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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rb3 win in 5 half-moves
3 Rb2 win in 9 half-moves
4 Kb2 draw
5 Kb3 draw
6 Kc2 draw
7 Kcd2 draw
8 Kcd3 draw
9 Kd1 draw
10 Ke1 draw
11 Ke3 draw
12 Ked2 draw
13 Ked3 draw
14 Kf1 draw
15 Kf2 draw
16 Kf3 draw
17 Ra8 draw
18 Rh8 draw
19 Kb4 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rb5 loss in 2 half-moves
24 Rb6 loss in 2 half-moves
25 Rb7 loss in 2 half-moves
26 Rc8 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