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PROJECT.md

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+WordPress plugin for managing Go (Baduk/Weiqi) tournament registrations. Collects player data via frontend forms and exports entries to tournament management systems (Pairgoth, OpenGotha, McMahon, CSV).
+
+**Relevant files:**
+- `main.php` - Plugin entry point with WordPress hooks
+- `go-form-plugin/go-form-plugin.php` - Core plugin logic (forms, entries, EGD integration, exports)
+- `go-form-plugin/database-schema.sql` - MySQL schema for 4 tables (forms, entries, custom_fields, entry_custom_values)
+- `go-form-plugin/export/csv.php` - CSV export handler
+- `go-form-plugin/export/pairgoth.php` - Pairgoth JSON export handler
+- `go-form-plugin/export/opengotha.php` - OpenGotha XML export handler
+- `go-form-plugin/export/mcmahon.php` - McMahon XML export handler
+- `go-form-plugin/export/mcmahon-help.php` - McMahon documentation/reference
+- `go-form-plugin/templates/form-shortcode.php` - Frontend form template
+- `go-form-plugin/templates/settings-page.php` - Admin dashboard template
+- `go-form-plugin/templates/table.php` - Entries table display
+- `README.md` - Full documentation
+
+**Nuances:**
+- Ranks stored as integers (0-47): 0-29=30k-1k, 30-38=1d-9d, 39-47=1p-9p
+- Rating auto-calculated: `rating = (rank * 100) - 900`
+- EGD integration: searches `https://europeangodatabase.eu/EGD/GetPlayerDataByData.php` and `GetPlayerDataByPIN.php`
+- Uses WordPress nonces, `manage_options` capability, `$wpdb->prepare()` for security
+- Foreign keys with CASCADE delete
+
+## To LLM 
+Update this file if the changes you have done are worth updating here. The intent of this file is to give you a rough idea of the project, from where you can explore further, if needed.