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

EGTB: draw

# move score
1 Kb3 draw
2 Kb5 draw
3 Kc3 draw
4 Kc5 draw
5 Kd5 draw
6 Ra4 draw
7 Rb3 draw
8 Rb5 draw
9 Rb6 draw
10 Rb7 draw
11 Rb8 draw
12 Kd3 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Rb1 loss in 2 half-moves
15 Rb2 loss in 2 half-moves