Thanks to the mating motif the knight doesn't need to retreat.

5.Qxd3 Rxc3! , again exploiting the mating motif.

Black has a clear initiative.

A decisive queen transfer with two concrete ideas: 2 R(Q)h3 with mating motifs, and 2 Qg2, creating deadly threats at g7 and g8.

After 2...Qg2 , due to the double threat of 3.Rg8+ and 3.Rh3! Qxh3 4.Qg7# Black resigned.

Preparing 2...Qe8 to step up the pressure on the open file.

With ideas like ...Nc4 and ...Qa4+.

4.Qxd5?! Rxe2 5.Rxe2 Rxe2 6.Qxa5 Ng3! 7.Rf3 Qe4 with a strong attack.

5.bxc4? Qa4+ 6.Kc1 Ba3+ 7.Kb1 Rb6+ 8.Ka1 Qc2 -+

Eyeing the weak square on d3, thus forcing White to give up material.