1.Cf1! exf1=D [ 1...exd1=D 2.Cg3+ Rg2 3.Cf5+ Rf1 4.Cg3+; 1...Txf1 2.Axb3 Tg1 3.Ad5+] 2.Af3+ Dg2 3.Axg2+ Rg1 4.Ah3+ Rh1 5.Ag2+ Rg1 6.Ah3+ ½–½