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

EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 K6a7 draw
3 K6b7 draw
4 K6c7 draw
5 K8a7 draw
6 K8b7 draw
7 K8c7 draw
8 Ka5 draw
9 Ka6 draw
10 Ka8 draw
11 Kb5 draw
12 Kc5 draw
13 Kc6 draw
14 Kc8 draw
15 Rd8 draw
16 Re8 draw
17 Rf3 draw
18 Rf1 loss in 2 half-moves
19 Rf2 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rf5 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves