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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Rb7 win in 3 half-moves
3 Ka2 win in 5 half-moves
4 Ka5 win in 5 half-moves
5 Ka6 draw
6 Ka7 draw
7 Kb1 draw
8 Kb2 draw
9 Kb7 draw
10 Kc5 draw
11 Kc6 draw
12 Kc7 draw
13 Rc7 draw
14 Rd7 draw
15 Re3 draw
16 Re4 draw
17 Re5 draw
18 Re6 draw
19 Re8 draw
20 Kb5 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg7 loss in 2 half-moves
25 Rh7 loss in 2 half-moves