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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Kc6 draw
3 R1a2 draw
4 R6a2 draw
5 Rb1 draw
6 Rb6 draw
7 Rc1 draw
8 Rc6 draw
9 Rd1 draw
10 Re1 draw
11 Kc5 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kd5 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 R1a3 loss in 2 half-moves
19 R1a4 loss in 2 half-moves
20 R1a5 loss in 2 half-moves
21 R6a3 loss in 2 half-moves
22 R6a4 loss in 2 half-moves
23 R6a5 loss in 2 half-moves
24 Ra8 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves