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 Kc5 draw
3 Kc6 draw
4 Kd4 draw
5 Ke4 draw
6 Ke5 draw
7 Re4 draw
8 Rf4 draw
9 Rg4 draw
10 Rh6 draw
11 Rh7 loss in 6 half-moves
12 Kd6 loss in 4 half-moves
13 Ke6 loss in 4 half-moves
14 Rh3 loss in 4 half-moves
15 Rh5 loss in 4 half-moves
16 Kc4 loss in 2 half-moves
17 Ra4 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rd4 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh2 loss in 2 half-moves
22 Rh8 loss in 1 half-moves