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 Ka1 draw
3 Ka2 draw
4 Ka4 draw
5 Kb2 draw
6 Kb4 draw
7 Kb6 draw
8 Kc1 draw
9 Rb7 draw
10 Rh8 draw
11 Ka5 loss in 2 half-moves
12 Ka6 loss in 2 half-moves
13 Kc2 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves