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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Re1 loss in 4 half-moves
3 Rf1 loss in 4 half-moves
4 Rg1 loss in 4 half-moves
5 Rh1 loss in 4 half-moves
6 Ka2 loss in 2 half-moves
7 Ka4 loss in 2 half-moves
8 Ra2 loss in 2 half-moves
9 Rc1 loss in 2 half-moves
10 Rd1 loss in 2 half-moves
11 Kb2 loss in 1 half-moves
12 Kb3 loss in 1 half-moves
13 Kb4 loss in 1 half-moves