[Event "Beijing, 2005"] [White "Wu Wenjin"] [Black "Bu Xiangzhi"] [FEN "2r1k2r/1p2pp1p/1p2b1pQ/4B3/3n4/2qB4/P1P2PPP/2KRR3 b - - 0 1"] %Hidden=1 1... Qxc2+ 2. Bxc2 Rxc2+ 3. Kb1 Bxa2+ 4. Ka1 Nb3#