[White "Daily tactics #7"]   [Black "Black to play and win"]   [Result "1-0"]   [FEN "r7/1p3k2/1Qpn1p2/8/P3b3/KPP5/3q1P2/2R3R1 b - - 0 1"]   1... Nc4+!! 2 bxc4 Ra4!! { An amazing shot.}  3 Kxa4 Qa2+ 4 Kb4 Qb2+   5 Ka5  (5 Kc5 Qxf2+ {and} 6.. Qxb6) Qa3  {mate}