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