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

EGTB: win in 6 half-moves

# move score
1 Ra8 win in 5 half-moves
2 Rb8 win in 5 half-moves
3 K1b1 draw
4 K1b2 draw
5 K2b1 draw
6 K2b2 draw
7 Ka3 draw
8 Kb3 draw
9 Rc8 draw
10 Rg1 draw
11 Rg2 draw
12 Rg3 draw
13 Rg7 draw
14 Rh8 draw
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rg6 loss in 2 half-moves