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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Rh2 win in 3 half-moves
3 Rh3 win in 3 half-moves
4 Rh4 win in 3 half-moves
5 Rb6 win in 5 half-moves
6 Ra6 win in 11 half-moves
7 Ka2 draw
8 Ka4 draw
9 Kab3 draw
10 Kab4 draw
11 Kb2 draw
12 Kc3 draw
13 Kcb3 draw
14 Kcb4 draw
15 Kd3 draw
16 Kd4 draw
17 Rf6 draw
18 Rg6 draw
19 Rh1 draw
20 Rh5 draw
21 Kc5 loss in 2 half-moves
22 Kd5 loss in 2 half-moves
23 Rc6 loss in 2 half-moves
24 Rd6 loss in 2 half-moves
25 Re6 loss in 2 half-moves
26 Rh7 loss in 2 half-moves
27 Rh8 loss in 2 half-moves