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

EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Kaa2 draw
3 Kab2 draw
4 Kba2 draw
5 Kbb2 draw
6 Kc1 draw
7 Kc2 draw
8 Rd8 draw
9 Re8 draw
10 Rf2 draw
11 Rf3 draw
12 Rf4 draw
13 Rg8 draw
14 Rh8 draw
15 Ra8 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rf7 loss in 2 half-moves