Here is a list of all documented files with brief descriptions:

projects
cli
src
cutechesscoreapp.h
enginematch.h
matchparser.h
gui
3rdparty
modeltest
modeltest.h
qcustomplot
qcustomplot.h
components
pgnhighlighter
src
pgnhighlighter.h
src
boardview
boardscene.h
boardview.h
graphicsboard.h
graphicspiece.h
graphicspiecereserve.h
piecechooser.h
autoverticalscroller.h
chessclock.h
cutechessapp.h
engineconfigproxymodel.h
engineconfigurationdlg.h
engineconfigurationmodel.h
enginemanagementwidget.h
engineoptiondelegate.h
engineoptionmodel.h
engineselectiondlg.h
evalhistory.h
evalwidget.h
gamedatabasedlg.h
gamedatabasemanager.h
gamedatabasesearchdlg.h
gamesettingswidget.h
gametabbar.h
gameviewer.h
gamewall.h
importprogressdlg.h
mainwindow.h
movecommenttoken.h
movelist.h
movenumbertoken.h
movetoken.h
newgamedlg.h
newtournamentdialog.h
pathlineedit.h
pgndatabase.h
pgndatabasemodel.h
pgngameentrymodel.h
pgnimporter.h
pgntagsmodel.h
pgntoken.h
plaintextlog.h
settingsdlg.h
stringvalidator.h
threadedtask.h
tilelayout.h
timecontroldlg.h
tournamentresultsdlg.h
tournamentsettingswidget.h
lib
3rdparty
fathom
src
tbconfig.h
tbcore.c
tbcore.h
tbprobe.h
components
json
src
jsonparser.h
jsonserializer.h
src
board
aiwokboard.h
almostboard.h
amazonboard.h
andernachboard.h
antiboard.h
aseanboard.h
atomicboard.h
berolinaboard.h
board.h
boardfactory.h
boardtransition.h
capablancaboard.h
caparandomboard.h
chancellorboard.h
checklessboard.h
chessgiboard.h
chigorinboard.h
codrusboard.h
coregalboard.h
courierboard.h
crazyhouseboard.h
embassyboard.h
extinctionboard.h
frcboard.h
genericmove.h
giveawayboard.h
gothicboard.h
grandboard.h
gridboard.h
gryphonboard.h
gustavboard.h
hoppelpoppelboard.h
hordeboard.h
janusboard.h
jesonmorboard.h
kingofthehillboard.h
knightmateboard.h
loopboard.h
losalamosboard.h
losersboard.h
makrukboard.h
modernboard.h
move.h
ncheckboard.h
oukboard.h
piece.h
placementboard.h
pocketknightboard.h
racingkingsboard.h
restrictedmoveboard.h
result.h
rifleboard.h
seirawanboard.h
shatranjboard.h
side.h
sittuyinboard.h
square.h
standardboard.h
suicideboard.h
syzygytablebase.h
threekingsboard.h
twokingseachboard.h
westernboard.h
westernzobrist.h
zobrist.h
chessengine.h
chessgame.h
chessplayer.h
classregistry.h
econode.h
elo.h
enginebuilder.h
enginebuttonoption.h
enginecheckoption.h
enginecombooption.h
engineconfiguration.h
enginefactory.h
enginemanager.h
engineoption.h
engineoptionfactory.h
engineprocess.h
enginespinoption.h
enginetextoption.h
epdrecord.h
gameadjudicator.h
gamemanager.h
gauntlettournament.h
humanbuilder.h
humanplayer.h
knockouttournament.h
mersenne.h
moveevaluation.h
openingbook.h
openingsuite.h
pgngame.h
pgngameentry.h
pgngamefilter.h
pgnstream.h
playerbuilder.h
polyglotbook.h
pyramidtournament.h
roundrobintournament.h
sprt.h
timecontrol.h
tournament.h
tournamentfactory.h
tournamentpair.h
tournamentplayer.h
uciengine.h
worker.h
xboardengine.h