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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Re7 draw
3 Rf7 draw
4 Rg1 draw
5 Rg2 draw
6 Rg3 draw
7 Rg8 draw
8 Rh7 draw
9 Ra7 loss in 2 half-moves
10 Rc7 loss in 2 half-moves
11 Rd7 loss in 2 half-moves
12 Rg4 loss in 2 half-moves
13 Rg5 loss in 2 half-moves
14 Rg6 loss in 2 half-moves