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 Ka3 draw
3 Ka5 draw
4 Kab3 draw
5 Kab4 draw
6 Kab5 draw
7 Kc3 draw
8 Kc5 draw
9 Kcb3 draw
10 Kcb4 draw
11 Kcb5 draw
12 Ra8 draw
13 Rb8 draw
14 Rc8 draw
15 Re8 draw
16 Rf1 draw
17 Rf2 draw
18 Rf6 draw
19 Rf7 draw
20 Kd3 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Kd5 loss in 2 half-moves
23 Rf3 loss in 2 half-moves
24 Rf4 loss in 2 half-moves
25 Rf5 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves