1.e4??
( {The simplest loss is} 1.d4?? e5 2.dxe5 Qg5
3.Qxd7 Bxd7 4.Bxg5 Kd8 5.Bxd8 a6 6.Bxc7 Ra7 7.Bxb8
b6 8.Bxa7 a5 9.Bxb6 g6 10.Bxa5 Bb4 11.Bxb4 Ne7
12.Bxe7 Rf8 13.Bxf8 h6
14.Bxh6 g5 15.Bxg5 f6 16.Bxf6 Bh3 17.Nxh3 0-1
)
( {The most complex is} 1.d3?? g5 2.Bxg5 Bg7
3.Bxe7 Bxb2 4.Bxd8 Bxa1 5.Bxc7 Bc3 { and white loses no matter which
capture he chooses: }
6.Bxb8
( {Or} 6.Nxc3 d5 7.Nxd5 Nf6