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

EGTB: win in 4 half-moves

# move score
1 Rf4 win in 3 half-moves
2 Kg4 draw
3 Kg5 draw
4 Kg6 draw
5 Ra7 draw
6 Ra8 draw
7 Rg4 draw
8 Kd1 loss in 2 half-moves
9 Kd2 loss in 2 half-moves
10 Ke2 loss in 2 half-moves
11 Ke4 loss in 2 half-moves
12 Ke5 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Kf1 loss in 2 half-moves
15 Kf2 loss in 2 half-moves
16 Kf4 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Ra3 loss in 2 half-moves
21 Ra5 loss in 2 half-moves
22 Ra6 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rc4 loss in 2 half-moves
25 Rd4 loss in 2 half-moves
26 Re4 loss in 2 half-moves
27 Rh4 loss in 2 half-moves