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 Kb3 draw
4 Kb4 draw
5 Kb5 draw
6 Rb4 draw
7 Rc4 draw
8 Rd4 draw
9 Re3 draw
10 Ka5 loss in 6 half-moves
11 Re1 loss in 4 half-moves
12 Re7 loss in 4 half-moves
13 Re5 loss in 2 half-moves
14 Re6 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rg4 loss in 2 half-moves
17 Rh4 loss in 2 half-moves
18 Re2 loss in 1 half-moves