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

EGTB: win in 4 half-moves

# move score
1 Kg5 win in 3 half-moves
2 Kh5 win in 3 half-moves
3 Rb5 win in 3 half-moves
4 K8h7 draw
5 Ra4 draw
6 Rb1 draw
7 Rb2 draw
8 Rb3 draw
9 Rb6 draw
10 Rc4 draw
11 Rh4 draw
12 K6g7 loss in 2 half-moves
13 K6h7 loss in 2 half-moves
14 K8g7 loss in 2 half-moves
15 Kg6 loss in 2 half-moves
16 Kg8 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rd4 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rg4 loss in 2 half-moves