Gomoku & Four in a Row: Renju

A calm game of Gomoku played with rubies, sapphires and diamonds. Gem Room is a 3D board game where you play Gomoku (five in a row, also called Gobang or Renju) and Four in a Row with precision-cut jewels. Play against the computer AI, play two players on one device, and play anywhere offline. ■ Gomoku — five rule sets in one app · Freestyle: the classic game, get five in a row first, no forbidden moves · Renju: the international tournament rule; Black may not play double-three, double-four or overline · Caro: the Vietnamese rule; a five blocked at both ends does not win · Standard (Swap2): exactly five wins, with the Swap2 opening · No double-three: the popular Korean club rule · Forbidden points are marked with ✕ on the board, so beginners learn the rules naturally ■ Four in a Row — drop gems into the upright frame and line up four · Classic 7×6 · Pop Out: pull your own gem out of the bottom row · Wide 8×7 and Five in a Row 9×7 ■ An AI opponent at your level · Beginner, Normal, Expert and Master, with fine ELO tuning from 1000 to 2800 · The Master AI reads VCF (victory by continuous fours) · A 7-win streak challenge: the AI quietly gets stronger while you keep winning · Hint, undo, restart, move record and last-move marker ■ 900 Gomoku and Four in a Row puzzles · 100 puzzles for every rule: make five, critical block, make an open four, double threat, find the forbidden point, the Caro trap · Sharpen your tactics one move at a time ■ Easy to learn · Illustrated rules and a step-by-step tutorial · 9 languages: English, Korean, Japanese, Chinese (Traditional and Simplified), French, German, Portuguese and Arabic ■ Your gems, your board · 11 gems including ruby, sapphire, amethyst, onyx, diamond, pearl and emerald · Raw stone, precision cut or crystal ball shapes · Kaya wood, walnut, marble, jade, gold and silver boards · 13 backgrounds such as a chess club, night sky, galaxy and underwater, plus gem brilliance settings · A battery saver graphics mode keeps it smooth on older phones ■ No ads, no internet needed · No ads, no sign-up, no data collection · Games and settings stay on your device · Free: Freestyle and No double-three Gomoku, Classic Four in a Row, 15 puzzles per rule and every AI level. A single one-time purchase unlocks all rules, all 900 puzzles and every gem and board. If you enjoy Gomoku, Renju, Gobang, Four in a Row or classic board games, place your first gem now.

Updated internal libraries for better stability.