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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Kb3 draw
3 Kc3 draw
4 Kc5 draw
5 Rb1 draw
6 Rb2 draw
7 Rb3 draw
8 Kb5 loss in 6 half-moves
9 Kd3 loss in 4 half-moves
10 Ra4 loss in 4 half-moves
11 Kd4 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb8 loss in 2 half-moves