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

EGTB: win in 4 half-moves

# move score
1 Re8 win in 3 half-moves
2 Rg3 win in 3 half-moves
3 Rg1 win in 5 half-moves
4 Rg2 win in 5 half-moves
5 Kb1 draw
6 Kb2 draw
7 Kcc1 draw
8 Kcd2 draw
9 Kdc1 draw
10 Kdd2 draw
11 Ke1 draw
12 Ke2 draw
13 Ra8 draw
14 Rf8 draw
15 Rg4 draw
16 Rh8 draw
17 Kb3 loss in 2 half-moves
18 Kc3 loss in 2 half-moves
19 Kd3 loss in 2 half-moves
20 Rb8 loss in 2 half-moves
21 Rc8 loss in 2 half-moves
22 Rd8 loss in 2 half-moves
23 Rg5 loss in 2 half-moves
24 Rg6 loss in 2 half-moves
25 Rg7 loss in 2 half-moves