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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Rc2 draw
3 Rc3 draw
4 Rc4 draw
5 Rc5 draw
6 K7d7 loss in 2 half-moves
7 K7d8 loss in 2 half-moves
8 K7f7 loss in 2 half-moves
9 K7f8 loss in 2 half-moves
10 K8d7 loss in 2 half-moves
11 K8d8 loss in 2 half-moves
12 K8f7 loss in 2 half-moves
13 K8f8 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Kf6 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rc1 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rc8 loss in 2 half-moves