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

EGTB: win in 4 half-moves

# move score
1 R1a2 win in 3 half-moves
2 R1a3 win in 3 half-moves
3 R4a2 win in 3 half-moves
4 R4a3 win in 3 half-moves
5 Ra7 win in 3 half-moves
6 Rd4 win in 3 half-moves
7 Rf4 win in 3 half-moves
8 Rg4 win in 3 half-moves
9 Ra5 win in 5 half-moves
10 Ra6 win in 5 half-moves
11 Rb1 win in 5 half-moves
12 Rb4 win in 5 half-moves
13 Re4 win in 5 half-moves
14 Na2 loss in 2 half-moves
15 Nb3 loss in 2 half-moves
16 Nd3 loss in 2 half-moves
17 Ne2 loss in 2 half-moves
18 Ra8 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rh4 loss in 2 half-moves