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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Rb3 win in 3 half-moves
3 Rf7 win in 3 half-moves
4 Ra5 win in 5 half-moves
5 Rb5 win in 5 half-moves
6 Ra6 win in 7 half-moves
7 Rb6 win in 7 half-moves
8 Rd7 win in 7 half-moves
9 Kd5 win in 13 half-moves
10 Ke6 win in 15 half-moves
11 Kc5 win in 17 half-moves
12 Kc6 win in 17 half-moves
13 Ke5 win in 17 half-moves
14 Ra8 win in 17 half-moves
15 Rb8 win in 17 half-moves
16 Rc7 win in 17 half-moves
17 Ke7 win in 19 half-moves
18 Kd7 win in 21 half-moves
19 Kc7 win in 25 half-moves
20 Ra2 draw
21 Rb2 draw
22 Rg7 draw
23 Ra1 loss in 2 half-moves
24 Ra4 loss in 2 half-moves
25 Rb1 loss in 2 half-moves
26 Rb4 loss in 2 half-moves
27 Re7 loss in 2 half-moves
28 Rh7 loss in 2 half-moves