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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Kb6 draw
3 Kb8 draw
4 Kc6 draw
5 Ra7 draw
6 Rc8 draw
7 Kc7 loss in 8 half-moves
8 Rd8 loss in 8 half-moves
9 Re8 loss in 8 half-moves
10 Rf8 loss in 8 half-moves
11 Ka7 loss in 6 half-moves
12 Rb8 loss in 6 half-moves
13 Ka6 loss in 4 half-moves
14 Kc8 loss in 4 half-moves
15 Ra1 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Ra5 loss in 2 half-moves
19 Ra6 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves