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 win in 5 half-moves
3 Kc8 win in 5 half-moves
4 Rc8 win in 5 half-moves
5 Kd7 draw
6 Rc2 draw
7 Rc4 draw
8 Rc6 draw
9 Rf5 draw
10 Ke7 loss in 2 half-moves
11 Ke8 loss in 2 half-moves
12 Ra5 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rc1 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rh5 loss in 2 half-moves