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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rb3 win in 1 half-moves
3 Rb4 win in 1 half-moves
4 Rb5 win in 1 half-moves
5 Rb7 win in 1 half-moves
6 Rb8 win in 1 half-moves
7 Ka4 draw
8 Ka6 draw
9 Kab5 draw
10 Kb4 draw
11 Kb7 draw
12 Kc5 draw
13 Kc7 draw
14 Kcb5 draw
15 Kd5 draw
16 Kd6 draw
17 Kd7 draw
18 Ra6 draw
19 Rb1 loss in 1 half-moves