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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kb3 draw
3 Kc3 draw
4 Kd2 draw
5 Kd3 draw
6 Rb1 draw
7 Kb1 loss in 14 half-moves
8 Kc1 loss in 12 half-moves
9 Kd1 loss in 12 half-moves
10 Ra2 loss in 12 half-moves
11 Rb3 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves