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 Kc1 draw
3 Kc2 draw
4 Kc3 draw
5 Kd1 draw
6 Kd3 draw
7 Ra2 draw
8 Ra3 draw
9 Ra5 draw
10 Ra6 draw
11 Ra7 draw
12 Re4 draw
13 Ke1 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Ra1 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves