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

EGTB: win in 4 half-moves

# move score
1 Rg1 win in 3 half-moves
2 Rg3 win in 3 half-moves
3 Rg4 win in 3 half-moves
4 K1a2 draw
5 K1b2 draw
6 K3a2 draw
7 K3b2 draw
8 Ka4 draw
9 Kb4 draw
10 Ra6 draw
11 Rb6 draw
12 Rc6 draw
13 Rg2 draw
14 Rg5 draw
15 Rh6 draw
16 Kb1 loss in 2 half-moves
17 Kb3 loss in 2 half-moves
18 Rd6 loss in 2 half-moves
19 Re6 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rg8 loss in 2 half-moves