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

EGTB: win in 6 half-moves

# move score
1 Ka6 win in 5 half-moves
2 Ra6 win in 5 half-moves
3 Kb6 win in 9 half-moves
4 K4b5 draw
5 K5b5 draw
6 Ka3 draw
7 Ra8 draw
8 Rg7 draw
9 K4b4 loss in 2 half-moves
10 K5b4 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rc7 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Re7 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rh7 loss in 2 half-moves