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

EGTB: draw

# move score
1 Kd7 draw
2 Kd8 draw
3 Kf8 draw
4 Rb1 draw
5 Rb2 draw
6 Rb3 draw
7 Rb4 draw
8 Rb5 draw
9 Rb6 draw
10 Rb7 draw
11 Rc8 draw
12 Rd8 draw
13 Ke7 loss in 2 half-moves
14 Kf7 loss in 2 half-moves
15 Ra8 loss in 2 half-moves