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

EGTB: win in 4 half-moves

# move score
1 Kab4 win in 3 half-moves
2 Rc8 win in 3 half-moves
3 Kb3 win in 5 half-moves
4 Kc5 win in 13 half-moves
5 Ka3 draw
6 Ka6 draw
7 Kaa5 draw
8 Kb6 draw
9 Kba5 draw
10 Kbb4 draw
11 Kc4 draw
12 Kc6 draw
13 Ra5 draw
14 Rb8 draw
15 Rd8 draw
16 Re8 draw
17 Rf8 draw
18 Ra6 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves