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

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Kd5 win in 1 half-moves
3 Rf8 win in 1 half-moves
4 Kb6 loss in 2 half-moves
5 Kb7 loss in 2 half-moves
6 Kcc7 loss in 2 half-moves
7 Kcd6 loss in 2 half-moves
8 Kd8 loss in 2 half-moves
9 Kdc7 loss in 2 half-moves
10 Kdd6 loss in 2 half-moves
11 Ke6 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Ke8 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rb8 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves
21 Kc5 loss in 1 half-moves