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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb3 draw
3 Rb7 draw
4 Rb8 draw
5 Re6 draw
6 Rf6 draw
7 Rg6 draw
8 Rh6 draw
9 Ka3 loss in 2 half-moves
10 Kaa1 loss in 2 half-moves
11 Kab2 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Kba1 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 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rd6 loss in 2 half-moves