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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Rb3 win in 3 half-moves
3 Ra5 draw
4 Ra6 draw
5 Ra7 draw
6 Ra8 draw
7 Rb5 draw
8 Rb6 draw
9 Rb7 draw
10 Rb8 draw
11 Rc2 draw
12 Nb1 loss in 2 half-moves
13 Nb3 loss in 2 half-moves
14 Nc4 loss in 2 half-moves
15 Ne4 loss in 2 half-moves
16 Nf1 loss in 2 half-moves
17 Nf3 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rb4 loss in 2 half-moves