Shanten Nmber

This app instantly calculates your current shanten count from a 13-tile mahjong hand and shows all improvement tiles to help advance your hand. Fully supports melded hands (Pon, Chi, Kan), making it ideal for both solo practice and study of complex real-game situations. Whether you're a beginner or a veteran, it's your go-to mahjong tool to sharpen your strategy. ・Key Features Real-time shanten number calculation for 13-tile hands Full support for melds: Chi, Pon, Kan (open and closed) Automatically highlights effective tiles that reduce shanten Clean and responsive tile interface with auto sort Undo, reset, and meld removal functions for easy testing ・Ideal For: Practicing mahjong hand-building Beginners learning the basics of hand progression Intermediate and advanced players studying yaku or defense Preparing for Tenhou, Mahjong Soul, Riichi City, and more Improve your hand-reading skills and take your mahjong game to the next level!