2x2

1.a1-b2 d6-e5

[ 1...h6-g5 2.f4:h6 d6-e5 3.h6-g7 e5-f4 4.g7-h8 f4-e3 ( 4...f4-g3 5.h8-d4 ) 5.h8-d4 e3:c5 6.b2-c3 ]
2.f4:d6 h6-g5 3.d6-c7 g5-f4 4.c7-b8 f4-e3 5.b8-a7 e3-d2 6.b2-c3 d2:b4 7.a7-d4 1-1

created with Aurora Borealis 3.0