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 Rb8 win in 3 half-moves
3 Ra5 win in 5 half-moves
4 Rb7 win in 9 half-moves
5 Ka6 draw
6 Ka8 draw
7 Kb7 draw
8 Kb8 draw
9 Kc7 draw
10 Kc8 draw
11 Kd8 draw
12 Ke7 draw
13 Ke8 draw
14 Rb1 draw
15 Rb6 draw
16 Rg5 draw
17 Kc6 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Ke6 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rb3 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rc5 loss in 2 half-moves
24 Rd5 loss in 2 half-moves
25 Re5 loss in 2 half-moves
26 Rf5 loss in 2 half-moves
27 Rh5 loss in 2 half-moves