Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Kb1 win in 1 half-moves
2 Kb4 win in 1 half-moves
3 Ka1 loss in 2 half-moves
4 Kc1 loss in 2 half-moves
5 Kc2 loss in 2 half-moves
6 Kc3 loss in 2 half-moves
7 Ka4 loss in 1 half-moves
8 Kab3 loss in 1 half-moves
9 Kbb3 loss in 1 half-moves
10 Ra1 loss in 1 half-moves