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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kc6 win in 3 half-moves
3 Kb3 win in 9 half-moves
4 Ra8 win in 9 half-moves
5 Rb7 win in 9 half-moves
6 Kc4 win in 13 half-moves
7 Kb2 draw
8 Kc2 draw
9 Kc7 draw
10 Kc8 draw
11 Kd8 draw
12 Ke6 draw
13 Ke7 draw
14 Ke8 draw
15 Ra3 draw
16 Ra4 draw
17 Ra5 draw
18 Ra6 draw
19 Rc7 draw
20 Kd2 loss in 2 half-moves
21 Kd3 loss in 2 half-moves
22 Kd4 loss in 2 half-moves
23 Kd6 loss in 2 half-moves
24 Ra1 loss in 2 half-moves
25 Ra2 loss in 2 half-moves