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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Kb7 draw
3 Kc6 draw
4 Kd7 draw
5 Ra8 draw
6 Rb6 draw
7 Rb7 draw
8 Rc8 draw
9 Rf8 draw
10 Rh8 draw
11 Kc8 loss in 8 half-moves
12 Kd6 loss in 6 half-moves
13 Kb6 loss in 4 half-moves
14 Kd8 loss in 4 half-moves
15 Rb4 loss in 4 half-moves
16 Rb5 loss in 4 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re8 loss in 2 half-moves