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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rb5 draw
3 Rb6 draw
4 Rb7 draw
5 Rb8 draw
6 Kb2 loss in 2 half-moves
7 Kc2 loss in 2 half-moves
8 Ra1 loss in 2 half-moves
9 Rb2 loss in 2 half-moves
10 Rb3 loss in 2 half-moves
11 Kd1 loss in 1 half-moves
12 Kd2 loss in 1 half-moves