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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Rb1 win in 3 half-moves
3 Rc8 win in 3 half-moves
4 Rd8 win in 5 half-moves
5 Ra8 draw
6 Rb7 draw
7 Rg8 draw
8 Rh8 draw
9 Rb2 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rb5 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rf8 loss in 2 half-moves