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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Ra4 loss in 4 half-moves
3 Nb3 loss in 2 half-moves
4 Nb5 loss in 2 half-moves
5 Nc2 loss in 2 half-moves
6 Nc6 loss in 2 half-moves
7 Ne2 loss in 2 half-moves
8 Ne6 loss in 2 half-moves
9 Nf3 loss in 2 half-moves
10 Nf5 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rc2 loss in 2 half-moves
13 Rc3 loss in 2 half-moves
14 Rc5 loss in 2 half-moves
15 Rc6 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Rc8 loss in 2 half-moves