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 Kg3 loss in 16 half-moves
3 Kg2 loss in 10 half-moves
4 Rg1 loss in 8 half-moves
5 Kg1 loss in 6 half-moves
6 Kh3 loss in 4 half-moves
7 Ra1 loss in 2 half-moves
8 Rc1 loss in 2 half-moves
9 Rd1 loss in 2 half-moves
10 Re1 loss in 2 half-moves
11 Rf1 loss in 2 half-moves