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

EGTB: draw

# move score
1 Kc1 draw
2 Rb6 draw
3 Rb7 draw
4 Rb8 draw
5 Rc1 draw
6 Ke1 loss in 4 half-moves
7 Ra1 loss in 4 half-moves
8 Kc2 loss in 2 half-moves
9 Kd2 loss in 2 half-moves
10 Ke2 loss in 2 half-moves
11 Rb2 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves