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 K2b3 draw
4 K3b2 draw
5 K3b3 draw
6 Ka1 draw
7 Ka4 draw
8 Kb1 draw
9 Kb4 draw
10 Ra1 draw
11 Rc1 draw
12 Rd1 draw
13 Re8 draw
14 Re2 loss in 2 half-moves
15 Re3 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rh1 loss in 2 half-moves