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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Kc5 draw
3 Kc6 draw
4 Kc7 draw
5 Kd5 draw
6 Kd7 draw
7 Ke5 draw
8 Ke6 draw
9 Ke7 draw
10 Kg6 draw
11 Kg7 draw
12 Kg8 draw
13 Kh6 draw
14 Kh8 draw
15 Ra4 draw
16 Ra5 draw
17 Ra6 draw
18 Ra8 draw
19 Rf3 draw
20 Ra1 loss in 2 half-moves
21 Ra2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rc3 loss in 2 half-moves
24 Rd3 loss in 2 half-moves
25 Re3 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rh3 loss in 2 half-moves