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 Ra2 draw
4 Ra3 draw
5 Ra4 draw
6 Ra5 draw
7 Ra6 draw
8 Rb1 draw
9 Rc1 draw
10 Rh1 draw
11 Kb6 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Rd1 loss in 2 half-moves
14 Re1 loss in 2 half-moves
15 Rf1 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Ka8 loss in 1 half-moves