1.Qg2+ 2.Rxg2-Re1+ 3.Qf1-Rxf1+ 4.Rg1-Rxg1++ Checkmate!

good job, thanks for you answer Mercier.

1.-Dg2+.Txg2 2.-Te1+.Df1 3.-Txf1+.Tg1 4.-Txg1++