AI Mahjong Scouter & True Error Rate 'Shirokun!' Mortal Ver.

---------------------------------------------------------------------------- An extension that enhances "Mortal", the mahjong AI log review platform. https://mjai.ekyu.moe/ ■ "Mahjong Power Radar" ・Automatically converts your skill level into rank equivalents for "Mahjong Soul" and "Tenhou". ・Analyzes everything from single-match evaluations to long-term overall skill trends. ■ "Shin Mistake Rate" ・Highlights critical mistakes using the unique "Shin Mistake Rate" metric. ・Pinpoints your weaknesses through multi-angle analysis, including major blunders, performance when facing Riichi, and Shanten-based stats. ■ "Auto-Save" Match History & Reports ・Automatically logs and accumulates all your game results just by viewing them. ・Click the icon in the toolbar anytime to view your "Comprehensive Report" and visualize your growth. ■ "Smart Review" ・Categorizes mistakes with color-coding and expands them automatically so you can spot errors at a glance. ・Adds a "Play" button next to each choice to replay the situation with a single click. ■ "Customization" ・Freely adjust the loss threshold used to classify moves as mistakes. ・Choose the radar's evaluation standard between AI Match Rate and Mistake Rate. -------------------------------------------------------------------------- This mahjong tool was released in September 2025. Statistics obtained and used by "Shiro-kun!" are published at the following URLs: ↓ Check the correlation between player ranks and various mistake rates: https://note.com/oreno_seika/n/ne3d097fa248a ↓ Statistical source data (distributed as a ZIP file): https://note.com/oreno_seika/n/na0e55d71a323 The sister extension "AI Mahjong Power Radar & Shin Mistake Rate 'Shiro-kun!' BigCoach (gokujan emergency fix) Edition" is also available: https://chromewebstore.google.com/detail/ohjjcclpfiplgmmijgcpapikfpbokihl -------------------------------------------------------------------------- Update Information v26.10.1 You can now check your results for a specified period. v26.8.26 Added announcements. v26.8.25 Added announcements. v26.7.12 Fixed a bug causing desynchronization with the replay viewer in hands where a Kan (Kong) occurred. v26.4.29 Added a link to the statistics page. v26.3.29 Added support for English and Korean. ※ Note: This extension will not work unless the Mortal homepage language is set to Japanese. v25.12.23 Added support for Chinese (Simplified and Traditional). ※ Note: This extension will not work unless the Mortal homepage language is set to Japanese. v25.12.18 Made hands with major blunders the default view. Adjusted some logic. v25.11.26 Significantly adjusted the logic for the Mahjong Power evaluation feature. v25.11.25 Added the "Shiro-kun! Report" display at the bottom of the Mortal review page. Fixed bugs. Removed rank evaluations based on AI Match Rate. v25.11.19 Significantly adjusted the logic for the Mahjong Power evaluation feature. v25.11.12 Fixed a bug where the major blunder rate was not being correctly recorded in the Shiro-kun! Report. v25.10.31 ・Added the "Questionable Move (Mistake Threshold +5)" label. ・Fixed a bug where some match results were not recorded properly. v25.10.26 ・Item names can now be customized freely. v25.10.19 ・Added 4 defense-related metrics, such as Deal-in Mistake Rate. Fine-tuned some item names. v25.10.17 ・Added the Fold Rate metric. Fine-tuned some item names. v25.10.16 ・Clicking the character image on the log analysis page now opens the options menu or overall statistics. v25.10.15 ・Added metrics such as Fold Decision Mistake Rate, and adjusted the UI and options. v25.10.13 ・Added new mistake factors and adjusted the UI. v25.9.30 ・Fixed an issue where West Round was listed before East Round in the Shin Mistake Hand panel. v25.9.28 ・Added the Call (Furo) Mistake metric. ・Adjusted the UI. v25.9.27 ・Added mistake labels. ・Added an option to treat identical mistake content as duplicates even if the HTML differs.