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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb3 win in 3 half-moves
3 Ka1 draw
4 Ka3 draw
5 Kab1 draw
6 Kab2 draw
7 Kc2 draw
8 Kcb1 draw
9 Kcb2 draw
10 Kd1 draw
11 Kd2 draw
12 Ra8 draw
13 Rb1 draw
14 Rb7 draw
15 Rg8 draw
16 Kb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rf8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves