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

EGTB: win in 4 half-moves

# move score
1 Rd1 win in 3 half-moves
2 Kb1 draw
3 Kb2 draw
4 Kd1 draw
5 Ke7 draw
6 Kf7 draw
7 Kf8 draw
8 Re1 draw
9 Rf1 draw
10 Rg8 draw
11 Rh1 draw
12 Kc2 loss in 2 half-moves
13 Kd2 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Kd8 loss in 2 half-moves
16 Rg2 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rg7 loss in 2 half-moves