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

EGTB: win in 4 half-moves

# move score
1 Rgb1 win in 3 half-moves
2 Rb2 draw
3 Rb4 draw
4 Rb5 draw
5 Rb6 draw
6 Rbb1 draw
7 Rg3 draw
8 Rh1 draw
9 Rh3 draw
10 Ra1 loss in 2 half-moves
11 Ra3 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc1 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Re3 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rf3 loss in 2 half-moves