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 f5 draw
3 Ra1 loss in 2 half-moves
4 Rb1 loss in 2 half-moves
5 Rc3 loss in 2 half-moves
6 Re1 loss in 2 half-moves
7 Rg1 loss in 2 half-moves
8 Rh1 loss in 2 half-moves
9 c4 loss in 1 half-moves
10 Rc2 loss in 1 half-moves
11 Rd1 loss in 1 half-moves
12 Rf1 loss in 1 half-moves