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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 K5a5 draw
3 K5a6 draw
4 K6a5 draw
5 K6a6 draw
6 Ka4 draw
7 Ka7 draw
8 Kb7 draw
9 Rb8 draw
10 Rg3 draw
11 Rg7 draw
12 Rh8 draw
13 K5c5 loss in 2 half-moves
14 K5c6 loss in 2 half-moves
15 K6c5 loss in 2 half-moves
16 K6c6 loss in 2 half-moves
17 Kb4 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Kc7 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rg5 loss in 2 half-moves
28 Rg6 loss in 2 half-moves