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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rc8 win in 11 half-moves
3 Kb6 draw
4 Kc6 draw
5 Kd6 draw
6 Kh4 draw
7 Ra8 draw
8 Rd8 draw
9 Re8 draw
10 Rf8 draw
11 Rh6 draw
12 Kb7 loss in 2 half-moves
13 Kb8 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Kd7 loss in 2 half-moves
16 Kd8 loss in 2 half-moves
17 Kg4 loss in 2 half-moves
18 Kg5 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh7 loss in 2 half-moves
21 Kg6 loss in 1 half-moves
22 Kh6 loss in 1 half-moves