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 Ka5 draw
3 Ka6 draw
4 Ka7 draw
5 Rf1 draw
6 Rg3 draw
7 Rg7 draw
8 Rg8 draw
9 Kb5 loss in 2 half-moves
10 Kb7 loss in 2 half-moves
11 Kc1 loss in 2 half-moves
12 Kc2 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Kc7 loss in 2 half-moves
16 Kd2 loss in 2 half-moves
17 Ke1 loss in 2 half-moves
18 Ke2 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rg5 loss in 2 half-moves
22 Rg6 loss in 2 half-moves
23 Rh1 loss in 2 half-moves