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