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

EGTB: win in 4 half-moves

# move score
1 Rc7 win in 3 half-moves
2 Kc7 loss in 8 half-moves
3 Kc6 loss in 2 half-moves
4 Kc8 loss in 2 half-moves
5 Kd6 loss in 2 half-moves
6 Kd8 loss in 2 half-moves
7 Ke6 loss in 2 half-moves
8 Ke7 loss in 2 half-moves
9 Ke8 loss in 2 half-moves
10 Nb4 loss in 2 half-moves
11 Nb8 loss in 2 half-moves
12 Nc5 loss in 2 half-moves
13 Nc7 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rb7 loss in 2 half-moves