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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rb2 win in 3 half-moves
3 Ra8 draw
4 Rb3 draw
5 Rb4 draw
6 Rb5 draw
7 Re8 draw
8 Rf8 draw
9 Rg8 draw
10 Kf1 loss in 2 half-moves
11 Kf2 loss in 2 half-moves
12 Kgg2 loss in 2 half-moves
13 Kgh2 loss in 2 half-moves
14 Khg2 loss in 2 half-moves
15 Khh2 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves