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

EGTB: win in 2 half-moves

# move score
1 Ra1 win in 1 half-moves
2 Rb6 draw
3 Rb7 draw
4 Rb8 draw
5 Kb2 loss in 2 half-moves
6 Kcc2 loss in 2 half-moves
7 Kcd2 loss in 2 half-moves
8 Kdc2 loss in 2 half-moves
9 Kdd2 loss in 2 half-moves
10 Ke1 loss in 2 half-moves
11 Ke2 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves