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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kc5 win in 3 half-moves
3 Kd5 win in 3 half-moves
4 Rd4 win in 3 half-moves
5 Rg5 win in 3 half-moves
6 Rg7 win in 3 half-moves
7 Kb6 win in 5 half-moves
8 Kc7 win in 7 half-moves
9 Re4 win in 7 half-moves
10 Rf4 win in 7 half-moves
11 Rh4 win in 7 half-moves
12 Kd6 draw
13 Kd7 draw
14 Ra4 draw
15 Rg6 draw
16 Rg8 draw
17 Kb7 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rg2 loss in 2 half-moves
22 Rg3 loss in 2 half-moves