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 Rg5 win in 3 half-moves
5 Ra6 win in 7 half-moves
6 Ka2 draw
7 Ka4 draw
8 Kab3 draw
9 Kab4 draw
10 Kb2 draw
11 Kc3 draw
12 Kcb3 draw
13 Kcb4 draw
14 Kd3 draw
15 Kd4 draw
16 Re6 draw
17 Rf6 draw
18 Rg1 draw
19 Rh6 draw
20 Kb5 loss in 2 half-moves
21 Kc5 loss in 2 half-moves
22 Kd5 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