Tetris:
https://www.mathster.com/games/tetris/
Yahtzee:
https://www.lumpty.com/amusements/Games/fakezee/fakezee.html
Schaken:
https://www.lumpty.com/amusements/Games/chess/chess.html
Peg Solitaire
https://www.lumpty.com/amusements/Games/solitaire/solitaire.html
