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 Kc6 draw
3 Kc8 draw
4 Kd6 draw
5 Kd8 draw
6 Ke6 draw
7 Ke8 draw
8 Rc3 draw
9 Rc5 draw
10 Rc6 draw
11 Rc8 draw
12 Ke7 loss in 4 half-moves
13 Ra7 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rc2 loss in 2 half-moves