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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Kb2 draw
5 Kc1 draw
6 Kc2 draw
7 Kc4 draw
8 Kc5 draw
9 Kc6 draw
10 Kd4 draw
11 Kd6 draw
12 Ke4 draw
13 Ra8 draw
14 Rc8 draw
15 Rd8 draw
16 Re8 draw
17 Rf3 draw
18 Rf7 draw
19 Ke5 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rf2 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rf5 loss in 2 half-moves
25 Rf6 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves