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

EGTB: win in 4 half-moves

# move score
1 Kh5 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 Rg6 win in 3 half-moves
4 Rh6 win in 5 half-moves
5 Kh2 draw
6 Ra6 draw
7 Rb1 draw
8 Rb7 draw
9 Rb8 draw
10 Rf6 draw
11 K3g3 loss in 2 half-moves
12 K3g4 loss in 2 half-moves
13 K4g3 loss in 2 half-moves
14 K4g4 loss in 2 half-moves
15 Kg2 loss in 2 half-moves
16 Kg5 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rd6 loss in 2 half-moves
22 Re6 loss in 2 half-moves