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

EGTB: win in 2 half-moves

# move score
1 Rc4 win in 1 half-moves
2 Ke4 draw
3 Ke5 draw
4 Ke6 draw
5 Kg5 draw
6 Kg6 draw
7 Ra4 draw
8 Rb4 draw
9 Rd4 draw
10 Re4 draw
11 Kf6 loss in 4 half-moves
12 Kg4 loss in 2 half-moves
13 Rf1 loss in 2 half-moves
14 Rf2 loss in 2 half-moves
15 Rf3 loss in 2 half-moves
16 Rg4 loss in 2 half-moves
17 Rh4 loss in 2 half-moves