Home›Mathematical puzzles›mathematical puzzle🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPortuguêsTürkçeРусскийالعربية한국어中文日本語EntityQ1151643· pop 15· linked from 111 articlesmathematical puzzletype of puzzleAvailable in 15 languagesFrançaisDeutsch中文日本語РусскийArmenianCroatianHebrewMacedonianConnectionspolyominoEntitytopologyEntityCategoriesMathematical puzzlesRecreational mathematics