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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Ka4 draw
4 Ka6 draw
5 Ka7 draw
6 Kb4 draw
7 Kb5 draw
8 Kb6 draw
9 Kb7 draw
10 Kb8 draw
11 Ra2 draw
12 Rb1 draw
13 Rb6 draw
14 Rc2 draw
15 Rg2 draw
16 Rb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rh2 loss in 2 half-moves