Sashikomi (Intentional Deal-In) - Strategic Point Feeding

| About 3 min read | Tsumoron Editorial Team

What is Sashikomi?

Sashikomi (intentional deal-in) is an advanced tactic where you deliberately deal into a specific opponent for strategic reasons. Usually done to manipulate rankings, especially in the final hand.

“Sashikomi” literally means “inserting” points - strategically feeding points to a chosen player for your benefit.

Purposes of Sashikomi

PurposeSituationEffect
Rank controlOorasuSecure your position
Help leaderCooperationAssist top’s escape
Avoid last4th place dangerSecure 3rd+
Stop dealerBlock renchanEnd the hand

Conditions for Success

  1. Score awareness

    • Know all point totals
    • Track rank changes
    • Calculate needed points
  2. Confirm opponent tenpai

    • Riichi or melds
    • Certain deal-in
  3. Proper timing

    • Late game execution
    • Don’t alert others

Types of Sashikomi

Rank Securing

Situation: Oorasu, you're 2nd by narrow margin
Goal: Lock in 2nd place
Method: Deal to 3rd or 4th
Result: Widen gap, secure rank

Feeding the Leader

SituationYour RankActionGoal
Top runaway2nd-3rdDeal to topSupport escape
Close race3rd-4thDeal to topCreate gap with 2nd

Last Place Avoidance

Situation: You're 4th, close to 3rd
Action: Deal to 1st or 2nd
Effect: Narrow gap with 3rd
Result: Create comeback chance

Making It Natural

Avoiding Detection

  1. Act normal

    • Pretend to think
    • Natural tempo
    • Keep composure
  2. Have excuses

    • “Couldn’t fold”
    • “Misread”
    • “Thought it was safe”
  3. Timing tricks

    • Look like ippatsu cancel
    • Near exhaustion
    • Natural flow

Tile Selection

Opponent StateEasy TilesNotes
RiichiDanger tilesNon-genbutsu
Flush handSame suitMiddle tiles
ToitoiPair halves2 visible
Yakuhai callRelated tilesSame type

Risks of Sashikomi

Downsides

  1. Reputation damage

    • Too obvious = disliked
    • Future game impacts
    • Lost cooperation
  2. Calculation errors

    • Point mistakes
    • Rank unchanged
    • Backfires
  3. Game integrity

    • Not skill-based
    • Less fun
    • Fairness issues

Appropriate Use

  • Keep minimal
  • Make it natural
  • Don’t ruin the game
  • Consider others

Common Mistakes

  1. Too early

    • Mid-game execution
    • Still reversible
    • Wasted points
  2. Too obvious

    • Clearly unnatural
    • Others notice
    • Creates resentment
  3. Miscalculation

    • Wrong points
    • Rank unchanged
    • Counter-productive
  4. Ethical issues

    • Excessive cooperation
    • Unfair play
    • Manner violation

Summary

Sashikomi is intentionally dealing into someone to control rankings - an advanced endgame tactic. Used appropriately in close oorasu situations, it can be effective, but being too obvious is poor manners. Beginners should first enjoy normal mahjong and learn scoring, then consider this technique. Sashikomi should be a “last resort” used sparingly and naturally.

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