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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 K2b2 draw
3 K3b2 draw
4 Ka1 draw
5 Ka4 draw
6 Kb1 draw
7 Rf3 draw
8 Rg1 draw
9 Rg2 draw
10 Rg7 draw
11 Rh3 draw
12 K2b3 loss in 2 half-moves
13 K3b3 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rd3 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rg5 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rg8 loss in 2 half-moves