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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 K4b5 draw
3 K4d4 draw
4 K5b5 draw
5 K5d5 draw
6 Kb3 draw
7 Kb6 draw
8 Kc3 draw
9 Kc6 draw
10 Kd3 draw
11 Ra4 draw
12 Rb1 draw
13 Rb2 draw
14 Rb3 draw
15 Rb8 draw
16 K4d5 loss in 1 half-moves
17 K5d4 loss in 1 half-moves
18 Kd6 loss in 1 half-moves
19 Rb5 loss in 1 half-moves
20 Rb7 loss in 1 half-moves