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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 Rg7 win in 5 half-moves
3 Rg8 win in 11 half-moves
4 Re6 draw
5 Rh6 draw
6 Ra6 loss in 2 half-moves
7 Rc6 loss in 2 half-moves
8 Rd6 loss in 2 half-moves
9 Rf6 loss in 2 half-moves
10 Rg1 loss in 2 half-moves
11 Rg2 loss in 2 half-moves
12 Rg3 loss in 2 half-moves
13 Rg4 loss in 2 half-moves
14 Rg5 loss in 2 half-moves
15 b6 loss in 1 half-moves