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 Kc1 win in 3 half-moves
3 Ka1 win in 5 half-moves
4 Kb1 win in 5 half-moves
5 Ka3 draw
6 Kc2 draw
7 Kd1 draw
8 Ke1 draw
9 Ke2 draw
10 Rb1 draw
11 Rb7 draw
12 Kb3 loss in 2 half-moves
13 Kc3 loss in 2 half-moves
14 Kd3 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rc2 loss in 2 half-moves