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

EGTB: win in 4 half-moves

# move score
1 Rf7 win in 3 half-moves
2 Rf8 win in 3 half-moves
3 Rb2 draw
4 Rc2 draw
5 Rd2 draw
6 Rf1 draw
7 Rf5 draw
8 Rf6 draw
9 Rg2 draw
10 Kaa7 loss in 2 half-moves
11 Kab7 loss in 2 half-moves
12 Kba7 loss in 2 half-moves
13 Kbb7 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Kc8 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Re2 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rh2 loss in 2 half-moves