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

EGTB: win in 2 half-moves

# move score
1 Rc3 win in 1 half-moves
2 Rc4 win in 1 half-moves
3 Rc8 draw
4 Ka1 loss in 2 half-moves
5 Ka3 loss in 2 half-moves
6 Kb1 loss in 2 half-moves
7 Kb2 loss in 2 half-moves
8 Kb3 loss in 2 half-moves
9 Ra7 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rc2 loss in 2 half-moves
13 Rc6 loss in 2 half-moves
14 Rg7 loss in 2 half-moves
15 Rh7 loss in 2 half-moves
16 Rc5 loss in 1 half-moves
17 Rd7 loss in 1 half-moves
18 Re7 loss in 1 half-moves
19 Rf7 loss in 1 half-moves