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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 Kc7 draw
3 Ra7 draw
4 Rb1 draw
5 Rb3 draw
6 Rb4 draw
7 Rb5 draw
8 Rb8 draw
9 Rc7 draw
10 Kc8 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Ke8 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Kc6 loss in 1 half-moves
16 Kd6 loss in 1 half-moves
17 Ke6 loss in 1 half-moves