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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Kc7 draw
3 Kc8 draw
4 Kd8 draw
5 Ke7 draw
6 Ke8 draw
7 Ra1 draw
8 Ra5 draw
9 Ra6 draw
10 Ra8 draw
11 Rc7 draw
12 Kc6 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Ra2 loss in 2 half-moves
16 Ra3 loss in 2 half-moves
17 Ra4 loss in 2 half-moves