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

EGTB: win in 4 half-moves

# move score
1 Ka7 win in 3 half-moves
2 Re8 win in 5 half-moves
3 Kb7 draw
4 Kb8 draw
5 Kd4 draw
6 Rc6 draw
7 Re7 draw
8 Kd5 loss in 2 half-moves
9 Kd6 loss in 2 half-moves
10 Ke4 loss in 2 half-moves
11 Kf4 loss in 2 half-moves
12 Kf5 loss in 2 half-moves
13 Kf6 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rd6 loss in 2 half-moves
17 Rf6 loss in 2 half-moves
18 Rg6 loss in 2 half-moves
19 Rh6 loss in 2 half-moves