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

EGTB: win in 2 half-moves

# move score
1 Kb7 win in 1 half-moves
2 Kb8 draw
3 Ra2 draw
4 Ra3 draw
5 Ra4 draw
6 Ra5 draw
7 Ra7 draw
8 Rb1 draw
9 Ra6 loss in 2 half-moves
10 Rd1 loss in 2 half-moves
11 Re1 loss in 2 half-moves
12 Rf1 loss in 2 half-moves
13 Rg1 loss in 2 half-moves
14 Rh1 loss in 2 half-moves
15 Ka7 loss in 1 half-moves
16 Rc1 loss in 1 half-moves