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

EGTB: win in 4 half-moves

# move score
1 Kb3 win in 3 half-moves
2 Kb4 win in 3 half-moves
3 Kb5 win in 3 half-moves
4 Ka3 win in 7 half-moves
5 Ka5 win in 7 half-moves
6 Ka7 win in 7 half-moves
7 Kb7 win in 7 half-moves
8 Kc7 win in 7 half-moves
9 Rc7 win in 7 half-moves
10 Ka8 draw
11 Rc1 draw
12 Rc5 draw
13 Rc6 draw
14 Rd8 draw
15 Re8 draw
16 Rf8 draw
17 Rc2 loss in 2 half-moves
18 Rc3 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves