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

EGTB: win in 4 half-moves

# move score
1 Rc7 win in 3 half-moves
2 Ka6 draw
3 Kaa7 draw
4 Kab8 draw
5 Kb6 draw
6 Kba7 draw
7 Kbb8 draw
8 Kc6 draw
9 Kc7 draw
10 Kc8 draw
11 Rd7 draw
12 Rh2 draw
13 Rh6 draw
14 Rh8 draw
15 Re7 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rg7 loss in 2 half-moves
18 Rh1 loss in 2 half-moves
19 Rh3 loss in 2 half-moves
20 Rh4 loss in 2 half-moves
21 Rh5 loss in 2 half-moves