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

EGTB: win in 4 half-moves

# move score
1 b6 win in 3 half-moves
2 Re7 win in 3 half-moves
3 Rf3 win in 3 half-moves
4 Rb3 win in 7 half-moves
5 Rg3 win in 8 half-moves
6 Rh3 win in 8 half-moves
7 Re1 loss in 4 half-moves
8 Re2 loss in 4 half-moves
9 Re4 loss in 4 half-moves
10 Ra3 loss in 2 half-moves
11 Rc3 loss in 2 half-moves
12 Rd3 loss in 2 half-moves
13 Re5 loss in 2 half-moves
14 Re6 loss in 2 half-moves
15 Re8 loss in 2 half-moves