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 Rb2 win in 3 half-moves
5 Re2 win in 3 half-moves
6 Ra4 win in 5 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 Ra1 draw
16 Ra3 draw
17 Ra5 draw
18 Ra8 draw
19 Rc2 draw
20 Rd2 draw
21 Rf2 draw
22 Ke4 loss in 2 half-moves
23 Ke5 loss in 2 half-moves
24 Ke6 loss in 2 half-moves
25 Ra6 loss in 2 half-moves
26 Ra7 loss in 2 half-moves
27 Rg2 loss in 2 half-moves
28 Rh2 loss in 2 half-moves