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

EGTB: win in 6 half-moves

# move score
1 Rc3 win in 5 half-moves
2 K5a6 draw
3 K7a6 draw
4 Ka4 draw
5 Ka8 draw
6 Kb8 draw
7 Ra1 draw
8 Ra2 draw
9 Rb3 draw
10 Re3 draw
11 Rh3 draw
12 K5b6 loss in 2 half-moves
13 K7b6 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kb7 loss in 2 half-moves
17 Ra4 loss in 2 half-moves
18 Rd3 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rg3 loss in 2 half-moves