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

EGTB: draw

# move score
1 Kc7 draw
2 Kd7 draw
3 Ke7 draw
4 Rb8 draw
5 Rc1 draw
6 Rc2 draw
7 Rc4 draw
8 Rc5 draw
9 Rc7 draw
10 Ke8 loss in 4 half-moves
11 Ra8 loss in 2 half-moves
12 Rc3 loss in 2 half-moves
13 Rc6 loss in 2 half-moves