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 Kd6 draw
3 Ke6 draw
4 Kf6 draw
5 Ra7 draw
6 Rg4 draw
7 Kd4 loss in 2 half-moves
8 Kd5 loss in 2 half-moves
9 Ke4 loss in 2 half-moves
10 Kf4 loss in 2 half-moves
11 Kf5 loss in 2 half-moves
12 Ra1 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rd4 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves