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

EGTB: win in 4 half-moves

# move score
1 Rf8 win in 3 half-moves
2 Rc1 draw
3 Rc4 draw
4 Rc5 draw
5 Rc6 draw
6 Rd8 draw
7 Re8 draw
8 Kf7 loss in 2 half-moves
9 Kf8 loss in 2 half-moves
10 Kg6 loss in 2 half-moves
11 Kgg7 loss in 2 half-moves
12 Kgh8 loss in 2 half-moves
13 Kh6 loss in 2 half-moves
14 Khg7 loss in 2 half-moves
15 Khh8 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rc2 loss in 2 half-moves
19 Rc3 loss in 2 half-moves
20 Rc7 loss in 2 half-moves