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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 K4b3 win in 7 half-moves
3 K4b4 win in 7 half-moves
4 Kb2 win in 7 half-moves
5 Kb5 win in 7 half-moves
6 Kc5 win in 7 half-moves
7 Ra2 win in 7 half-moves
8 K3b3 draw
9 K3b4 draw
10 Kd2 draw
11 Rc1 draw
12 Rh2 draw
13 K3d3 loss in 2 half-moves
14 K3d4 loss in 2 half-moves
15 K4d3 loss in 2 half-moves
16 K4d4 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Rd2 loss in 2 half-moves
19 Re2 loss in 2 half-moves
20 Rf2 loss in 2 half-moves
21 Rg2 loss in 2 half-moves