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 Ka4 draw
3 Ka6 draw
4 Kb1 draw
5 Kb2 draw
6 Kb3 draw
7 Kc1 draw
8 Kc3 draw
9 Kd1 draw
10 Kd2 draw
11 Kd3 draw
12 Ra8 draw
13 Rb1 draw
14 Rb2 draw
15 Rb3 draw
16 Rg8 draw
17 Kb4 loss in 2 half-moves
18 Kb5 loss in 2 half-moves
19 Kb6 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb7 loss in 2 half-moves
23 Rc8 loss in 2 half-moves
24 Rd8 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves