Puzzle #51: Discovered attack
Rating ≈ 1300 · 2 moves to find
Black to move and win material.
Show a hint
Moving one piece can open a line for another.
Show the solution
- 62… Rg3+ — the rook goes to g3 and uncovers a check from the bishop on c4 and at the same time attacks the rook on g1.
- 63. Kb2 is forced: it is the best way out of check.
- 63… Rxg1 — the rook takes the rook on g1.
Why it works. Moving one piece uncovers an attack from another, creating two threats in a single move. At the end of the line Black is about 5 points of material better off.
Themes: Discovered attack, Winning material
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This position comes from a training game and was checked with a chess engine: every move you need to find is the only one that works.