2.Kf5 (the e4, e6, g5, and g4 squares are all controlled by Black's pieces or pawns). The rook on d3 then delivers checkmate with 2...Rf3# because the f-file is now a mating corridor. The king on f5 cannot escape: e4 and e6 are controlled by the rook on f3, g5 is controlled by Black's h5-pawn, g4 is controlled by the same rook, f4 is occupied by the rook, and g6 is also controlled by the h6-bishop. White has no piece that can interpose on the f-file or defend f3.

What to practice

Recognize Pillsbury's mate pattern: when the enemy king is exposed on the fourth or fifth rank, a rook-and-bishop battery along a file can deliver mate if the king's escape squares are cut off by pawns and minor pieces. The key preparatory move is a check that forces the king onto the fatal rank, eliminating backward moves and creating a tempo for the mating rook to occupy the file unopposed.

Tactical themes

mate, mate in 2, middlegame, pillsburys mate, short. The combination ends with Rf3# delivering checkmate.

Position data

FEN: 2k2b2/p4p2/b1p5/B2pP2p/5K2/2Nr4/PPn4P/2R4R w - - 0 28

Solve this puzzle interactively on Brilliant Knight — free tactics training powered by Stockfish 18, no signup required.