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

EGTB: win in 2 half-moves

# move score
1 Rc5 win in 1 half-moves
2 Rc6 win in 1 half-moves
3 Rf8 win in 1 half-moves
4 Rc4 draw
5 Ka6 loss in 2 half-moves
6 Ka8 loss in 2 half-moves
7 Kb6 loss in 2 half-moves
8 Kb7 loss in 2 half-moves
9 Kb8 loss in 2 half-moves
10 Ra8 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Rc1 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rc3 loss in 2 half-moves
15 Rc7 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves