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

EGTB: win in 2 half-moves

# move score
1 Rh4 win in 1 half-moves
2 Ka3 draw
3 Ka4 draw
4 Ka5 draw
5 Kb5 draw
6 Kc4 draw
7 Kc5 draw
8 Rf3 draw
9 Rf5 draw
10 Rf6 draw
11 Rf7 draw
12 Rf8 draw
13 Kb3 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Rf1 loss in 2 half-moves
19 Rf2 loss in 2 half-moves
20 Rg4 loss in 2 half-moves