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 Rc8 win in 3 half-moves
3 Kb6 win in 5 half-moves
4 Rf6 win in 5 half-moves
5 Ra8 win in 11 half-moves
6 Ka1 draw
7 Ka2 draw
8 Kb2 draw
9 Kb4 draw
10 Kb5 draw
11 Kc1 draw
12 Kc2 draw
13 Kc4 draw
14 Kd4 draw
15 Kd5 draw
16 Kd6 draw
17 Rd8 draw
18 Re8 draw
19 Rf3 draw
20 Rf4 draw
21 Rf5 draw
22 Rf7 draw
23 Kc6 loss in 2 half-moves
24 Rf1 loss in 2 half-moves
25 Rf2 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves