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

EGTB: win in 4 half-moves

# move score
1 Re7 win in 3 half-moves
2 Kb6 win in 5 half-moves
3 Kc6 win in 7 half-moves
4 Kcd5 win in 7 half-moves
5 Kcd6 win in 7 half-moves
6 Rc8 win in 7 half-moves
7 Kb5 draw
8 Ke5 draw
9 Ke7 draw
10 Ra8 draw
11 Kb4 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Ked5 loss in 2 half-moves
16 Ked6 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Kf7 loss in 2 half-moves
20 Rb8 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Rf8 loss in 2 half-moves
23 Rg8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves