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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 Rg8 win in 5 half-moves
4 Kg5 win in 7 half-moves
5 Rb6 win in 7 half-moves
6 Rh8 win in 7 half-moves
7 Ke5 win in 9 half-moves
8 Kd4 draw
9 Kd5 draw
10 Kf4 draw
11 Kf5 draw
12 Kg4 draw
13 Kg6 draw
14 Kh4 draw
15 Kh6 draw
16 Ra8 draw
17 Rb7 draw
18 Rc8 draw
19 Re8 draw
20 Kd3 loss in 2 half-moves
21 Ke3 loss in 2 half-moves
22 Kf3 loss in 2 half-moves
23 Rb1 loss in 2 half-moves
24 Rb2 loss in 2 half-moves
25 Rb3 loss in 2 half-moves
26 Rd8 loss in 2 half-moves
27 Rf8 loss in 2 half-moves