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 Kb2 win in 5 half-moves
4 Kc2 win in 5 half-moves
5 Kc4 win in 5 half-moves
6 Kd4 win in 5 half-moves
7 Ka1 draw
8 Ka2 draw
9 Kc1 draw
10 Kc5 draw
11 Kc6 draw
12 Kd6 draw
13 Ke5 draw
14 Ke6 draw
15 Ra8 draw
16 Rd8 draw
17 Re3 draw
18 Re4 draw
19 Re5 draw
20 Re6 draw
21 Re7 draw
22 Rf8 draw
23 Ke4 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Re2 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves