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 Kb7 draw
3 Kd2 draw
4 Kd3 draw
5 Kd4 draw
6 Ke2 draw
7 Ke4 draw
8 Kf2 draw
9 Kf3 draw
10 Kf4 draw
11 Ra1 draw
12 Ra2 draw
13 Ra3 draw
14 Rb7 draw
15 Kb6 loss in 2 half-moves
16 Kb8 loss in 2 half-moves
17 Kc6 loss in 2 half-moves
18 Kc8 loss in 2 half-moves
19 Kd6 loss in 2 half-moves
20 Kd7 loss in 2 half-moves
21 Kd8 loss in 2 half-moves
22 Ra5 loss in 2 half-moves
23 Ra6 loss in 2 half-moves
24 Ra8 loss in 2 half-moves