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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kc5 win in 7 half-moves
3 Kcd7 win in 7 half-moves
4 Kd5 win in 7 half-moves
5 Kdc6 win in 7 half-moves
6 Kdd7 win in 7 half-moves
7 Rc8 win in 7 half-moves
8 Kb6 draw
9 Kb7 draw
10 Kb8 draw
11 Kc8 draw
12 Kcc6 draw
13 Kd8 draw
14 Ra3 draw
15 Ra6 draw
16 Ra7 draw
17 Rd8 draw
18 Ke5 loss in 2 half-moves
19 Ke6 loss in 2 half-moves
20 Ke7 loss in 2 half-moves
21 Ra1 loss in 2 half-moves
22 Ra2 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Ra5 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh8 loss in 2 half-moves