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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kb6 win in 3 half-moves
4 Kc1 win in 3 half-moves
5 Kc2 win in 3 half-moves
6 Kc3 win in 3 half-moves
7 Ka4 draw
8 Ka6 draw
9 Kd1 draw
10 Kd3 draw
11 Rb5 draw
12 Rc5 draw
13 Rd4 draw
14 Rd6 draw
15 Rd7 draw
16 Rd8 draw
17 Re5 draw
18 Rf5 draw
19 Ke1 loss in 2 half-moves
20 Ke2 loss in 2 half-moves
21 Ke3 loss in 2 half-moves
22 Rd3 loss in 2 half-moves
23 Rg5 loss in 2 half-moves
24 Rh5 loss in 2 half-moves