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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Rg2 draw
3 Rg3 draw
4 Rg4 draw
5 Rg5 draw
6 Rh7 draw
7 K7b7 loss in 2 half-moves
8 K7b8 loss in 2 half-moves
9 K7d7 loss in 2 half-moves
10 K7d8 loss in 2 half-moves
11 K8b7 loss in 2 half-moves
12 K8b8 loss in 2 half-moves
13 K8d7 loss in 2 half-moves
14 K8d8 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Kd6 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rg8 loss in 2 half-moves