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

EGTB: win in 2 half-moves

# move score
1 Rd4 win in 1 half-moves
2 Kf5 draw
3 Kf6 draw
4 Kg6 draw
5 Kh5 draw
6 Kh6 draw
7 Ra1 draw
8 Ra3 draw
9 Ra5 draw
10 Ra6 draw
11 Ra7 draw
12 Ra8 draw
13 Rc4 draw
14 Re4 draw
15 Rf4 draw
16 Rh4 draw
17 Kf4 loss in 2 half-moves
18 Kg4 loss in 2 half-moves
19 Kh4 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Rb4 loss in 2 half-moves
22 Rg4 loss in 2 half-moves