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

EGTB: win in 4 half-moves

# move score
1 Ka4 win in 3 half-moves
2 Kb4 win in 3 half-moves
3 Rb4 win in 3 half-moves
4 Rb5 win in 3 half-moves
5 Ka6 draw
6 Ka7 draw
7 Ka8 draw
8 Kb5 draw
9 Kb6 draw
10 Kb7 draw
11 Ra3 draw
12 Rb1 draw
13 Rb2 draw
14 Rb6 draw
15 Rc3 draw
16 Rd3 draw
17 Rf3 draw
18 Rg3 draw
19 Kc7 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Rh3 loss in 2 half-moves