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 Rc5 draw
3 Rc6 draw
4 Rc7 draw
5 Rc8 draw
6 Rd1 draw
7 Re1 draw
8 Rg1 draw
9 Rh1 draw
10 Kf3 loss in 2 half-moves
11 Kf4 loss in 2 half-moves
12 Kf5 loss in 2 half-moves
13 Kgg3 loss in 2 half-moves
14 Kgg5 loss in 2 half-moves
15 Kgh3 loss in 2 half-moves
16 Kgh5 loss in 2 half-moves
17 Khg3 loss in 2 half-moves
18 Khg5 loss in 2 half-moves
19 Khh3 loss in 2 half-moves
20 Khh5 loss in 2 half-moves
21 Ra1 loss in 2 half-moves
22 Rb1 loss in 2 half-moves
23 Rc2 loss in 2 half-moves
24 Rc3 loss in 2 half-moves
25 Rc4 loss in 2 half-moves