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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kc5 draw
3 Kc6 draw
4 Kc7 draw
5 Kd7 draw
6 Ke6 draw
7 Ke7 draw
8 Ra8 draw
9 Rc8 draw
10 Re8 draw
11 Rg8 draw
12 Rh8 draw
13 Kd5 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Rd7 loss in 2 half-moves
16 Rf8 loss in 2 half-moves