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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kc2 win in 3 half-moves
3 Kd2 win in 3 half-moves
4 Kb6 win in 5 half-moves
5 Rb6 win in 5 half-moves
6 Kb3 draw
7 Kbb4 draw
8 Kcb4 draw
9 Kcc4 draw
10 Kd3 draw
11 Kd4 draw
12 Rb8 draw
13 Rc7 draw
14 Rf7 draw
15 Ka4 loss in 2 half-moves
16 Ka5 loss in 2 half-moves
17 Ka6 loss in 2 half-moves
18 Kbc4 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Ra7 loss in 2 half-moves
22 Rd7 loss in 2 half-moves
23 Re7 loss in 2 half-moves
24 Rg7 loss in 2 half-moves
25 Rh7 loss in 2 half-moves