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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Rb7 win in 7 half-moves
3 Rb8 win in 11 half-moves
4 K7b7 draw
5 K7b8 draw
6 K7d7 draw
7 K7d8 draw
8 K8b7 draw
9 K8b8 draw
10 K8d7 draw
11 K8d8 draw
12 Kb6 draw
13 Kc6 draw
14 Kd6 draw
15 Ra4 draw
16 Rb3 draw
17 Rb5 draw
18 Rh4 draw
19 Rb1 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rc4 loss in 2 half-moves
22 Rd4 loss in 2 half-moves
23 Re4 loss in 2 half-moves
24 Rf4 loss in 2 half-moves
25 Rg4 loss in 2 half-moves