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

EGTB: win in 8 half-moves

# move score
1 Ra4 win in 7 half-moves
2 R1a2 loss in 4 half-moves
3 R3a2 loss in 4 half-moves
4 Ra5 loss in 2 half-moves
5 Ra6 loss in 2 half-moves
6 Ra7 loss in 2 half-moves
7 Ra8 loss in 2 half-moves
8 Rb1 loss in 2 half-moves
9 Rb3 loss in 2 half-moves
10 Rc1 loss in 2 half-moves
11 Rc3 loss in 2 half-moves
12 Rd1 loss in 2 half-moves
13 Rd3 loss in 2 half-moves
14 Re1 loss in 2 half-moves
15 Re3 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rf3 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rg3 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh3 loss in 2 half-moves