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 Kd5 draw
3 Kd7 draw
4 Ke5 draw
5 Ke6 draw
6 Ke7 draw
7 Ra8 draw
8 Rd8 draw
9 Re1 draw
10 Re2 draw
11 Re3 draw
12 Re4 draw
13 Re5 draw
14 Re6 draw
15 Re7 draw
16 Rf8 draw
17 Rg8 draw
18 Rh8 draw
19 Kc5 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Kc7 loss in 2 half-moves
22 Rc8 loss in 2 half-moves