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 Rc8 win in 3 half-moves
3 Rf1 win in 3 half-moves
4 Rf2 win in 3 half-moves
5 Rf3 win in 3 half-moves
6 Rf4 win in 3 half-moves
7 Ba7 win in 5 half-moves
8 Bb6 win in 5 half-moves
9 Bf2 win in 5 half-moves
10 Bh2 win in 5 half-moves
11 Ra8 win in 5 half-moves
12 Rd8 win in 5 half-moves
13 Re8 win in 5 half-moves
14 Rh8 win in 5 half-moves
15 Rf5 draw
16 Rf6 draw
17 Rf7 draw
18 Bc5 loss in 2 half-moves
19 Bd4 loss in 2 half-moves
20 Be3 loss in 2 half-moves
21 Rg8 loss in 2 half-moves