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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Rb1 draw
4 Rb2 draw
5 Rb6 draw
6 Rc3 draw
7 Rd3 draw
8 Re3 draw
9 Rf3 draw
10 Ke7 loss in 2 half-moves
11 Ke8 loss in 2 half-moves
12 Kff7 loss in 2 half-moves
13 Kfg7 loss in 2 half-moves
14 Kgf7 loss in 2 half-moves
15 Kgg7 loss in 2 half-moves
16 Kh7 loss in 2 half-moves
17 Kh8 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rh3 loss in 2 half-moves