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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kc7 draw
5 Kcd7 draw
6 Kcd8 draw
7 Ke7 draw
8 Ked7 draw
9 Ked8 draw
10 Kf7 draw
11 Kf8 draw
12 Ra7 draw
13 Rc7 draw
14 Rd7 draw
15 Rg5 draw
16 Rg8 draw
17 Rh7 draw
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rg2 loss in 2 half-moves
22 Rg3 loss in 2 half-moves
23 Rg4 loss in 2 half-moves
24 Rg6 loss in 2 half-moves