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 Ka4 draw
3 Ka6 draw
4 Kb5 draw
5 Ra4 draw
6 Rb1 draw
7 Rb2 draw
8 Rb3 draw
9 Rb8 draw
10 Rd4 draw
11 Rh4 draw
12 Kb6 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Rg4 loss in 2 half-moves