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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rb2 win in 3 half-moves
3 Rb3 win in 3 half-moves
4 Rb4 win in 3 half-moves
5 Ke5 draw
6 Rb5 draw
7 Rb8 draw
8 Kb7 loss in 2 half-moves
9 Kcc7 loss in 2 half-moves
10 Kcd7 loss in 2 half-moves
11 Kdc7 loss in 2 half-moves
12 Kdd7 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Kb5 loss in 1 half-moves
18 Kcc5 loss in 1 half-moves
19 Kcd5 loss in 1 half-moves
20 Kdc5 loss in 1 half-moves
21 Kdd5 loss in 1 half-moves