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 Ka2 draw
3 Kb2 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Rc8 draw
8 Rd8 draw
9 Re8 draw
10 Rg8 draw
11 Rh8 draw
12 Ka1 loss in 2 half-moves
13 Kc1 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rf8 loss in 2 half-moves