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 Kc1 draw
3 Kd7 draw
4 Kd8 draw
5 Ke1 draw
6 Kf8 draw
7 Ra8 draw
8 Rc1 draw
9 Rc2 draw
10 Rc3 draw
11 Rc7 draw
12 Rd8 draw
13 Kc2 loss in 2 half-moves
14 Kd2 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Ke7 loss in 2 half-moves
17 Kf7 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves