Chain still skips

This morning, I pedaled from home to Licao-licao via Tungko thence to San Mateo.  And, I used my 29er.

The ride was less enjoyable as the chain skipped on almost all climbs, especially after the drive train got dirty.  So, in every instance, I got off and walked.

I passed by two bike shops and had my drive train checked up.  The shop mechanics thought that it was the chain ring.  Some teeth are worn already.  Since the cog and the chain are new and the alignment is good, it's the logical culprit.

Now, I have to look for a replacement chain ring.