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 Kc5 draw
3 Kd5 draw
4 Rb1 loss in 16 half-moves
5 Rb2 loss in 16 half-moves
6 Kb3 loss in 12 half-moves
7 Kc3 loss in 12 half-moves
8 Rb3 loss in 10 half-moves
9 Kb5 loss in 6 half-moves
10 Kd3 loss in 4 half-moves
11 Kd4 loss in 4 half-moves
12 Ra4 loss in 4 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves