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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Ra4 loss in 12 half-moves
3 Kf2 loss in 10 half-moves
4 Kh2 loss in 10 half-moves
5 Kh3 loss in 10 half-moves
6 Rc2 loss in 10 half-moves
7 Kf1 loss in 8 half-moves
8 Ra1 loss in 8 half-moves
9 Ra3 loss in 8 half-moves
10 Kg1 loss in 6 half-moves
11 Kh1 loss in 6 half-moves
12 Ra7 loss in 4 half-moves
13 Kf3 loss in 2 half-moves
14 Kg3 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Rd2 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Rf2 loss in 2 half-moves
20 Ra8 loss in 1 half-moves