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 Rb6 win in 3 half-moves
4 Kb3 draw
5 Kb6 draw
6 Kbb4 draw
7 Kcb4 draw
8 Kcc4 draw
9 Kd3 draw
10 Kd4 draw
11 Rb7 draw
12 Rc8 draw
13 Re8 draw
14 Ka4 loss in 2 half-moves
15 Ka5 loss in 2 half-moves
16 Ka6 loss in 2 half-moves
17 Kbc4 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Kd2 loss in 2 half-moves
21 Ra8 loss in 2 half-moves
22 Rd8 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh8 loss in 2 half-moves