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