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

EGTB: win in 2 half-moves

# move score
1 c4 win in 1 half-moves
2 Rb8 loss in 4 half-moves
3 Rc8 loss in 4 half-moves
4 Rf7 loss in 4 half-moves
5 Ra8 loss in 2 half-moves
6 Rd8 loss in 2 half-moves
7 Re8 loss in 2 half-moves
8 Rf6 loss in 2 half-moves
9 Rg8 loss in 2 half-moves
10 Rh8 loss in 2 half-moves