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

EGTB: win in 4 half-moves

# move score
1 Re8 win in 3 half-moves
2 Kd5 draw
3 Ke3 draw
4 Ke4 draw
5 Ke5 draw
6 Rd6 draw
7 Rd7 draw
8 Rf8 draw
9 Rg8 draw
10 Rh8 draw
11 Kc3 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kd3 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd5 loss in 2 half-moves