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

EGTB: win in 4 half-moves

# move score
1 Rd2 win in 3 half-moves
2 K1b1 draw
3 K1b2 draw
4 K1d1 draw
5 K1d2 draw
6 K2b1 draw
7 K2b2 draw
8 K2d1 draw
9 K2d2 draw
10 Re2 draw
11 Rf2 draw
12 Rg1 draw
13 Rg3 draw
14 Rg8 draw
15 Rh2 draw
16 Kb3 loss in 2 half-moves
17 Kc3 loss in 2 half-moves
18 Kd3 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rg5 loss in 2 half-moves
21 Rg6 loss in 2 half-moves
22 Rg7 loss in 2 half-moves