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