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

EGTB: win in 4 half-moves

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