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

EGTB: win in 4 half-moves

# move score
1 Kg6 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Rd8 win in 7 half-moves
4 Kd5 draw
5 Kd6 draw
6 Kee6 draw
7 Kef6 draw
8 Kfe6 draw
9 Kff6 draw
10 Ra8 draw
11 Rb5 draw
12 Rb7 draw
13 Rc8 draw
14 Re8 draw
15 Rf8 draw
16 Rh8 draw
17 Kd4 loss in 2 half-moves
18 Kee4 loss in 2 half-moves
19 Kef4 loss in 2 half-moves
20 Kfe4 loss in 2 half-moves
21 Kff4 loss in 2 half-moves
22 Kg4 loss in 2 half-moves
23 Kg5 loss in 2 half-moves
24 Rb1 loss in 2 half-moves
25 Rb2 loss in 2 half-moves
26 Rb3 loss in 2 half-moves
27 Rb4 loss in 2 half-moves
28 Rg8 loss in 2 half-moves