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 Rb3 draw
3 Rc3 draw
4 Rd3 draw
5 Rg3 draw
6 K5a6 loss in 2 half-moves
7 K5b6 loss in 2 half-moves
8 K7a6 loss in 2 half-moves
9 K7b6 loss in 2 half-moves
10 Ka4 loss in 2 half-moves
11 Ka8 loss in 2 half-moves
12 Kb4 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Kb8 loss in 2 half-moves
16 Ra1 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rh3 loss in 2 half-moves