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

EGTB: win in 4 half-moves

# move score
1 R1a5 win in 3 half-moves
2 Kc1 draw
3 R1a2 draw
4 R6a2 draw
5 R6a5 draw
6 Ra7 draw
7 Ra8 draw
8 Re6 draw
9 Rf6 draw
10 Ka2 loss in 2 half-moves
11 Kb2 loss in 2 half-moves
12 Kc2 loss in 2 half-moves
13 R1a3 loss in 2 half-moves
14 R1a4 loss in 2 half-moves
15 R6a3 loss in 2 half-moves
16 R6a4 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rh6 loss in 2 half-moves