FAN 26 Middle Tiles (24 points)
A hand consisting entirely of 4, 5 and 6 number tiles.
DOES NOT COMBINE WITH:
All Simples [68] (implied)
No Honors [76] (implied)
FREQUENCY:
Not even 0.2% of all MCR games end with this hand characteristics scoring element.
source: Mahjong Greenbook MCR Rules 2014 (pdf)