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 Rb5 win in 1 half-moves
3 Kc5 draw
4 Kc6 draw
5 Kc7 draw
6 Kd5 draw
7 Kd7 draw
8 Rb1 draw
9 Rb2 draw
10 Rb3 draw
11 Rc6 draw
12 Ke5 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves