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

EGTB: win in 4 half-moves

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