2x2

1.f4-e5

[ 1.a5-b6? f8-d6 2.b6-a7 d6:h2 3.a7-b8 d8-c7 4.b8:d6 h2:b8 ]
[ 1.f4-g5? d8-e7 2.a5-b6 ( 2.g5-h6 e7-f6 3.a5-b6 f8-d6 4.b6-a7 d6-b8 ) 2...e7-f6 3.g5:e7 f8:a7 ]
1...f8-c5
[ 1...f8-g7 2.e5-d6 g7-d4 3.d6-c7 d8:b6 4.a5:c7= ]
2.e5-f6 c5-d4 3.a5-b6 d4:g7 4.b6-a7= 1-1

created with Aurora Borealis 3.0