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 Ka7 draw
3 Ka8 draw
4 Kb3 draw
5 Kb4 draw
6 Kc3 draw
7 Kc8 draw
8 Kd3 draw
9 Kd4 draw
10 Ra1 draw
11 Rc1 draw
12 Rd1 draw
13 Rh2 draw
14 Rh3 draw
15 Rh4 draw
16 Rh5 draw
17 Rh6 draw
18 Kb5 loss in 2 half-moves
19 Kb7 loss in 2 half-moves
20 Kc5 loss in 2 half-moves
21 Kc7 loss in 2 half-moves
22 Kd5 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Rf1 loss in 2 half-moves
25 Rg1 loss in 2 half-moves
26 Rh7 loss in 2 half-moves
27 Rh8 loss in 2 half-moves