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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb6 win in 5 half-moves
3 Rb7 win in 9 half-moves
4 Rb8 win in 13 half-moves
5 Kg4 draw
6 Kg6 draw
7 Kh4 draw
8 Kh6 draw
9 Ra3 draw
10 Rb4 draw
11 Rh3 draw
12 Kc5 loss in 2 half-moves
13 Kc6 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Kd7 loss in 2 half-moves
17 Ke5 loss in 2 half-moves
18 Ke6 loss in 2 half-moves
19 Ke7 loss in 2 half-moves
20 Kg5 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rc3 loss in 2 half-moves
24 Rd3 loss in 2 half-moves
25 Re3 loss in 2 half-moves
26 Rf3 loss in 2 half-moves
27 Rg3 loss in 2 half-moves