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

EGTB: draw

# move score
1 Ka3 draw
2 Ka5 draw
3 Kb4 draw
4 Kb5 draw
5 Ra6 draw
6 Ra7 draw
7 Rb8 draw
8 Rc8 draw
9 Rd8 draw
10 Rh8 draw
11 Kb3 loss in 2 half-moves
12 Ra5 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rf8 loss in 2 half-moves
15 Rg8 loss in 2 half-moves