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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Kc5 draw
3 Kc6 draw
4 Kd6 draw
5 Ke4 draw
6 Ke5 draw
7 Ke6 draw
8 Rc4 draw
9 Re4 draw
10 Rg4 draw
11 Rh4 draw
12 Kc4 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rd1 loss in 2 half-moves
16 Rd2 loss in 2 half-moves
17 Rd3 loss in 2 half-moves