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 Rd7 win in 3 half-moves
3 Re7 win in 3 half-moves
4 Ra1 win in 5 half-moves
5 Kc1 draw
6 Kc2 draw
7 Kd2 draw
8 Ke1 draw
9 Ke2 draw
10 Kg1 draw
11 Ra6 draw
12 Ra8 draw
13 Rb7 draw
14 Rf7 draw
15 Kg2 loss in 2 half-moves
16 Kh2 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rh7 loss in 2 half-moves