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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kb6 win in 3 half-moves
4 Rb8 win in 3 half-moves
5 Re8 win in 3 half-moves
6 Ra6 win in 7 half-moves
7 Kcc4 draw
8 Kcc6 draw
9 Kcd4 draw
10 Kcd6 draw
11 Kdc4 draw
12 Kdc6 draw
13 Kdd4 draw
14 Kdd6 draw
15 Ke6 draw
16 Ra1 draw
17 Ra5 draw
18 Ra7 draw
19 Rc8 draw
20 Rd8 draw
21 Ke4 loss in 2 half-moves
22 Ke5 loss in 2 half-moves
23 Ra2 loss in 2 half-moves
24 Ra3 loss in 2 half-moves
25 Ra4 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg8 loss in 2 half-moves
28 Rh8 loss in 2 half-moves