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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Ka2 win in 5 half-moves
3 Rb2 win in 5 half-moves
4 Kd1 win in 7 half-moves
5 Kd2 win in 7 half-moves
6 Ke1 win in 9 half-moves
7 Ra8 win in 9 half-moves
8 Kd3 win in 11 half-moves
9 Ke3 win in 13 half-moves
10 Kb1 draw
11 Kb2 draw
12 Kf1 draw
13 Kf2 draw
14 Kf3 draw
15 Rb3 draw
16 Rb4 draw
17 Rc8 draw
18 Rh8 draw
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Rd8 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rf8 loss in 2 half-moves
25 Rg8 loss in 2 half-moves