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 Rb4 win in 3 half-moves
3 Kc5 win in 5 half-moves
4 Rc4 win in 5 half-moves
5 Rf1 win in 5 half-moves
6 Rf2 win in 5 half-moves
7 Rf5 win in 5 half-moves
8 Rf6 win in 5 half-moves
9 Ka1 draw
10 Ka2 draw
11 Kb2 draw
12 Kb6 draw
13 Kb7 draw
14 Kc1 draw
15 Kc2 draw
16 Kc7 draw
17 Kd5 draw
18 Ra4 draw
19 Rd4 draw
20 Re4 draw
21 Rf3 draw
22 Kd6 loss in 2 half-moves
23 Kd7 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rf8 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rh4 loss in 2 half-moves