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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kab4 draw
3 Ka5 loss in 4 half-moves
4 Ka2 loss in 2 half-moves
5 Kb2 loss in 2 half-moves
6 Kbb4 loss in 2 half-moves
7 Kc2 loss in 2 half-moves
8 Kc3 loss in 2 half-moves
9 Kc4 loss in 2 half-moves
10 Ra1 loss in 2 half-moves
11 Ra2 loss in 2 half-moves