Deashi (Early Progress) - Starting Hand Development Speed

| About 3 min read | Tsumoron Editorial Team

What is Deashi?

Deashi refers to how quickly and smoothly your hand develops in the early game. Used as “good deashi” or “bad deashi,” it describes hand progress from the starting deal through the first several turns.

Good deashi leads to faster wins, while bad deashi requires patience and adjustment. The first few turns often determine the hand’s fate, making deashi assessment an important skill.

Judging Deashi

Good vs Bad Deashi

FactorGood DeashiBad Deashi
Starting handMany pairs/sequencesScattered
ShantenIishanten or betterSanshanten+
Useful tilesMany (10+ types)Few (5 or less)
DrawsGetting needed tilesOnly useless
YakuConfirmed or likelyNone visible

Turn-by-Turn Ideal

Starting: Ryanshanten
Turn 3: Iishanten
Turn 6: Tenpai
→ Good deashi

Starting: Sanshanten+
Turn 6: Still ryanshanten
→ Bad deashi

Factors Affecting Deashi

Starting Hand Quality

Hand StateRatingDeashi Impact
2+ completed meldsExcellentVery good
3+ taatsuGoodGood
3+ pairsFairDepends
All isolatedPoorBad

Early Draws

  1. Draw useful tiles

    • Hand progresses
    • Deashi improves
  2. Only useless tiles

    • Stagnation
    • Deashi worsens
  3. Draw dora

    • Sudden acceleration
    • Deashi jumps

Strategy by Deashi

With Good Deashi

  1. Speed priority

    • Aim for quick win
    • Pressure opponents
  2. Can aim for value

    • Room to maneuver
    • Consider higher hands
  3. Riichi priority

    • Go for ippatsu/ura
    • Maximize points

With Bad Deashi

ApproachMethodGoal
Wide shapeConsider callsSpeed to tenpai
Secure yakuYakuhai etc.Win priority
Defense prepKeep safe tilesAvoid deal-in
RecoveryBuild patientlyMid-game push

Psychological Impact

Effect on Players

  1. Good deashi

    • Builds confidence
    • Become aggressive
    • Game is fun
  2. Bad deashi

    • Creates anxiety
    • Become passive
    • Mistakes increase

Effect on Opponents

Fast discards → Good deashi → They're cautious
Slow discards → Bad deashi → They target you

Typical Deashi Patterns

Good Deashi Examples

Sequence type:

Starting: 234m 567p 45s EE SS 6s
→ Iishanten, pinfu confirmed

Pair type:

Starting: 11m 44p 77p 99s EE HH 5
→ Chiitoitsu iishanten

Bad Deashi Examples

Scattered:

Starting: 147m 258p 369s ESWN
→ All isolated, no yaku

Terminal-heavy:

Starting: 1199m 19p 19s ESWNHH
→ Hard-to-use tiles only

Average Progress Stats

Starting ShantenAvg Tenpai TurnDeashi Rating
IishantenTurns 3-4Best
RyanshantenTurns 6-7Good
SanshantenTurns 9-10Normal
SuushantenTurns 12-13Poor

Reading Opponent Deashi

From Discards

  1. Middle tiles on turn 1

    • Hand is ready
    • Likely good deashi
  2. Rapid honor discards

    • Hand is progressing
    • Be cautious
  3. Terminals in order

    • Tanyao direction
    • Watch middle tiles

Round Impact

East 1 Deashi

Good deashi start
→ Gain momentum
→ Overall favorable

Bad deashi start
→ Creates anxiety
→ Need recovery

South 4 (Final) Deashi

  • Comeback chance
  • Key to escape
  • Race against time
  • All-or-nothing

Common Mistakes

  1. Judging only by deashi

    • Mid-game can reverse
    • Nothing’s decided yet
  2. Panicking

    • Desperate calls
    • Rushing cheap hands
  3. Giving up too early

    • Recovery possible
    • Patience matters
  4. Overconfidence

    • Don’t let guard down
    • Caution still needed

Summary

Deashi describes how well your hand develops in the early game. Based on starting hand quality, early draws, and useful tile count, it affects subsequent strategy. Beginners should watch “progress in turns 3-6” - play aggressively with good deashi, cautiously with bad. Even with poor deashi, don’t give up - patient building can create comeback chances.

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