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 Rb6 draw
3 Rb7 draw
4 Rc8 draw
5 Rd8 loss in 4 half-moves
6 Re8 loss in 4 half-moves
7 Rf8 loss in 4 half-moves
8 Rg8 loss in 4 half-moves
9 Rh8 loss in 4 half-moves
10 Ka2 loss in 2 half-moves
11 Kb1 loss in 2 half-moves
12 Kb2 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Rb1 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 1 half-moves