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