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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 K3a4 draw
3 K3b4 draw
4 K5a4 draw
5 K5b4 draw
6 Ka2 draw
7 Ka6 draw
8 Kb2 draw
9 Kb6 draw
10 Ra7 draw
11 Rb1 draw
12 Rb3 draw
13 Rb4 draw
14 Rb8 draw
15 Rg7 draw
16 Kb3 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rd7 loss in 2 half-moves
22 Re7 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rh7 loss in 2 half-moves