Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rf5 win in 1 half-moves
2 Ka4 draw
3 Ka5 draw
4 Ka6 draw
5 Kb4 draw
6 Kb6 draw
7 Kc4 draw
8 Kc5 draw
9 Kc6 draw
10 Rc5 draw
11 Rd5 draw
12 Re3 draw
13 Re4 draw
14 Re6 draw
15 Re8 draw
16 Rh5 draw
17 Re1 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rg5 loss in 2 half-moves