The piano chords are given for both hands, left and right.
There are 24 piano chords given in this pdf document: 12 major and 12 minor chords. The most common names are used for the chords rooted in enharmonic note.
The left hand only plays the root note.
For the right hand, there are 5 possible notes given, with the obvious avoidance of ledger lines (except for middle C). The player should choose which notes to play in any given situation.
The notes are coloured by pitch with engraved note names.