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 Ka2 draw
3 Ka4 draw
4 Kb2 draw
5 Kb3 draw
6 Kb4 draw
7 Rc1 draw
8 Rc3 draw
9 Rc5 draw
10 Rd4 draw
11 Re4 draw
12 Rh4 draw
13 Ra4 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rc2 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rg4 loss in 2 half-moves