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 Ra8 loss in 4 half-moves
4 Rd8 loss in 4 half-moves
5 Nb4 loss in 2 half-moves
6 Nc1 loss in 2 half-moves
7 Nc3 loss in 2 half-moves
8 Rf1 loss in 2 half-moves
9 Rf3 loss in 2 half-moves
10 Rf4 loss in 2 half-moves
11 Rf5 loss in 2 half-moves
12 Rf6 loss in 2 half-moves
13 Rg8 loss in 2 half-moves
14 Rh8 loss in 2 half-moves
15 Re8 loss in 1 half-moves
16 Rf2 loss in 1 half-moves
17 Rf7 loss in 1 half-moves