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

EGTB: win in 4 half-moves

# move score
1 K5b5 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 K6d5 win in 5 half-moves
4 Ra6 win in 5 half-moves
5 Ra7 win in 5 half-moves
6 K5d5 draw
7 K6b5 draw
8 K6b6 draw
9 K6d6 draw
10 Kc7 draw
11 Kd7 draw
12 Ra1 draw
13 Ra2 draw
14 Ra3 draw
15 Ra8 draw
16 Rb5 draw
17 K5b6 loss in 2 half-moves
18 K5d6 loss in 2 half-moves
19 Kb4 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Ra4 loss in 2 half-moves