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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 a3 loss in 2 half-moves
3 Ra3 loss in 2 half-moves
4 Rc2 loss in 2 half-moves
5 Re2 loss in 2 half-moves
6 Rg2 loss in 2 half-moves
7 Rh2 loss in 2 half-moves
8 Ra1 loss in 1 half-moves
9 Rd2 loss in 1 half-moves
10 Rf2 loss in 1 half-moves