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

EGTB: win in 4 half-moves

# move score
1 Re1 win in 3 half-moves
2 Rf1 draw
3 Rg2 draw
4 Rg3 draw
5 Rg4 draw
6 Rg7 draw
7 Kb1 loss in 2 half-moves
8 Kb2 loss in 2 half-moves
9 Kb3 loss in 2 half-moves
10 Kc3 loss in 2 half-moves
11 Kcc1 loss in 2 half-moves
12 Kcd2 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Kdc1 loss in 2 half-moves
15 Kdd2 loss in 2 half-moves
16 Ke1 loss in 2 half-moves
17 Ke2 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rg6 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh1 loss in 2 half-moves