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

EGTB: win in 4 half-moves

# move score
1 Rg2 win in 3 half-moves
2 Rg3 win in 3 half-moves
3 Rg4 win in 3 half-moves
4 Ka2 draw
5 Ka4 draw
6 Kab3 draw
7 Kab4 draw
8 Kb2 draw
9 Kc3 draw
10 Kcb3 draw
11 Kcb4 draw
12 Kd3 draw
13 Kd4 draw
14 Kd5 draw
15 Ra6 draw
16 Re6 draw
17 Rf6 draw
18 Rg1 draw
19 Rg5 draw
20 Rh6 draw
21 Kb5 loss in 2 half-moves
22 Kc5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rc6 loss in 2 half-moves
25 Rd6 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rg8 loss in 2 half-moves