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

EGTB: win in 4 half-moves

# move score
1 Rd8 win in 3 half-moves
2 Ka1 draw
3 Kb1 draw
4 Kb2 draw
5 Kb3 draw
6 Rb3 draw
7 Rb8 draw
8 Rc3 draw
9 Rc8 draw
10 Rd3 draw
11 Re3 draw
12 Re8 draw
13 Rf3 draw
14 Rf8 draw
15 R3a4 loss in 2 half-moves
16 R3a5 loss in 2 half-moves
17 R3a6 loss in 2 half-moves
18 R3a7 loss in 2 half-moves
19 R8a4 loss in 2 half-moves
20 R8a5 loss in 2 half-moves
21 R8a6 loss in 2 half-moves
22 R8a7 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh3 loss in 2 half-moves
26 Rh8 loss in 2 half-moves