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 Kf7 draw
3 Kf8 draw
4 Kg7 draw
5 Kh7 draw
6 Kh8 draw
7 Ra8 draw
8 Rc7 draw
9 Re8 draw
10 Rf8 draw
11 Rc6 loss in 4 half-moves
12 Rc1 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Rc3 loss in 1 half-moves
16 Rc4 loss in 1 half-moves
17 Rc5 loss in 1 half-moves