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

EGTB: win in 4 half-moves

# move score
1 K5b4 win in 3 half-moves
2 K5d4 win in 3 half-moves
3 Rb3 win in 3 half-moves
4 Rb6 win in 3 half-moves
5 K4b4 win in 7 half-moves
6 K4d4 win in 7 half-moves
7 K4d5 win in 7 half-moves
8 K5d5 win in 7 half-moves
9 Kb3 win in 7 half-moves
10 Kc3 win in 7 half-moves
11 Kd3 win in 7 half-moves
12 Rb1 win in 7 half-moves
13 Rb2 win in 7 half-moves
14 Rb4 win in 7 half-moves
15 Kb6 draw
16 Ra5 draw
17 Kc6 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rb8 loss in 2 half-moves