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

EGTB: win in 10 half-moves

# move score
1 Ra8 win in 9 half-moves
2 Ka4 draw
3 Ka6 draw
4 Kb4 draw
5 Kb5 draw
6 Kb6 draw
7 Kd7 draw
8 Kd8 draw
9 Kf7 draw
10 Kf8 draw
11 Rb8 draw
12 Rc1 draw
13 Rc2 draw
14 Rc6 draw
15 Rc7 draw
16 Rd8 draw
17 Ke7 loss in 2 half-moves
18 Rc3 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rc5 loss in 2 half-moves