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 K7b7 win in 7 half-moves
5 Ka5 win in 7 half-moves
6 Kb5 win in 7 half-moves
7 Ra8 win in 7 half-moves
8 Rc8 win in 7 half-moves
9 Rd8 win in 7 half-moves
10 K7b6 draw
11 Ka8 draw
12 Kb8 draw
13 Re1 draw
14 Re5 draw
15 Re6 draw
16 Re7 draw
17 Rf8 draw
18 Re2 loss in 2 half-moves
19 Re3 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves