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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Rb1 win in 3 half-moves
3 Kf1 win in 9 half-moves
4 Kf2 win in 9 half-moves
5 Ka2 draw
6 Ka4 draw
7 Kb4 draw
8 Kg2 draw
9 Kh1 draw
10 Kh2 draw
11 Ra6 draw
12 Rb2 draw
13 Rb3 draw
14 Rb4 draw
15 Rb5 draw
16 Rc6 draw
17 Rd6 draw
18 Re6 draw
19 Kb3 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rb8 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rg6 loss in 2 half-moves
24 Rh6 loss in 2 half-moves