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

EGTB: win in 4 half-moves

# move score
1 Rc1 win in 3 half-moves
2 Kf1 draw
3 Ra7 draw
4 Rb7 draw
5 Rc3 draw
6 Rc8 draw
7 Rd7 draw
8 Rh7 draw
9 Kf2 loss in 2 half-moves
10 Kgg2 loss in 2 half-moves
11 Kgh2 loss in 2 half-moves
12 Khg2 loss in 2 half-moves
13 Khh2 loss in 2 half-moves
14 Rc2 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves