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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kc2 win in 5 half-moves
3 Kc3 win in 5 half-moves
4 Kc1 win in 7 half-moves
5 Rb8 win in 9 half-moves
6 Ka7 draw
7 Kb5 draw
8 Kd1 draw
9 Kd3 draw
10 Ke1 draw
11 Ke2 draw
12 Ke3 draw
13 Ra7 draw
14 Re8 draw
15 Kb7 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves
21 Ka5 loss in 1 half-moves