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

EGTB: draw

# move score
1 Kb5 draw
2 Kb6 draw
3 Ra7 draw
4 Ra8 draw
5 Rb6 draw
6 Rc6 draw
7 Rd6 draw
8 Re6 draw
9 Rf6 draw
10 Rg6 draw
11 Rh6 draw
12 Ka4 loss in 2 half-moves
13 Kb4 loss in 2 half-moves