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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Rc5 win in 1 half-moves
3 Rc7 win in 1 half-moves
4 Ra8 win in 3 half-moves
5 b7 loss in 2 half-moves
6 Rc1 loss in 2 half-moves
7 Rc2 loss in 2 half-moves
8 Rc3 loss in 2 half-moves
9 Rc4 loss in 2 half-moves
10 Rc6 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rf8 loss in 2 half-moves
14 Rg8 loss in 2 half-moves
15 Rh8 loss in 2 half-moves