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 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kcc7 draw
7 Kcd7 draw
8 Kd5 draw
9 Kd6 draw
10 Kdc7 draw
11 Kdd7 draw
12 Ke7 draw
13 Ke8 draw
14 Rc7 draw
15 Ra8 loss in 1 half-moves