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 Kab2 win in 3 half-moves
3 Kab4 win in 3 half-moves
4 Kba2 win in 3 half-moves
5 Kbb2 win in 3 half-moves
6 Kc2 win in 3 half-moves
7 Rc8 win in 5 half-moves
8 Kaa4 draw
9 Kba4 draw
10 Kbb4 draw
11 Kc3 draw
12 Kc4 draw
13 Ra6 draw
14 Ra7 draw
15 Rb8 draw
16 Rd8 draw
17 Re8 draw
18 Ra4 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves