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

EGTB: win in 4 half-moves

# move score
1 Rd1 win in 3 half-moves
2 Ka8 draw
3 Kb6 draw
4 Kb7 draw
5 Kb8 draw
6 Rb1 draw
7 Rb6 draw
8 Rc1 draw
9 Rc6 draw
10 Rd6 draw
11 Re1 draw
12 Re6 draw
13 Rf1 draw
14 Rf6 draw
15 R1a2 loss in 2 half-moves
16 R1a3 loss in 2 half-moves
17 R1a4 loss in 2 half-moves
18 R1a5 loss in 2 half-moves
19 R6a2 loss in 2 half-moves
20 R6a3 loss in 2 half-moves
21 R6a4 loss in 2 half-moves
22 R6a5 loss in 2 half-moves
23 Rg1 loss in 2 half-moves
24 Rg6 loss in 2 half-moves
25 Rh1 loss in 2 half-moves
26 Rh6 loss in 2 half-moves