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 Rb2 win in 3 half-moves
3 Ka2 win in 7 half-moves
4 Kb1 win in 7 half-moves
5 Kb2 win in 7 half-moves
6 Kd2 win in 7 half-moves
7 Kd3 win in 7 half-moves
8 Ke2 win in 7 half-moves
9 Kf3 win in 7 half-moves
10 Ra3 win in 7 half-moves
11 Kd4 draw
12 Ke4 draw
13 Kf2 draw
14 Kf4 draw
15 Rb4 draw
16 Rb5 draw
17 Rc3 draw
18 Rd3 draw
19 Rb6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rb8 loss in 2 half-moves