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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Ra2 loss in 4 half-moves
3 Nb3 loss in 2 half-moves
4 Nb7 loss in 2 half-moves
5 Nc4 loss in 2 half-moves
6 Nc6 loss in 2 half-moves
7 Ra4 loss in 2 half-moves
8 Rb1 loss in 2 half-moves
9 Rc1 loss in 2 half-moves
10 Rd1 loss in 2 half-moves
11 Re1 loss in 2 half-moves
12 Rf1 loss in 2 half-moves
13 Rg1 loss in 2 half-moves
14 Rh1 loss in 2 half-moves