The random notes to connect are A#1, D#1, B2, and D#2 (not a bad combination at all, except for the B), as shown here (I selected the correct note on the first try this time, by the way):
NOTE: This chart is wrong (D#3 is missing from the upper end of the G string, and it shows F#4 as the highest note, whereas it’s actually F4); future posts (from Bass Maze #3 onward) will feature the accurate chart, but I’m leaving this one as it shows the notes being played.