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

EGTB: win in 4 half-moves

# move score
1 Ra6 win in 3 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc6 draw
6 Kc8 draw
7 Kd6 draw
8 Kd7 draw
9 Kd8 draw
10 Ke5 draw
11 Ke6 draw
12 Kf6 draw
13 Kg4 draw
14 Kg5 draw
15 Kg6 draw
16 Ra4 draw
17 Ra5 draw
18 Ra7 draw
19 Ra8 draw
20 Rb3 draw
21 Rc3 draw
22 Rd3 draw
23 Rh3 draw
24 Ke4 loss in 2 half-moves
25 Kf4 loss in 2 half-moves
26 Ra1 loss in 2 half-moves
27 Ra2 loss in 2 half-moves
28 Re3 loss in 2 half-moves
29 Rf3 loss in 2 half-moves
30 Rg3 loss in 2 half-moves