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

EGTB: win in 2 half-moves

# move score
1 Rc8 win in 1 half-moves
2 Rb7 loss in 12 half-moves
3 Rc6 loss in 12 half-moves
4 Kb2 loss in 8 half-moves
5 Kb3 loss in 8 half-moves
6 Kb4 loss in 8 half-moves
7 Kc2 loss in 8 half-moves
8 Kc4 loss in 6 half-moves
9 Ra7 loss in 6 half-moves
10 Kd2 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Kd4 loss in 2 half-moves
13 Rc4 loss in 2 half-moves
14 Rc5 loss in 2 half-moves
15 Rd7 loss in 2 half-moves
16 Re7 loss in 2 half-moves
17 Rf7 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh7 loss in 1 half-moves