Logic & Puzzle

Challenge 10 historical chess legends including Kasparov, Fischer, Tal, Karpov, Capablanca, and Carlsen. Features multi-factor personality weighting, 6 difficulty tiers, in-game commentary, and post-game accuracy reports.

Test and sharpen your visual working memory. Flip cards, remember symbol positions, and clear matching pairs in the fewest moves and fastest time.

Slide numbered tiles on a 4x4 grid. When two tiles with the same number collide, they merge into their sum! Can you reach the legendary 2048 and 4096 tiles?

Place geometric polyomino blocks onto the 8x8 grid. Complete full horizontal rows or vertical columns to vaporize lines and score multi-clearing combos!

Play unlimited free Sudoku across 4 difficulty tiers from Easy to Grandmaster. Features smart pencil candidate notes, automatic error detection, and an intelligent AI Logic Explainer that teaches advanced solving techniques step-by-step.