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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Rc1 win in 3 half-moves
3 Kc5 win in 5 half-moves
4 Kc7 win in 5 half-moves
5 Kb8 draw
6 Kc3 draw
7 Kc4 draw
8 Kd3 draw
9 Ke3 draw
10 Ke4 draw
11 Ke5 draw
12 Ra2 draw
13 Ra3 draw
14 Ra4 draw
15 Ra5 draw
16 Ra6 draw
17 Ra8 draw
18 Rb1 draw
19 Rd1 draw
20 Re1 draw
21 Kd5 loss in 2 half-moves
22 Kd7 loss in 2 half-moves
23 Kd8 loss in 2 half-moves
24 Ra7 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves