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

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Kb2 win in 7 half-moves
3 Kb4 win in 7 half-moves
4 Rb2 win in 7 half-moves
5 Ka3 win in 9 half-moves
6 Kd2 win in 11 half-moves
7 Kab3 loss in 2 half-moves
8 Kb1 loss in 2 half-moves
9 Kc1 loss in 2 half-moves
10 Kc3 loss in 2 half-moves
11 Kcb3 loss in 2 half-moves
12 Kd1 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 Ra3 loss in 2 half-moves
16 Ka5 loss in 1 half-moves