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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Ka6 draw
3 Ka8 draw
4 Kb1 draw
5 Kb6 draw
6 Kb7 draw
7 Kb8 draw
8 Kd1 draw
9 Kd2 draw
10 Rb1 draw
11 Kb2 loss in 2 half-moves
12 Kc2 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves