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