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 Rc8 draw
3 Kb5 loss in 10 half-moves
4 Kb7 loss in 10 half-moves
5 Kb6 loss in 8 half-moves
6 Ra8 loss in 4 half-moves
7 Rh8 loss in 4 half-moves
8 Ka5 loss in 2 half-moves
9 Ka7 loss in 2 half-moves
10 Rb2 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves