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

EGTB: win in 4 half-moves

# move score
1 Rh2 win in 3 half-moves
2 Rh4 win in 3 half-moves
3 Ra8 draw
4 Rd8 draw
5 Re8 draw
6 Rf8 draw
7 Rh1 draw
8 Rh3 draw
9 Rh5 draw
10 Kb2 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Kb4 loss in 2 half-moves
13 Kc2 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kcd2 loss in 2 half-moves
16 Kd1 loss in 2 half-moves
17 Kd3 loss in 2 half-moves
18 Kd4 loss in 2 half-moves
19 Ke2 loss in 2 half-moves
20 Ked2 loss in 2 half-moves
21 Kf1 loss in 2 half-moves
22 Kf2 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rc8 loss in 2 half-moves
25 Rg8 loss in 2 half-moves
26 Rh6 loss in 2 half-moves
27 Rh7 loss in 2 half-moves