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

EGTB: win in 2 half-moves

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