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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Rf8 win in 1 half-moves
3 Rb5 draw
4 Ka6 loss in 2 half-moves
5 Ka8 loss in 2 half-moves
6 Kb6 loss in 2 half-moves
7 Kb7 loss in 2 half-moves
8 Ra8 loss in 2 half-moves
9 Rb2 loss in 2 half-moves
10 Rb3 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves