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

EGTB: win in 4 half-moves

# move score
1 Kaa2 win in 3 half-moves
2 Kaa4 draw
3 Kba2 draw
4 Kba4 draw
5 Kbb4 draw
6 Ra4 draw
7 Ra5 draw
8 Ra6 draw
9 Ra8 draw
10 Rb7 draw
11 Kab2 loss in 2 half-moves
12 Kab4 loss in 2 half-moves
13 Kbb2 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rh7 loss in 2 half-moves