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

EGTB: win in 4 half-moves

# move score
1 Rc7 win in 3 half-moves
2 Rc8 win in 3 half-moves
3 Rf4 win in 3 half-moves
4 Bb6 win in 5 half-moves
5 Bb8 win in 5 half-moves
6 Be3 win in 5 half-moves
7 Bf2 win in 5 half-moves
8 Bg1 win in 5 half-moves
9 Rb4 win in 5 half-moves
10 Rc2 win in 5 half-moves
11 Rc3 win in 5 half-moves
12 Rc5 win in 5 half-moves
13 Rc6 win in 5 half-moves
14 Rd4 win in 5 half-moves
15 Re4 win in 5 half-moves
16 Rg4 win in 5 half-moves
17 Rh4 win in 5 half-moves
18 Bc5 loss in 2 half-moves
19 Bd4 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Rc1 loss in 2 half-moves