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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kd6 loss in 12 half-moves
3 Ke7 loss in 12 half-moves
4 Rd8 loss in 12 half-moves
5 Rg8 loss in 12 half-moves
6 Kc6 loss in 10 half-moves
7 Kc7 loss in 8 half-moves
8 Kc8 loss in 8 half-moves
9 Rh6 loss in 8 half-moves
10 Ke6 loss in 6 half-moves
11 Kd8 loss in 4 half-moves
12 Ke8 loss in 4 half-moves
13 Rh5 loss in 4 half-moves
14 Rh7 loss in 4 half-moves
15 Ra8 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rh1 loss in 2 half-moves
20 Rh2 loss in 2 half-moves
21 Rh3 loss in 2 half-moves
22 Rh4 loss in 2 half-moves