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 Rc7 draw
3 Rd7 draw
4 Re7 draw
5 Rh2 draw
6 Rh4 draw
7 Rh5 draw
8 Rh6 draw
9 K5a6 loss in 2 half-moves
10 K5b6 loss in 2 half-moves
11 K7a6 loss in 2 half-moves
12 K7b6 loss in 2 half-moves
13 Ka4 loss in 2 half-moves
14 Ka8 loss in 2 half-moves
15 Kb4 loss in 2 half-moves
16 Kb5 loss in 2 half-moves
17 Kb7 loss in 2 half-moves
18 Kb8 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rh1 loss in 2 half-moves
22 Rh3 loss in 2 half-moves
23 Rh8 loss in 2 half-moves