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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kc7 draw
5 Kd7 draw
6 Kd8 draw
7 Ke2 draw
8 Ra2 draw
9 Ra3 draw
10 Ra4 draw
11 Ra6 draw
12 Ra8 draw
13 Rb1 draw
14 Rc1 draw
15 Rd1 draw
16 Kd1 loss in 2 half-moves
17 Kd2 loss in 2 half-moves
18 Kf1 loss in 2 half-moves
19 Kf2 loss in 2 half-moves
20 Ra5 loss in 1 half-moves