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

EGTB: win in 2 half-moves

# move score
1 Kb1 win in 1 half-moves
2 Ka1 draw
3 Ka3 draw
4 Ka6 draw
5 Ka8 draw
6 Kb2 draw
7 Kb3 draw
8 Ra3 draw
9 Ra4 draw
10 Rf5 draw
11 Rg5 draw
12 Rh5 draw
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Kb8 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rc5 loss in 2 half-moves
19 Rd5 loss in 2 half-moves
20 Re5 loss in 2 half-moves