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

EGTB: win in 6 half-moves

# move score
1 Ra6 win in 5 half-moves
2 Ka7 draw
3 Ka8 draw
4 Kbb7 draw
5 Kbc7 draw
6 Kc8 draw
7 Kd5 draw
8 Kd6 draw
9 Kd7 draw
10 Kb5 loss in 2 half-moves
11 Kc5 loss in 2 half-moves
12 Kcb7 loss in 2 half-moves
13 Kcc7 loss in 2 half-moves
14 Rb1 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb7 loss in 2 half-moves