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

EGTB: win in 4 half-moves

# move score
1 Ra6 win in 3 half-moves
2 K4b4 draw
3 K4b5 draw
4 K5b4 draw
5 K5b5 draw
6 Ka6 draw
7 Kb6 draw
8 Ra7 draw
9 Re8 draw
10 Ka3 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Rb8 loss in 2 half-moves
13 Rc8 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rg8 loss in 2 half-moves
17 Rh8 loss in 2 half-moves