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

EGTB: win in 4 half-moves

# move score
1 Ra1 win in 3 half-moves
2 Rd1 win in 3 half-moves
3 Ra8 draw
4 Rb3 draw
5 Rb4 draw
6 Rbb1 draw
7 Rd8 draw
8 Rf8 draw
9 Rgb1 draw
10 Rb2 loss in 3 half-moves
11 Rb5 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rc1 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Re1 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf1 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh8 loss in 2 half-moves