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

EGTB: win in 8 half-moves

# move score
1 Rb8 win in 7 half-moves
2 Rf2 draw
3 Rh8 draw
4 K5a5 loss in 2 half-moves
5 K5a6 loss in 2 half-moves
6 K5c5 loss in 2 half-moves
7 K5c6 loss in 2 half-moves
8 K6a5 loss in 2 half-moves
9 K6a6 loss in 2 half-moves
10 K6c5 loss in 2 half-moves
11 K6c6 loss in 2 half-moves
12 Ka4 loss in 2 half-moves
13 Ka7 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Kb7 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kc7 loss in 2 half-moves
18 Ra8 loss in 2 half-moves
19 Rc8 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf1 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 Rf6 loss in 2 half-moves
27 Rf7 loss in 2 half-moves
28 Rg8 loss in 2 half-moves