Isaak Kavnatsky
Probleemblad 1996		  
week73a

1.Pc4! [2.Pe3#]

1…Lxd6,Lf4,Lg1 2.Dh1#

1…exd6 2.Db7#

1…Pexd6 2.Pc7#

1…Pcxd6 2.Pab6#

1…d3 2.Txd3#
Wit geeft mat in 2 zetten