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

EGTB: win in 4 half-moves

# move score
1 Kb8 win in 3 half-moves
2 Kb7 win in 5 half-moves
3 Kd6 win in 5 half-moves
4 Re8 win in 5 half-moves
5 Kcc7 draw
6 Rf8 draw
7 Rg8 draw
8 Rh8 draw
9 Kc6 loss in 2 half-moves
10 Kdc7 loss in 2 half-moves
11 Ke6 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Ke8 loss in 2 half-moves