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

EGTB: win in 54 half-moves

# move score
1 Rb8 win in 53 half-moves
2 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Rc8 draw
6 Rd1 draw
7 Rd2 draw
8 Rd3 draw
9 Rd4 draw
10 Rd5 draw
11 Rd6 draw
12 Kd7 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Kf7 loss in 2 half-moves
15 Kf8 loss in 2 half-moves
16 Rd7 loss in 2 half-moves