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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Kg5 draw
3 Kg6 draw
4 Kg7 draw
5 Kh5 draw
6 Rc7 draw
7 Rd7 draw
8 Re7 draw
9 Rf7 draw
10 Rg7 draw
11 Ka1 loss in 1 half-moves
12 Ka3 loss in 1 half-moves
13 Kb1 loss in 1 half-moves
14 Kb2 loss in 1 half-moves
15 Kb3 loss in 1 half-moves
16 Ra7 loss in 1 half-moves
17 Rh8 loss in 1 half-moves