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 Kd7 draw
3 Rb7 loss in 20 half-moves
4 Kd8 loss in 16 half-moves
5 Kb8 loss in 12 half-moves
6 Kb7 loss in 8 half-moves
7 Ra7 loss in 4 half-moves
8 Rh7 loss in 4 half-moves
9 Rc1 loss in 2 half-moves
10 Rc2 loss in 2 half-moves
11 Rc4 loss in 2 half-moves
12 Rc5 loss in 2 half-moves
13 Rc6 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Re7 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rg7 loss in 2 half-moves