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What You Can Learn and Practice on tsumo

tsumo combines playable Mahjong, rule-specific tutorials, daily puzzles, local club discovery, and editorial guides so new players can move from reading rules to making real table decisions. The public pages are written to match the same rule checks used by the live game engine.

The site focuses on practical Mahjong learning across Chinese Mahjong, Hong Kong Classic, Riichi, MCR, Filipino, and Taiwanese rulesets. Each ruleset has its own guide, tutorial route, and practice path so players can study one mode deeply instead of jumping between incompatible scoring systems.

Supported Rulesets

• Chinese Mahjong Rules (Simplified Chinese) - Simplified Chinese is the cleanest place to learn the game from zero. You use 136 tiles with no flowers, build a complete hand from four groups and one pair, and win a point each time you finish legally. The full match ends when someone reaches 4 points, so the early goal is not fancy theory. It is learning the draw-discard loop, seeing connected tiles quickly, and avoiding claims that make your hand worse.
• Hong Kong Mahjong Rules (HKOS) - Hong Kong Classic keeps the same core Mahjong hand-building you learned in Simplified Chinese, but adds a real win gate: your finished hand must reach at least 3 non-flower faan in this app. Flowers are revealed and replaced immediately, honors often become practical value anchors, and not every fast complete hand is actually legal. The beginner goal is to learn how to keep one clear value route alive while still building a normal hand.
• Riichi Mahjong Rules (Japanese Mahjong) - Riichi is the mode where legality, timing, and discipline matter most. You still build a complete hand, but the hand is not winnable unless it has at least one yaku. Dora adds bonus value after a yaku exists, not before. Riichi can be declared only from a legal ready hand and locks your hand shape, while furiten can block ron if your discard history overlaps your winning tiles. A new player should think yaku first, dora second, and safety always.
• MCR Mahjong Rules (Mahjong Competition Rules) - MCR is the most pattern-heavy mode in the game. You still build ordinary Mahjong hands, but the hand is not legal unless it reaches at least 8 non-flower points. Flowers are bonus only and cannot satisfy that minimum by themselves. This makes MCR a mode about planning scoring routes early, keeping a back-up route alive, and knowing when a hand that looks close is still not ready to win.
• Filipino Mahjong Rules (Philippine 17-Tile) - Filipino Mahjong keeps the core Mahjong draw-discard loop but makes two major changes. Every player holds 16 tiles instead of 13, needing 17 to win. All non-suited tiles including Winds and Dragons are treated as flower bonuses, replaced immediately on draw. Any complete 17-tile hand wins with no minimum score gate. Payouts are multiplier-based rather than additive faan. Beginners can focus on clean hand-building without worrying about value routes, but keeping the Puro Pong or Concealed Hand options alive is worth the effort because those multipliers add up fast.
• Taiwanese Mahjong Rules (Taiwan 16-Tile) - Taiwanese Mahjong uses 16-tile hands and wins with 17 tiles. Winds and Dragons are fully meldable — Dragon Pong and Wind Pong each earn +1 tai. Only the 8 Flower/Season tiles are bonus tiles that are revealed and replaced on draw. You must score at least 1 tai (flower tai counts) to declare a win. Scoring is additive for compatible patterns; Pure One Suit subsumes All Triplets in this baseline.

Rulesets Taught and Practiced on tsumo

tsumo is not a generic single-ruleset Mahjong clone. The site keeps separate teaching paths, validation rules, puzzle surfaces, and playable browser modes for six rulesets so a player can see exactly which rule caused a win, claim, or scoring decision to succeed or fail.