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

EGTB: win in 4 half-moves

# move score
1 Ra1 win in 3 half-moves
2 Ka2 draw
3 Ka3 draw
4 Ka4 draw
5 Ka7 draw
6 Kb2 draw
7 Kb4 draw
8 Kb8 draw
9 Kc2 draw
10 Kc3 draw
11 Kc4 draw
12 Rb1 draw
13 Rc1 draw
14 Rd1 draw
15 Re1 draw
16 Rf5 draw
17 Rf6 draw
18 Rf7 draw
19 Rf8 draw
20 Kb7 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rf3 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rh1 loss in 2 half-moves