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 Ka4 draw
3 Kb4 draw
4 Kb5 draw
5 Ra4 draw
6 Rb4 draw
7 Rd4 draw
8 Re1 draw
9 Re2 draw
10 Re5 draw
11 Re6 draw
12 Re7 draw
13 Rg4 draw
14 Rh4 draw
15 Ka6 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Re8 loss in 2 half-moves