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

EGTB: draw

# move score
1 Kb4 draw
2 Kc4 draw
3 Kd4 draw
4 Kd5 draw
5 Rb1 draw
6 Rb2 draw
7 Rb3 draw
8 Rb4 draw
9 Rb6 draw
10 Kb6 loss in 2 half-moves
11 Kc6 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rb8 loss in 2 half-moves