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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 K5a6 draw
3 Ra3 draw
4 Rd2 draw
5 Re2 draw
6 Rf2 draw
7 Rh2 draw
8 Ka4 loss in 2 half-moves
9 Ka8 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kb8 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rc2 loss in 2 half-moves
17 Rg2 loss in 2 half-moves
18 K5b6 loss in 1 half-moves
19 K7a6 loss in 1 half-moves
20 K7b6 loss in 1 half-moves