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 Ra1 draw
3 Ra5 draw
4 Ra6 draw
5 Rd4 draw
6 Re4 draw
7 Rf4 draw
8 Rg4 draw
9 Ka7 loss in 2 half-moves
10 Kb7 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kc8 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Ke8 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves