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

EGTB: win in 4 half-moves

# move score
1 Ka5 win in 3 half-moves
2 Ka7 draw
3 Kb5 draw
4 Kb7 draw
5 Kc2 draw
6 Kc3 draw
7 Kd2 draw
8 Ke2 draw
9 Ke3 draw
10 Ra1 draw
11 Rb1 draw
12 Rc2 draw
13 Rc3 draw
14 Rc4 draw
15 Rc8 draw
16 Rd1 draw
17 Rg1 draw
18 Rh1 draw
19 Kb6 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Ke4 loss in 2 half-moves
23 Rc5 loss in 2 half-moves
24 Rc6 loss in 2 half-moves
25 Rc7 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rf1 loss in 2 half-moves