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

EGTB: win in 2 half-moves

# move score
1 Kb8 win in 1 half-moves
2 Ka6 draw
3 Kb7 draw
4 Ra3 draw
5 Ra5 draw
6 Ra6 draw
7 Rb4 draw
8 Re4 draw
9 Kb6 loss in 2 half-moves
10 Ra1 loss in 2 half-moves
11 Ra2 loss in 2 half-moves
12 Rc4 loss in 2 half-moves
13 Rd4 loss in 2 half-moves
14 Rf4 loss in 2 half-moves
15 Rg4 loss in 2 half-moves
16 Rh4 loss in 2 half-moves
17 Ka8 loss in 1 half-moves