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

EGTB: win in 2 half-moves

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