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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 K2b2 draw
3 K3b2 draw
4 Ka1 draw
5 Ka4 draw
6 Kb1 draw
7 Ra1 draw
8 Rf2 draw
9 Rf3 draw
10 Rf7 draw
11 Rg1 draw
12 Rh1 draw
13 K2b3 loss in 2 half-moves
14 K3b3 loss in 2 half-moves
15 Kb4 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Rd1 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rf5 loss in 2 half-moves
21 Rf6 loss in 2 half-moves
22 Rf8 loss in 2 half-moves