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