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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kb1 draw
3 Kb2 draw
4 Kb6 draw
5 Kb7 draw
6 Kc1 draw
7 Kc7 draw
8 Kd1 draw
9 Kd2 draw
10 Ra8 draw
11 Rb1 draw
12 Rb2 draw
13 Rb3 draw
14 Rb6 draw
15 Rc8 draw
16 Rh8 draw
17 Kb3 loss in 2 half-moves
18 Kb5 loss in 2 half-moves
19 Kc3 loss in 2 half-moves
20 Kc5 loss in 2 half-moves
21 Kd3 loss in 2 half-moves
22 Kd5 loss in 2 half-moves
23 Kd6 loss in 2 half-moves
24 Kd7 loss in 2 half-moves
25 Rb5 loss in 2 half-moves
26 Rb7 loss in 2 half-moves
27 Rd8 loss in 2 half-moves
28 Re8 loss in 2 half-moves
29 Rf8 loss in 2 half-moves
30 Rg8 loss in 2 half-moves