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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Ka5 win in 5 half-moves
3 Ka7 win in 5 half-moves
4 Kb5 win in 5 half-moves
5 Kb7 win in 5 half-moves
6 Kc7 win in 5 half-moves
7 Rf7 win in 5 half-moves
8 Rf8 win in 7 half-moves
9 Ra6 win in 11 half-moves
10 Ka3 draw
11 Ka8 draw
12 Kb3 draw
13 Kb4 draw
14 Kc8 draw
15 Rc6 draw
16 Rd6 draw
17 Re6 draw
18 Rf1 draw
19 Rf2 draw
20 Rf3 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rf5 loss in 2 half-moves
23 Rg6 loss in 2 half-moves
24 Rh6 loss in 2 half-moves