Oppondexas9

Oppondexas9 is a practical mahjong tool for profiling opponent behavior. It focuses on recording how all four seats discard and play, turning “read by feel” into “predict by habit.”

• Quickly mark opponent habits: early middle/terminal discards, call frequency, riichi aggression, defensive folding, late-game trade-offs, and more
• Auto-build style portraits across Attack, Defense, Stable, and Aggression, with plain-language summaries
• Separate early / mid / late turns to tell whether an opponent is pushing, improving, or folding
• Accumulate multi-game data so regular-table habits get more accurate over time
• Custom tags, game archives, favorite opponent dossiers, and data backup

Built for players who want to read opponents faster at the table and make better prediction and defense decisions.