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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ka3 draw
3 Ka4 draw
4 Ka5 draw
5 Kb3 draw
6 Kb5 draw
7 Kc3 draw
8 Kc4 draw
9 Kc5 draw
10 Ke1 draw
11 Ke2 draw
12 Kf2 draw
13 Kg1 draw
14 Kg2 draw
15 Ra7 draw
16 Rc7 draw
17 Rd7 draw
18 Re7 draw
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rf7 loss in 2 half-moves
22 Rg7 loss in 2 half-moves
23 Rh7 loss in 2 half-moves