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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 K6b6 win in 7 half-moves
3 K6b7 win in 7 half-moves
4 K6d6 win in 7 half-moves
5 K6d7 win in 7 half-moves
6 Kb5 win in 7 half-moves
7 Kb8 win in 7 half-moves
8 Kd8 win in 7 half-moves
9 Ra8 win in 7 half-moves
10 Rh8 win in 7 half-moves
11 K7d6 win in 9 half-moves
12 K7b6 draw
13 K7b7 draw
14 K7d7 draw
15 Rg8 draw
16 Kc5 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves