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

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kd2 draw
6 Ra4 draw
7 Rb2 draw
8 Ka5 loss in 2 half-moves
9 Ka7 loss in 2 half-moves
10 Kc1 loss in 2 half-moves
11 Kc3 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 Kb1 loss in 1 half-moves
17 Kb2 loss in 1 half-moves
18 Kb3 loss in 1 half-moves