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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ra4 draw
3 Rb5 draw
4 Rb6 draw
5 Rb7 draw
6 Re4 draw
7 Rf4 draw
8 Rg4 draw
9 Rh4 draw
10 Kb1 loss in 2 half-moves
11 Kb2 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Kc1 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kd1 loss in 2 half-moves
16 Kd2 loss in 2 half-moves
17 Kd3 loss in 2 half-moves
18 Kf2 loss in 2 half-moves
19 Kf3 loss in 2 half-moves
20 Kf4 loss in 2 half-moves
21 Kg2 loss in 2 half-moves
22 Kg4 loss in 2 half-moves
23 Kh2 loss in 2 half-moves
24 Kh3 loss in 2 half-moves
25 Kh4 loss in 2 half-moves
26 Rb1 loss in 2 half-moves
27 Rb2 loss in 2 half-moves
28 Rb3 loss in 2 half-moves
29 Rc4 loss in 2 half-moves
30 Rd4 loss in 2 half-moves