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 Rd8 draw
3 Ka3 loss in 2 half-moves
4 Ka5 loss in 2 half-moves
5 Kb3 loss in 2 half-moves
6 Kb4 loss in 2 half-moves
7 Kb5 loss in 2 half-moves
8 Ra8 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb3 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rg8 loss in 2 half-moves
17 Re8 loss in 1 half-moves
18 Rf8 loss in 1 half-moves
19 Rh8 loss in 1 half-moves