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 Kc6 draw
3 Kc7 draw
4 Kc8 draw
5 Kd6 draw
6 Kd8 draw
7 Ke6 draw
8 Ke7 draw
9 Ke8 draw
10 Ra2 draw
11 Ra3 draw
12 Ra4 draw
13 Ra5 draw
14 Ra7 draw
15 Rc8 draw
16 Rd8 draw
17 Rf8 draw
18 Rg8 draw
19 Ra1 loss in 2 half-moves
20 Ra6 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves