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