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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Ra8 draw
3 Rb3 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Rc8 draw
8 Re8 draw
9 Rb1 loss in 18 half-moves
10 Rd8 loss in 8 half-moves
11 Rb2 loss in 2 half-moves
12 Rf8 loss in 2 half-moves
13 Rg8 loss in 2 half-moves
14 Rh8 loss in 2 half-moves
15 Nb1 loss in 1 half-moves
16 Nb5 loss in 1 half-moves
17 Nc2 loss in 1 half-moves
18 Nc4 loss in 1 half-moves