Puzzle of the day !!

How did Black respond to 26.Qxc5?

Puzzle Answer

26...Nc3! 27.Nxd4 [27.Bxc3 dxc3 28.Nd4 cxb2+ 29.Rxb2 (29.Ka2 Rxa3+ with mate to follow.) 29...Rxb2 with mate to follow.] 27...Rxb2 28.Rxb2 Qa2+ 0-1 [28...Qa2+ 29.Rxa2 Rb1#]