1.Db4 Df3 [ 1…Dg2 2.Da3+ Kb6 3.Db2+ Dxb2 4.b8D+ ; 1…Dh1 2.Da3+ Kb6 3.Db2+ Kc7 4.Dh2+ Dxh2 5.b8D+ ] 2.Da4+ Kb6 3.Db3+ Dxb3 4.b8D+ *