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

EGTB: draw

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