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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kg4 draw
3 Kg5 draw
4 Kh4 draw
5 Ra3 draw
6 Ra5 draw
7 Ra6 draw
8 Ra8 draw
9 Rh4 draw
10 Kg6 loss in 2 half-moves
11 Kh6 loss in 2 half-moves
12 Ra1 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves