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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Kb3 loss in 14 half-moves
3 Ra2 loss in 14 half-moves
4 Kb1 loss in 12 half-moves
5 Ra3 loss in 12 half-moves
6 Rc1 loss in 12 half-moves
7 Kc2 loss in 8 half-moves
8 Ka2 loss in 6 half-moves
9 Kc3 loss in 6 half-moves
10 Rb1 loss in 6 half-moves
11 Ka3 loss in 4 half-moves
12 Kc1 loss in 4 half-moves
13 Ra4 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rd1 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rh1 loss in 2 half-moves