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 Nb4 loss in 2 half-moves
5 Nc1 loss in 2 half-moves
6 Nc3 loss in 2 half-moves
7 Rd8 loss in 2 half-moves
8 Re2 loss in 2 half-moves
9 Re3 loss in 2 half-moves
10 Re4 loss in 2 half-moves
11 Re7 loss in 2 half-moves
12 Rg8 loss in 2 half-moves
13 Rh8 loss in 2 half-moves
14 Re1 loss in 1 half-moves
15 Re5 loss in 1 half-moves
16 Re6 loss in 1 half-moves
17 Rf8 loss in 1 half-moves