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

EGTB: win in 4 half-moves

# move score
1 Rd8 win in 3 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kab5 draw
5 Kab6 draw
6 Kab7 draw
7 Kc5 draw
8 Kc7 draw
9 Kcb5 draw
10 Kcb6 draw
11 Kcb7 draw
12 Ra8 draw
13 Rb8 draw
14 Rc8 draw
15 Re8 draw
16 Rf1 draw
17 Rf2 draw
18 Rf3 draw
19 Rf4 draw
20 Kd5 loss in 2 half-moves
21 Kd6 loss in 2 half-moves
22 Kd7 loss in 2 half-moves
23 Rf5 loss in 2 half-moves
24 Rf6 loss in 2 half-moves
25 Rf7 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves