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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Rb1 draw
3 Rb2 draw
4 Kc7 loss in 2 half-moves
5 Kd7 loss in 2 half-moves
6 Kd8 loss in 2 half-moves
7 Kf7 loss in 2 half-moves
8 Kf8 loss in 2 half-moves
9 Kg7 loss in 2 half-moves
10 Kh7 loss in 2 half-moves
11 Kh8 loss in 2 half-moves
12 Ra8 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
16 Rb6 loss in 2 half-moves
17 Rb7 loss in 2 half-moves