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 Kb7 draw
3 Kb8 draw
4 Kc6 draw
5 Kcc7 draw
6 Kcd8 draw
7 Kd6 draw
8 Kdc7 draw
9 Kdd8 draw
10 Ke6 draw
11 Ke7 draw
12 Ke8 draw
13 Ra5 draw
14 Ra7 draw
15 Ra8 draw
16 Rb1 draw
17 Rc1 draw
18 Rd1 draw
19 Rh1 draw
20 Ra2 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Rf1 loss in 2 half-moves
25 Rg1 loss in 2 half-moves