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

EGTB: draw

# move score
1 Kb5 draw
2 Ra3 draw
3 Ra6 draw
4 Rb5 draw
5 Ra7 loss in 6 half-moves
6 Ra8 loss in 6 half-moves
7 Kd5 loss in 4 half-moves
8 Kb4 loss in 2 half-moves
9 Kb6 loss in 2 half-moves
10 Kc4 loss in 2 half-moves
11 Kc6 loss in 2 half-moves
12 Kd4 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 Ra2 loss in 2 half-moves
16 Ra4 loss in 2 half-moves