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

EGTB: win in 8 half-moves

# move score
1 Rb8 win in 7 half-moves
2 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kc7 draw
7 Kcd7 draw
8 Kd5 draw
9 Kd6 draw
10 Kd8 draw
11 Kf8 draw
12 Ra8 draw
13 Rd8 draw
14 Ke7 loss in 2 half-moves
15 Ked7 loss in 2 half-moves
16 Kf7 loss in 2 half-moves
17 Rc7 loss in 2 half-moves