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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Rb4 win in 1 half-moves
3 Rb5 win in 1 half-moves
4 Kb8 draw
5 Kcc8 draw
6 Kcd8 draw
7 Rb3 draw
8 Kdc6 loss in 2 half-moves
9 Kdc8 loss in 2 half-moves
10 Ke6 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 Kb6 loss in 1 half-moves
14 Kcc6 loss in 1 half-moves
15 Kcd6 loss in 1 half-moves
16 Kdd6 loss in 1 half-moves
17 Kdd8 loss in 1 half-moves
18 Rb1 loss in 1 half-moves
19 Rb2 loss in 1 half-moves
20 Rb6 loss in 1 half-moves
21 Rb8 loss in 1 half-moves