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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Ra7 draw
3 Rb3 draw
4 Rb4 draw
5 Kdc6 loss in 2 half-moves
6 Kdc8 loss in 2 half-moves
7 Ke6 loss in 2 half-moves
8 Ke7 loss in 2 half-moves
9 Ke8 loss in 2 half-moves
10 Kb6 loss in 1 half-moves
11 Kb8 loss in 1 half-moves
12 Kcc6 loss in 1 half-moves
13 Kcc8 loss in 1 half-moves
14 Kcd6 loss in 1 half-moves
15 Kcd8 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