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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Kd6 draw
6 Kd7 draw
7 Kd8 draw
8 Ke6 draw
9 Ke8 draw
10 Kf6 draw
11 Kf7 draw
12 Kf8 draw
13 Rc1 draw
14 Rc2 draw
15 Rc4 draw
16 Rc5 draw
17 Rc6 draw
18 Rc8 draw
19 Ra7 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rc3 loss in 2 half-moves