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 Ra8 draw
3 Rc5 draw
4 Rd5 draw
5 Re5 draw
6 Rg5 draw
7 Ka1 loss in 2 half-moves
8 Ka4 loss in 2 half-moves
9 Kaa2 loss in 2 half-moves
10 Kab2 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Kb4 loss in 2 half-moves
13 Kba2 loss in 2 half-moves
14 Kbb2 loss in 2 half-moves
15 Kc1 loss in 2 half-moves
16 Kc2 loss in 2 half-moves
17 Ra6 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rf5 loss in 2 half-moves
21 Rh5 loss in 2 half-moves