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

EGTB: win in 6 half-moves

# move score
1 Rb8 win in 5 half-moves
2 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Kd7 draw
6 Kd8 draw
7 Ke7 draw
8 Kf7 draw
9 Kf8 draw
10 Rc1 draw
11 Rc5 draw
12 Rc6 draw
13 Rc7 draw
14 Rc2 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd8 loss in 2 half-moves