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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb6 draw
5 Ke2 draw
6 Ke4 draw
7 Kf4 draw
8 Ra3 draw
9 Rb3 draw
10 Rc1 draw
11 Rc2 draw
12 Rc4 draw
13 Re3 draw
14 Kb7 loss in 2 half-moves
15 Kf2 loss in 2 half-moves
16 Kg2 loss in 2 half-moves
17 Kg3 loss in 2 half-moves
18 Kg4 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rc8 loss in 2 half-moves
23 Rd3 loss in 2 half-moves
24 Ke3 loss in 1 half-moves