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 Kb4 win in 5 half-moves
3 Kb5 win in 7 half-moves
4 Ra8 draw
5 Rb1 draw
6 Rb2 draw
7 Ka3 loss in 2 half-moves
8 Ka5 loss in 2 half-moves
9 Kb3 loss in 2 half-moves
10 Kc7 loss in 2 half-moves
11 Kd7 loss in 2 half-moves
12 Kd8 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