I'll buy 3 of the joints conditions, BUT with this being a single sided board and with that cluster of three connections, being on "DEAD" pads that have no involved other connections actually being made into them.
HOWEVER the right bottom connector of the three IS BEING involved, along with its terminal just to the left of it.
The two constitute one winding of that T303 transforner, of which they are using only that one winding, as being a a ringing inductor associated with a SMPS.
BUT . . . . in looking at the foil pattern that routes up to that just mentioned left terminal, he has used a marker to trace out the path up to that left terminal .
I suspect what the photo seems to show, is a like MARKING he has placed on that right terminal's solder blob . . . . . .de veras ? . . . . Carlito .
(DAVENN . . . notice the limited use and insertion of any foreign language, well down within the context . . .as your sites "bots" seem to put a hold on any post initially being STARTED in a language other than Englee . . . . .to wit . . . . . . my Russskie used on an earlier post to Richard9025. )
The 4th questioned connection would be the "dead" terminal on the unused #8 assignment on the flyback transformer.
BUT . . . . . those ARE being superb examples of floating terminal joints . . . . . BUT not being the REAL stealthy ones, that just rise up to develop a circular fractured ring joint , that is very hard to see.
UNLESS there is some current being carried by that connection, and the the joint starts arcing and progressively ever opening up the joint, blackening it and widening the gap to make it easier to see.
You REALLY know when you have found that condition, when you can grasp he tip of its central wire / terminal and watch it wiggle from side to side . . . . or take a fingernail to pull on and release, to tereby flick it and listen to it "ping".
73's de Edd