tsumoPure Shifted Chows (6 pts) + All Chows (2 pts) = 8 pts Blueprint
Shifted sequences (1-2-3, 2-3-4, 3-4-5) in Dots qualify for 8 points exact.
MCR Scoring Explained
Master MCR Mahjong scoring rules. Learn how to construct legal 8-point hands, leverage non-flower patterns, avoid chicken hand traps, and win more games.
MCR Scoring Explained
Comprehensive guide to MCR (Mahjong Competition Rules): 8-point minimum gate, non-repeat exclusion principles, top 8-point starter routes, and chicken hand rules.
The 8-Point Minimum Qualification Gate
Mahjong Competition Rules (MCR / Guobiao) enforce a strict qualification standard: every winning hand must accumulate at least 8 points from 81 recognized scoring patterns.
Declaring Hu (win) with only 7 points results in an invalid declaration and penalty. Understanding how 8 points are assembled is the single most important skill in MCR.
Top 5 Starter 8-Point Combinations
Beginners should memorize these five high-probability 8-point construction blueprints:
Mixed Triple Chow (8 pts) Blueprint
Matching 3-4-5 sequence across all 3 suits scores 8 points immediately.
| Combination Blueprint | Point Breakdown | Open Allowed? |
|---|---|---|
| Pure Shifted Chows + All Chows | 6 pts (Pure Shifted Chows: 1-2-3, 2-3-4, 3-4-5 in same suit) + 2 pts (All Chows) = 8 pts | Yes |
| Mixed Triple Chow | 8 pts (Same sequence like 3-4-5 in Dots, Bamboo, and Characters) | Yes |
| All Chows + Middle + Mixed Double | 2 pts (All Chows) + 2 pts (Simples) + 1 pt (Mixed Double Chow) + 1 pt (Short Straight) + 2 pts (Concealed Hand) = 8 pts | Partially (requires concealed hand) |
| Mixed Straight | 8 pts (1-2-3 suit A, 4-5-6 suit B, 7-8-9 suit C) | Yes |
| Big Three Winds / Mixed Shifted Pungs | 12 pts (Big Three Winds) or 6 pts (Mixed Shifted Pungs) + 6 pts (All Pungs) = 12 pts | Yes |
The Non-Repeat (Point Exclusion) Principle
MCR scoring enforces three strict non-repeat principles to prevent double-counting:
1. Principle of Non-Separation: A set of tiles cannot be rearranged into two different meld combinations in the same scoring calculation.
2. Principle of Non-Identical: You cannot score the exact same pattern twice using identical tile sets.
3. Principle of Exclusion: If a pattern is an inherent requirement of a higher-scoring pattern (e.g. Pure Straight inherently contains Short Straights in the same suit), the lower pattern cannot be claimed.
The Chicken Hand (0-Point Hand) Exception
In MCR, if a completed 14-tile hand contains literally zero pattern points from any of the 81 recognized patterns, it qualifies under the special Chicken Hand rule and scores 8 points by definition.
However, Chicken Hand is extremely fragile: accidentally forming a single 1-point pattern (like One Voided Suit, Pung of 1s, or Concealed Hand) destroys the 0-point state and renders the hand an illegal under-value hand.
Worked 8-Point Calculation Walkthrough
Let us evaluate a complete 14-tile hand step-by-step under official MCR competition rules:
Hand Composition: 1-2-3 Dots, 2-3-4 Dots, 3-4-5 Dots, 7-8-9 Bamboo, and Pair of 5 Characters.
Step 1: Check Pure Shifted Chows (three sequences in the same suit shifted by 1 digit: 1-2-3, 2-3-4, 3-4-5 Dots) = 6 Points.
Step 2: Check All Chows (hand consists of four sequences and a suited pair, with zero honors) = 2 Points.
Step 3: Sum Pattern Points: 6 pts + 2 pts = 8 Points Exact. The hand meets the 8-point gate and is fully legal to win!
- Step 1: 1-2-3, 2-3-4, 3-4-5 Dots = Pure Shifted Chows (6 pts).
- Step 2: Four sequences + suited pair = All Chows (2 pts).
- Step 3: Total = 8 Points (Legal Win).
MCR Point Exclusion (Non-Repeat) in Practice
Under MCR exclusion principles, you cannot claim sub-patterns that are inherently part of a larger pattern:
Example 1: Pure Straight (1-2-3, 4-5-6, 7-8-9 in same suit = 16 pts) inherently contains Short Straights and Two Terminal Chows. You score the 16 points for Pure Straight, but cannot also claim the lower sub-points.
Example 2: All Pungs (6 pts) inherently requires four triplets; you score the 6 points for All Pungs, but cannot double-count individual 1-point pung bonuses for standard suited tiles.
High-Frequency MCR Pattern Value Reference Table
| Pattern Name | Point Value | Pattern Requirement | Combinable With |
|---|---|---|---|
| Pure Shifted Chows | 6 Points | 3 sequences in same suit shifted by 1 step | All Chows (2 pts), Simples (2 pts) |
| Mixed Triple Chow | 8 Points | Same sequence in Dots, Bamboo, Characters | All Chows (2 pts), Concealed (2 pts) |
| Mixed Straight | 8 Points | 1-2-3 suit A, 4-5-6 suit B, 7-8-9 suit C | All Chows (2 pts), One Voided Suit (1 pt) |
| All Chows | 2 Points | 4 sequences and 1 suited pair (no honors) | Pure Shifted Chows, Mixed Double Chow |
| Middle Tiles (Simples) | 2 Points | All tiles numbers 2 through 8 | All Chows, Mixed Triple Chow |
| Big Three Winds | 12 Points | Triplets of 3 Wind tiles | All Pungs (6 pts), Half Flush (6 pts) |
FAQ
What happens if I declare Hu with only 7 points in MCR?
Declaring Hu with less than 8 points is a false win foul. The player must pay penalty points (typically 10-30 points) to the other players and play continues with that hand declared dead.
Can Flower tiles count toward the 8-point minimum in MCR?
No. Flower tiles award 1 bonus point each during payment calculation, but the hand must reach at least 8 points from non-flower pattern combinations to be legally declared.
Can I combine multiple 8-point patterns in MCR?
Yes! MCR scoring is additive. If your hand qualifies for Mixed Triple Chow (8 pts) and Concealed Hand (2 pts) and All Chows (2 pts), your total score is 12 points.
Why is Chicken Hand allowed in MCR?
Chicken Hand (0 pattern points = 8 points awarded) exists as a strategic safety valve for hands that have no recognizable patterns, but it is extremely difficult to achieve without accidentally triggering a 1-point pattern.