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

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 Ra8 win in 3 half-moves
3 Rd3 win in 3 half-moves
4 Rg3 win in 3 half-moves
5 Rh3 win in 5 half-moves
6 Kb1 loss in 4 half-moves
7 Kb2 loss in 4 half-moves
8 Kc2 loss in 4 half-moves
9 Kd1 loss in 4 half-moves
10 Kd2 loss in 4 half-moves
11 R1a2 loss in 4 half-moves
12 R3a2 loss in 4 half-moves
13 Ra4 loss in 4 half-moves
14 Ra6 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rc3 loss in 2 half-moves
19 Re3 loss in 2 half-moves
20 Rf3 loss in 2 half-moves