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 Ka7 draw
3 Kb8 draw
4 Ke3 draw
5 Ke4 draw
6 Ke5 draw
7 Kf3 draw
8 Kg3 draw
9 Kg4 draw
10 Ra3 draw
11 Rb3 draw
12 Rc1 draw
13 Rc2 draw
14 Rc4 draw
15 Rc5 draw
16 Rc6 draw
17 Rd3 draw
18 Re3 draw
19 Kf5 loss in 2 half-moves
20 Kg5 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rc8 loss in 2 half-moves
23 Rf3 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rh3 loss in 2 half-moves