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 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Ra8 draw
6 Rb1 draw
7 Rb2 draw
8 Rc8 draw
9 Rd8 draw
10 Re8 draw
11 Rf8 draw
12 Rg8 draw
13 Rh8 draw
14 Ka5 loss in 2 half-moves
15 Ka7 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves