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

EGTB: win in 2 half-moves

# move score
1 Rf8 win in 1 half-moves
2 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Rc3 draw
6 Rc4 draw
7 Rc5 draw
8 Rc7 draw
9 Rd8 draw
10 Re8 draw
11 Rh8 draw
12 Rb8 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rc2 loss in 2 half-moves
15 Rc6 loss in 2 half-moves
16 Rg8 loss in 2 half-moves