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

EGTB: win in 4 half-moves

# move score
1 Re1 win in 3 half-moves
2 Rf1 win in 3 half-moves
3 Kf8 win in 5 half-moves
4 Rh6 win in 5 half-moves
5 Rh7 win in 5 half-moves
6 Rh8 win in 5 half-moves
7 Kb7 draw
8 Kb8 draw
9 Kc7 draw
10 Kcd7 draw
11 Kcd8 draw
12 Ke8 draw
13 Ked7 draw
14 Ked8 draw
15 Kf7 draw
16 Ra1 draw
17 Rg1 draw
18 Rh5 draw
19 Kd6 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Kf6 loss in 2 half-moves
22 Rb1 loss in 2 half-moves
23 Rc1 loss in 2 half-moves
24 Rd1 loss in 2 half-moves
25 Rh2 loss in 2 half-moves
26 Rh3 loss in 2 half-moves
27 Rh4 loss in 2 half-moves