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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Ra4 draw
3 Rc4 draw
4 Rd4 draw
5 Re4 draw
6 Rh5 draw
7 Rh6 draw
8 Rh7 draw
9 Rh8 draw
10 Kb1 loss in 2 half-moves
11 Kb2 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Kb6 loss in 2 half-moves
15 Kb7 loss in 2 half-moves
16 Kc1 loss in 2 half-moves
17 Kc3 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Kc7 loss in 2 half-moves
20 Kd1 loss in 2 half-moves
21 Kd2 loss in 2 half-moves
22 Kd3 loss in 2 half-moves
23 Kd5 loss in 2 half-moves
24 Kd6 loss in 2 half-moves
25 Kd7 loss in 2 half-moves
26 Rf4 loss in 2 half-moves
27 Rg4 loss in 2 half-moves
28 Rh1 loss in 2 half-moves
29 Rh2 loss in 2 half-moves
30 Rh3 loss in 2 half-moves