level 3743 - have King changed the number of moves?????

@jojo2000 - Welcome to our community.  Unfortunately - there are currently only 20 moves for level 3743.  That is one of the reasons it is considered a hard level.  However if you start with a full space ship or build a bot (or at least have the third level) you will get three extra moves so you can start with 23 moves.  It is not unusual for the studio to change the number of moves for some of the levels after they have been released for awhile.  Most of the videos you see on line are made by people who play the level as soon as it has been released and they are not always updated when the level has changed. Sometimes they will reduce the amount of moves if they think it was too easy and occasionally they will add moves  if it appears to be too difficult for the players.  That is one reason why I worked so hard to get to the point where I have to wait for the new releases each week so I can play the new levels within the first week of release (I know that doesn't help you). 
I would start with a full build a bot/space ship and a double cb combo (or a CB/wrap).  Plus I would also use a coconut wheel.  You obviously need to clear the blockers as soon as possible so you can have the stripes dropping from the dispensers and set off the two wraps by the fishing float to release fish.