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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kd1 draw
3 Kd8 draw
4 Kf1 draw
5 Kf8 draw
6 Ra8 draw
7 Rc1 draw
8 Rc6 draw
9 Rc7 draw
10 Rd8 draw
11 Kd2 loss in 2 half-moves
12 Kd7 loss in 2 half-moves
13 Ke2 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Kf2 loss in 2 half-moves
16 Kf7 loss in 2 half-moves
17 Rc2 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