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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 Kb6 draw
3 Kc6 draw
4 Kc8 draw
5 Kd8 draw
6 Rb8 draw
7 Re1 draw
8 Re2 draw
9 Re3 draw
10 Re4 draw
11 Rc8 loss in 18 half-moves
12 Kb7 loss in 16 half-moves
13 Kb8 loss in 4 half-moves
14 Kd6 loss in 2 half-moves
15 Kd7 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves