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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Kb7 draw
3 Ke4 draw
4 Ke5 draw
5 Ke6 draw
6 Kf4 draw
7 Kf6 draw
8 Kg4 draw
9 Kg5 draw
10 Kg6 draw
11 Rb7 draw
12 Rd8 draw
13 Re8 draw
14 Rf8 draw
15 Rh8 draw
16 Ka5 loss in 2 half-moves
17 Ka6 loss in 2 half-moves
18 Ka7 loss in 2 half-moves
19 Kb5 loss in 2 half-moves
20 Kc5 loss in 2 half-moves
21 Kc6 loss in 2 half-moves
22 Kc7 loss in 2 half-moves
23 Ra8 loss in 2 half-moves
24 Rc8 loss in 2 half-moves