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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Kb2 win in 5 half-moves
3 Kd2 win in 5 half-moves
4 Ra8 win in 5 half-moves
5 Rb6 win in 5 half-moves
6 Rb7 win in 5 half-moves
7 Kd3 win in 7 half-moves
8 Ka1 draw
9 Kb3 draw
10 Kd4 draw
11 Ke4 draw
12 Rb1 draw
13 Rb4 draw
14 Rb5 draw
15 Re8 draw
16 Ka3 loss in 2 half-moves
17 Ke2 loss in 2 half-moves
18 Kf2 loss in 2 half-moves
19 Kf3 loss in 2 half-moves
20 Kf4 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rc8 loss in 2 half-moves
23 Rd8 loss in 2 half-moves
24 Rf8 loss in 2 half-moves
25 Rg8 loss in 2 half-moves
26 Rh8 loss in 2 half-moves
27 Kb1 loss in 1 half-moves