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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Nb7 win in 3 half-moves
3 Rb6 win in 5 half-moves
4 R8a7 loss in 8 half-moves
5 R6a7 loss in 4 half-moves
6 Nb3 loss in 2 half-moves
7 Nc4 loss in 2 half-moves
8 Nc6 loss in 2 half-moves
9 Rc6 loss in 2 half-moves
10 Rc8 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re6 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rf6 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rg6 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves
19 Rd6 loss in 1 half-moves
20 Rh6 loss in 1 half-moves