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

EGTB: win in 4 half-moves

# move score
1 R5a4 win in 3 half-moves
2 Kf1 draw
3 Kf2 draw
4 Kg2 draw
5 Kh1 draw
6 Kh2 draw
7 R1a2 draw
8 R1a3 draw
9 R1a4 draw
10 R5a3 draw
11 Rb1 draw
12 Rc1 draw
13 Rc5 draw
14 Rd1 draw
15 Re1 draw
16 Re5 draw
17 Rf1 draw
18 Rf5 draw
19 R5a2 loss in 6 half-moves
20 Ra6 loss in 2 half-moves
21 Ra7 loss in 2 half-moves
22 Ra8 loss in 2 half-moves
23 Rb5 loss in 2 half-moves
24 Rd5 loss in 2 half-moves
25 Rg5 loss in 2 half-moves
26 Rh5 loss in 2 half-moves