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

EGTB: win in 6 half-moves

# move score
1 Ke7 win in 5 half-moves
2 Re1 draw
3 Re2 draw
4 Re3 draw
5 Kb6 loss in 2 half-moves
6 Kb7 loss in 2 half-moves
7 Kb8 loss in 2 half-moves
8 Kc6 loss in 2 half-moves
9 Kcc8 loss in 2 half-moves
10 Kcd7 loss in 2 half-moves
11 Kd6 loss in 2 half-moves
12 Kdc8 loss in 2 half-moves
13 Kdd7 loss in 2 half-moves
14 Re4 loss in 2 half-moves
15 Re5 loss in 2 half-moves
16 Re6 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves