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 K4g4 draw
3 K4g5 draw
4 K5g4 draw
5 K5g5 draw
6 Ke3 draw
7 Kf3 draw
8 Kf6 draw
9 Kg6 draw
10 Ra8 draw
11 Rh8 draw
12 K4e4 loss in 2 half-moves
13 K4e5 loss in 2 half-moves
14 K5e4 loss in 2 half-moves
15 K5e5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Kg3 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rc8 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rf7 loss in 2 half-moves