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 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kc7 draw
7 Kd5 draw
8 Kd6 draw
9 Kd7 draw
10 Kg7 draw
11 Kg8 draw
12 Kh8 draw
13 Ra5 draw
14 Ra6 draw
15 Ra8 draw
16 Rb4 draw
17 Rc4 draw
18 Rd4 draw
19 Re4 draw
20 Rf4 draw
21 Kg6 loss in 2 half-moves
22 Kh6 loss in 2 half-moves
23 Ra1 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Ra3 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rh4 loss in 2 half-moves