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 Ra7 draw
3 Rc1 draw
4 Rc5 draw
5 Rc6 draw
6 Rcc8 draw
7 Rcg7 draw
8 Rg6 draw
9 Rgg7 draw
10 Rh7 draw
11 Rh8 draw
12 Rb7 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc2 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd7 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf7 loss in 2 half-moves
22 Rf8 loss in 2 half-moves
23 Rg1 loss in 2 half-moves
24 Rg2 loss in 2 half-moves
25 Rg3 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rg5 loss in 2 half-moves
28 Rgc8 loss in 2 half-moves