[Event "URS, 1936"] [White "Viacheslav Ragozin"] [Black "Mikhail Botvinnik"] [FEN "1k1r2r1/ppq4p/4Q3/1B2np2/2P1p3/P7/2P1RPPR/2B1K3 b - - 0 1"] %Hidden=1 1... Nf3+ 2. Kf1 Rd1+ 3. Re1 Rxe1#