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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Rb3 win in 3 half-moves
3 Rb4 win in 3 half-moves
4 Ka3 win in 5 half-moves
5 Kc2 win in 5 half-moves
6 Rb1 win in 5 half-moves
7 Kb3 win in 9 half-moves
8 Kb4 win in 9 half-moves
9 Kb5 win in 13 half-moves
10 Ka5 draw
11 Kc1 draw
12 Kc3 draw
13 Kd1 draw
14 Kd3 draw
15 Ke1 draw
16 Ke2 draw
17 Ke3 draw
18 Ra2 draw
19 Rc2 draw
20 Rb5 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb7 loss in 2 half-moves