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

EGTB: win in 4 half-moves

# move score
1 Rc7 win in 3 half-moves
2 Ra7 win in 5 half-moves
3 Rb7 win in 5 half-moves
4 Kb7 draw
5 Kb8 draw
6 Kc4 draw
7 Kc5 draw
8 Kc6 draw
9 Kc7 draw
10 Kd4 draw
11 Kd6 draw
12 Kd7 draw
13 Kd8 draw
14 Rd7 draw
15 Re7 draw
16 Rf1 draw
17 Rf8 draw
18 Ke4 loss in 2 half-moves
19 Ke5 loss in 2 half-moves
20 Ke6 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rf3 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rf5 loss in 2 half-moves
25 Rf6 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rh7 loss in 2 half-moves