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