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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kdc7 win in 3 half-moves
4 Kdd7 win in 3 half-moves
5 Ke7 win in 3 half-moves
6 Re5 win in 3 half-moves
7 Re7 win in 3 half-moves
8 Kd5 win in 7 half-moves
9 Kd6 win in 7 half-moves
10 Kcc7 win in 9 half-moves
11 Kcd7 win in 13 half-moves
12 Kb5 draw
13 Kc5 draw
14 Kc8 draw
15 Re3 draw
16 Re4 draw
17 Re6 draw
18 Rf8 draw
19 Rg8 draw
20 Rh8 draw
21 Re1 loss in 2 half-moves
22 Re2 loss in 2 half-moves