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 Rh7 win in 3 half-moves
3 Rh8 win in 3 half-moves
4 Ra5 win in 7 half-moves
5 Ka6 draw
6 Ka8 draw
7 Kb7 draw
8 Kb8 draw
9 Kc7 draw
10 Kc8 draw
11 Kd7 draw
12 Ke7 draw
13 Ke8 draw
14 Rb5 draw
15 Rf5 draw
16 Rg5 draw
17 Rh4 draw
18 Rh6 draw
19 Rc5 loss in 2 half-moves
20 Rd5 loss in 2 half-moves
21 Re5 loss in 2 half-moves
22 Rh1 loss in 2 half-moves
23 Rh2 loss in 2 half-moves
24 Rh3 loss in 2 half-moves