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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Kb7 win in 7 half-moves
3 Kd7 win in 7 half-moves
4 Ka5 draw
5 Ka6 draw
6 Ka7 draw
7 Kb5 draw
8 Kbc6 draw
9 Kbc7 draw
10 Rb8 draw
11 Rc8 draw
12 Rd7 draw
13 Rg8 draw
14 Rh8 draw
15 Kbc5 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kdc5 loss in 2 half-moves
18 Kdc6 loss in 2 half-moves
19 Kdc7 loss in 2 half-moves
20 Ke5 loss in 2 half-moves
21 Ke6 loss in 2 half-moves
22 Ke7 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rf8 loss in 2 half-moves