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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Rb5 win in 3 half-moves
4 Rc5 draw
5 Rd5 draw
6 Re5 draw
7 Rf5 draw
8 Ka3 loss in 2 half-moves
9 Kb3 loss in 2 half-moves
10 Ra6 loss in 2 half-moves
11 Ra7 loss in 2 half-moves
12 Ra8 loss in 2 half-moves
13 Rg5 loss in 2 half-moves
14 Rh5 loss in 2 half-moves