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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Kd4 draw
3 Kd5 draw
4 Kd6 draw
5 Ke4 draw
6 Kf4 draw
7 Ra1 draw
8 Ra2 draw
9 Ra3 draw
10 Ra4 draw
11 Rc5 draw
12 Ke6 loss in 2 half-moves
13 Kf5 loss in 2 half-moves
14 Kf6 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Ra7 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rd5 loss in 2 half-moves