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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kdc7 win in 7 half-moves
3 Kdd7 win in 7 half-moves
4 Ke7 win in 7 half-moves
5 Ke8 win in 7 half-moves
6 Rb1 win in 7 half-moves
7 Rb6 win in 7 half-moves
8 Kb7 draw
9 Kcc7 draw
10 Kcd7 draw
11 Ra8 draw
12 Rb2 draw
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves