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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rb6 win in 5 half-moves
3 K7g7 draw
4 K7g8 draw
5 K8g7 draw
6 K8g8 draw
7 Ra4 draw
8 Rb5 draw
9 Rb7 draw
10 Rc4 draw
11 Rd4 draw
12 Re4 draw
13 Kg6 loss in 2 half-moves
14 Kh6 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rh4 loss in 2 half-moves