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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rd8 win in 3 half-moves
3 Kb4 win in 5 half-moves
4 Kb5 win in 5 half-moves
5 Kb7 win in 5 half-moves
6 Kb8 win in 5 half-moves
7 Kc4 win in 5 half-moves
8 Kd4 win in 5 half-moves
9 Kd5 win in 5 half-moves
10 Kd7 win in 5 half-moves
11 Ra8 win in 5 half-moves
12 Re8 win in 5 half-moves
13 Rf8 win in 5 half-moves
14 K5b6 win in 7 half-moves
15 K5c6 win in 7 half-moves
16 K5d6 win in 7 half-moves
17 Kd8 win in 7 half-moves
18 K7b6 draw
19 K7c6 draw
20 K7d6 draw
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves