Upper elementary and middle school kids can try their hand at this difficult ... this easier 9-by-9 grid sudoku puzzle, which ...

Some experts predict that A.I. will surpass human intelligence within the next few years. Play this puzzle to see how far the ...

Hours of math homework and difficult equations ... Math riddles and puzzles come in plenty of different varieties. Some more ...

LinkedIn introduced a new game—Zip, a logic-based puzzle game for professionals—on March 18. This puzzle game is designed to ...

The game’s most devoted solvers have unlocked creativity and complexity in the classic logic game ... notation that might be better for some hard puzzles.” It’s interesting to observe ...