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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kbb4 win in 5 half-moves
3 Rb7 win in 5 half-moves
4 Rc8 win in 5 half-moves
5 Kcb4 win in 7 half-moves
6 Kcc5 win in 7 half-moves
7 Kd3 win in 7 half-moves
8 Kd4 win in 7 half-moves
9 Kd5 win in 7 half-moves
10 Kb6 win in 9 half-moves
11 Rh8 draw
12 Ka4 loss in 2 half-moves
13 Ka5 loss in 2 half-moves
14 Ka6 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kbc5 loss in 2 half-moves
17 Kc3 loss in 2 half-moves
18 Kc6 loss in 2 half-moves
19 Ra8 loss in 2 half-moves
20 Rd8 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