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 Ra1 win in 7 half-moves
3 Rc1 win in 7 half-moves
4 Rd1 win in 7 half-moves
5 Ka1 draw
6 Ka3 draw
7 Ka4 draw
8 Ka6 draw
9 Kb1 draw
10 Kb2 draw
11 Kb3 draw
12 Kb4 draw
13 Kb5 draw
14 Kb6 draw
15 Re2 draw
16 Re3 draw
17 Re7 draw
18 Re4 loss in 2 half-moves
19 Re5 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rg1 loss in 2 half-moves
24 Rh1 loss in 2 half-moves