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 Ka3 draw
3 Ka4 draw
4 Kb3 draw
5 Kc3 draw
6 Kc4 draw
7 Rc4 draw
8 Rd4 draw
9 Re1 draw
10 Re2 draw
11 Re5 draw
12 Rg4 draw
13 Rh4 draw
14 Ka5 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kc5 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Re8 loss in 2 half-moves