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

EGTB: win in 4 half-moves

# move score
1 R5a3 win in 3 half-moves
2 Ra7 win in 3 half-moves
3 Rf1 win in 3 half-moves
4 Ke5 win in 5 half-moves
5 Re1 win in 5 half-moves
6 Ke4 win in 13 half-moves
7 Kc5 win in 15 half-moves
8 Rd1 win in 15 half-moves
9 Rb1 win in 17 half-moves
10 Rb5 win in 17 half-moves
11 Rc1 win in 17 half-moves
12 Rc5 win in 17 half-moves
13 Kd4 win in 19 half-moves
14 Kc4 win in 21 half-moves
15 Kc6 win in 21 half-moves
16 Kd6 win in 21 half-moves
17 Ke6 win in 21 half-moves
18 R1a2 loss in 2 half-moves
19 R1a3 loss in 2 half-moves
20 R1a4 loss in 2 half-moves
21 R5a2 loss in 2 half-moves
22 R5a4 loss in 2 half-moves
23 Ra6 loss in 2 half-moves
24 Ra8 loss in 2 half-moves
25 Rg1 loss in 2 half-moves
26 Rh1 loss in 2 half-moves