chess shiny

2000 chess tactical problems with visual hints.
1230 endgame puzzles.
search engine for opening database.
engine analysis stockfish 16.
analysis features: automatically draw the engine plan with arrows,auto play engine lines showing the future for each piece,show the posible errors in the position,or values for every posible move.
configurable engine parameters:threads,depth,thinking time
visual features:show undefended,under defended,weak squares,piece context,attackers,defenders,x-ray for bishops queen and rooks,covered attackers , the features can be disabled or configured on features button.
option to use multiple boards simultaneously.
save games with analysis.
create chess presentations.
play against the engine,the level of the engine can be configured increasing or decreasing depth parameter on engine features.
features are viewed from the perspective of the turn. if it is blacks turn weak squares will show black's weak squares.
simulate engine vs engine games with adjustable level for each side using the engine move button.
complete opening database.
completely offline app.