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

EGTB: win in 6 half-moves

# move score
1 Rb1 win in 5 half-moves
2 Rb2 win in 5 half-moves
3 Ra8 draw
4 Rb3 draw
5 Rb4 draw
6 Rb5 draw
7 Rd8 draw
8 Re8 draw
9 Rf8 draw
10 Ke1 loss in 2 half-moves
11 Ke2 loss in 2 half-moves
12 Kf2 loss in 2 half-moves
13 Kfg1 loss in 2 half-moves
14 Kfg2 loss in 2 half-moves
15 Kh2 loss in 2 half-moves
16 Khg1 loss in 2 half-moves
17 Khg2 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves