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

EGTB: win in 2 half-moves

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