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 Rb1 draw
3 Rb2 draw
4 Rb6 draw
5 Rb8 draw
6 Re3 draw
7 Rg3 draw
8 Rh3 draw
9 Ka7 loss in 2 half-moves
10 Kab7 loss in 2 half-moves
11 Kab8 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kcb7 loss in 2 half-moves
14 Kcb8 loss in 2 half-moves
15 Kd7 loss in 2 half-moves
16 Kd8 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rc3 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Rf3 loss in 2 half-moves