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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Kc3 draw
3 Kc4 draw
4 Kc5 draw
5 Kd3 draw
6 Kd5 draw
7 Ke4 draw
8 Kg1 draw
9 Kg2 draw
10 Kh2 draw
11 Ra8 draw
12 Rb8 draw
13 Rc8 draw
14 Rd5 draw
15 Rd6 draw
16 Rd7 draw
17 Re8 draw
18 Rf8 draw
19 Ke3 loss in 2 half-moves
20 Ke5 loss in 2 half-moves
21 Rh8 loss in 1 half-moves