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 Kb8 win in 3 half-moves
3 Kcc7 win in 5 half-moves
4 Kdc7 win in 5 half-moves
5 Ra8 win in 5 half-moves
6 Kcd8 win in 9 half-moves
7 Ra1 draw
8 Ra2 draw
9 Ra3 draw
10 Ra4 draw
11 Ra5 draw
12 Rb7 draw
13 Rc7 draw
14 Kc6 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kdd8 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Ke8 loss in 2 half-moves
20 Ra6 loss in 2 half-moves