Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Ka4 draw
3 Ka5 draw
4 Ka6 draw
5 Kb4 draw
6 Kb6 draw
7 Kc4 draw
8 Kc5 draw
9 Kc6 draw
10 Ra8 draw
11 Rb6 draw
12 Rc8 draw
13 Rd8 draw
14 Re8 draw
15 Rf8 draw
16 Rg8 loss in 2 half-moves
17 Rh8 loss in 2 half-moves