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 Kc7 win in 3 half-moves
3 Kd7 win in 3 half-moves
4 Rb7 win in 3 half-moves
5 Ka4 win in 7 half-moves
6 Ka5 win in 7 half-moves
7 Kbc5 win in 7 half-moves
8 Ra8 win in 7 half-moves
9 Kb4 win in 11 half-moves
10 Ka6 draw
11 Kbb6 draw
12 Kc4 draw
13 Kcb6 draw
14 Kcc5 draw
15 Kd6 draw
16 Rb6 draw
17 Rc8 draw
18 Rd8 draw
19 Rh8 draw
20 Kd5 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf8 loss in 2 half-moves
23 Rg8 loss in 2 half-moves