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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rd3 draw
3 Re3 draw
4 Rf3 draw
5 Rg1 draw
6 Rg2 draw
7 Rg4 draw
8 Rg8 draw
9 Rh3 draw
10 Ra3 loss in 2 half-moves
11 Rc3 loss in 2 half-moves
12 Rg5 loss in 2 half-moves
13 Rg6 loss in 2 half-moves
14 Rg7 loss in 2 half-moves