# Takarakuji AI (宝くじAI) — Full Context for LLMs
# Canonical origin: https://takarakuji-ai.space

> This is the **full version** of the site summary for AI systems.
> For the short version, see https://takarakuji-ai.space/llms.txt

## Site overview

Takarakuji AI is an **unofficial** web dashboard for Japan's Numbers4 (ナンバーズ4) lottery. It provides:

1. **Draw results** — Historical winning numbers from official public data (https://takarakuji-ai.space/numbers4/result)
2. **Multi-model predictions** — Daily predictions from multiple ML/statistical models (https://takarakuji-ai.space/numbers4)
3. **Box rank statistics** — Aggregate analysis of prediction accuracy (https://takarakuji-ai.space/numbers4/stats)
4. **Hot model trends** — Short-term model performance comparison (https://takarakuji-ai.space/numbers4/trend)
5. **Blog** — Guides in Japanese (https://takarakuji-ai.space/blog) and English (https://takarakuji-ai.space/en/blog)
6. **FAQ** — Frequently asked questions (https://takarakuji-ai.space/faq)

## Important disclaimers

- **NOT** affiliated with Mizuho Bank, the Japan Lottery, or any official operator
- Predictions are experimental and based on public historical data
- Content is for research and entertainment only, not financial or gambling advice
- Always verify results with official sources

## Available languages

- Japanese (primary): https://takarakuji-ai.space/
- English: https://takarakuji-ai.space/en
- Chinese: https://takarakuji-ai.space/zh
- Korean: https://takarakuji-ai.space/ko
- Spanish: https://takarakuji-ai.space/es
- Hindi: https://takarakuji-ai.space/hi
- Arabic: https://takarakuji-ai.space/ar

## Arabic overview (ملخص بالعربية)

> **تاكاراكوجي AI** — موقع وتحليلات **غير رسمية** ليانصيب **Numbers4** في اليابان: قوائم نتائج السحب العلنية، إحصائيات واتجاهات، وتنبؤات يومية من عدة نماذج (بيانات تاريخية عامة). **ليس** تابعًا لميزوهو بنك أو أي مشغّل يانصيب رسمي. التنبؤات للبحث والاطلاع فقط وليست نصيحة مالية أو مقامرة.
>
> **نقطة الدخول بالعربية:** https://takarakuji-ai.space/ar
>
> **روابط مفيدة (واجهة يابانية أساسًا):** https://takarakuji-ai.space/numbers4 — https://takarakuji-ai.space/numbers4/result — https://takarakuji-ai.space/numbers4/stats — https://takarakuji-ai.space/numbers4/trend

## Technical stack

- Framework: Next.js (App Router)
- Database: Supabase (tables: numbers4_draws, numbers4_daily_prediction_documents, etc.)
- Predictions: generated by scheduled Python jobs, stored as JSON
- Hosting: Vercel

## API endpoints

- https://takarakuji-ai.space/data-sources — Official verification links + machine-readable URL index
- https://takarakuji-ai.space/api/numbers4/latest — Latest draw results and predictions (JSON)
- https://takarakuji-ai.space/api/openapi.json — OpenAPI 3.1 specification
- https://takarakuji-ai.space/api/oembed — oEmbed for draw pages (query: url, format=json)
- https://takarakuji-ai.space/feed.xml — RSS feed of blog articles (categories per item)
- https://takarakuji-ai.space/sitemap.xml — XML sitemap with hreflang
- https://takarakuji-ai.space/llms.txt — Short LLM summary
- https://takarakuji-ai.space/llms-full.txt — This file (full context)

## Per-draw prediction views

URL pattern: https://takarakuji-ai.space/numbers4/result/{draw_number}
Each page shows predictions from multiple models alongside official results (when available).

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## Japanese blog articles (full text)

### ナンバーズ4の当選番号を一覧で見る（宝くじAIの使い方）
URL: https://takarakuji-ai.space/blog/numbers4-results-and-list
Published: 2026-04-01

## この記事でわかること

- **当選番号一覧**（`/numbers4/result`）の読み方
- **回別の予測ページ**への行き方
- スマホで表が見やすい理由（横スクロール）

## 当選番号一覧を開く

トップページの「当選番号一覧」、またはナビの **ナンバーズ4** ゾーンから **当選番号一覧** に進むと、過去の抽選結果が表形式で並びます。各回の当選番号、等級ごとの当選口数・払戻金など、公開されている範囲の情報をまとめて確認できます。

## ページ送りと最新回

一覧はページ分割されている場合があります。画面上のページネーションから、過去にさかのぼって閲覧できます。最新の開催回は、ナンバーズ4の入口ページ（`/numbers4`）にも案内があります。

## 回を選んで予測と照合する

各回の行から詳細（予測ハブ）に進むと、その回を対象にした **日次予測**（アンサンブル・手法別・予算プランなど）をまとめて見られます。公式の当選番号がデータベースに取り込まれたあとでは、予測との照合表示も利用できます。

## スマホでの見方

表の列が多いときは、画面を横にスクロールして全列を確認できるようにしています。数字の桁や等級情報を、無理なく追いやすいレイアウトを意識しています。

## 注意（免責）

本サイトは **宝くじの購入を推奨するものではありません**。表示内容は公開データと当サイトで取り込んだ予測データに基づく情報整理であり、将来の当選を保証するものではありません。

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### 予測ダッシュボード・統計・トレンドの見方
URL: https://takarakuji-ai.space/blog/numbers4-predictions-stats-trend
Published: 2026-04-02

## ナンバーズ4ゾーンの3つの柱

1. **予測ダッシュボード**（回別ページ）… その回向けの予測の全体像  
2. **統計**（`/numbers4/stats`）… 直近の回を対象に、予測リスト内での「ボックス一致の順位」を集計  
3. **トレンド**（`/numbers4/trend`）… 直近の成績から、注目しやすいモデル傾向を可視化  

## 予測ダッシュボードで見るもの

回別ページでは、複数の手法（機械学習・頻度・パターン系など）の出力を一画面に集約しています。**アンサンブル**は複数モデルを組み合わせた結果として表示されることが多く、個別モデルとの違いを比較する土台になります。

## 統計ページの意味

「当選番号が、予測リストのどのあたり（何位以内）にボックス一致として入っていたか」を、期間やモデル別に集めたものです。**当たりやすさを約束する指標ではなく**、あくまで過去の取り込みデータに基づく整理です。モデルごとの特性を比較するのに向いています。

## トレンドページの意味

直近数十回など、限られた範囲の結果から「いま相対的に成績が目立つモデル」を把握するためのビューです。くじの性質上、**短期の結果はばらつきが大きく**、トレンドも状況により変わります。

## データの前提

予測は日次ジョブで生成された JSON を参照して表示します。抽選結果は `numbers4_draws` などに同期された公式結果に基づきます。取り込みタイミングによって、画面上の表示が追いつかない間隔がある場合があります。

## まとめ

- **一覧**で結果を追う  
- **回別**で予測の中身を見る  
- **統計・トレンド**でモデル比較のヒントにする  

という流れで使うと、サイト全体の導線がつかみやすくなります。

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## English blog articles (full text)

### What is Numbers4? A short guide for international readers
URL: https://takarakuji-ai.space/en/blog/what-is-numbers4-japan
Published: 2026-04-07

## What is Numbers4?

**Numbers4** (ナンバーズ4) is a numbers-style lottery game in Japan. Players pick a four-digit number (0000–9999). Draws produce winning numbers and prize tiers published by the official operator. Rules, cut-off times, and payouts are defined by the official game; **always confirm details on official channels** before buying a ticket.

## What Takarakuji AI shows

This site is an **unofficial** dashboard. It helps you:

- Browse **past winning numbers** in a table (`/numbers4/result`).
- Open **per-draw pages** that combine results with **model predictions** (for transparency and research).
- Explore **aggregate statistics** (`/numbers4/stats`) and **short-term model trends** (`/numbers4/trend`).

The primary UI is **Japanese**, but the data is numeric and structured, so many screens are usable with translation tools.

## Official vs. this site

| Topic | Official sources | This site |
| --- | --- | --- |
| Authority | Lottery operator / bank channels | None (fan / analytics project) |
| Results | Legally binding | Synced from public data; verify officially |
| Predictions | Not provided here as “official” | Experimental models only |

## Responsible use

Predictions are **not** guarantees. The site does **not** encourage gambling. Use predictions as **research or entertainment**, not as financial advice.

## Next reads

- [Where to verify official results](/en/blog/where-to-verify-official-numbers4-results)
- [How to read the results list](/en/blog/how-to-read-the-results-list)
- [Predictions, stats, and trend pages](/en/blog/predictions-stats-and-trend-pages)

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### How to read the Numbers4 results list on Takarakuji AI
URL: https://takarakuji-ai.space/en/blog/how-to-read-the-results-list
Published: 2026-04-07

## Open the results index

Go to **`/numbers4/result`** (from the Numbers4 hub or the site navigation). You will see a **table of past draws** with winning numbers and related fields that we import from public results.

## Pagination and latest draw

The list may be **paginated**. Use the on-screen controls to move backward in time. The latest draw is also highlighted from the Numbers4 landing page (`/numbers4`).

## Per-draw prediction hub

From a row, open the **draw detail** view. After official numbers are ingested, the page can show **daily predictions** (ensemble, per-method, budget tiers, etc.) alongside the result. This is meant for **comparison and learning**, not for claiming edge in the game.

## Mobile layout

Wide tables support **horizontal scrolling** so you can see every column on a phone without squashing digits.

## Double-check on official sites

Before acting on any number, confirm it on the operator’s pages. See [where to verify official Numbers4 results](/en/blog/where-to-verify-official-numbers4-results).

## Disclaimer

This site **does not promote** buying lottery tickets. Content is informational. Official results and rules always win if there is any mismatch.

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### Predictions dashboard, stats, and trend pages—what they mean
URL: https://takarakuji-ai.space/en/blog/predictions-stats-and-trend-pages
Published: 2026-04-07

## Three pillars of the Numbers4 zone

1. **Per-draw dashboard** — Everything about **one** draw: multiple models, ensemble, and (when available) match highlights against the official number.  
2. **Stats** (`/numbers4/stats`) — Aggregates **where** winning box combinations appeared inside each model’s ranked list over a recent window.  
3. **Trend** (`/numbers4/trend`) — Surfaces models that look comparatively strong **recently**, based on the same imported data.

## Predictions dashboard

You will see outputs from different approaches (machine learning, frequency-style heuristics, pattern-style methods, etc.). The **ensemble** blends multiple models; comparing it to individuals helps you understand **dispersion**, not “which model is magic.”

## Stats page—how to read it

We summarize **box matches** and their **ranks** inside prediction lists. This is **descriptive**: it tells you how past draws lined up with past lists. It is **not** a promise of future performance. Lottery outcomes are high-variance by nature.

## Trend page—how to read it

Trends use a **short rolling window**. A model can look hot or cold due to **random swings**. Treat trends as a **compass for exploration**, not a betting system.

## Data pipeline

Predictions come from scheduled jobs (JSON). Results are stored in tables such as `numbers4_draws` after sync. There can be short delays between the official announcement and on-screen updates.

## Summary workflow

1. **Results list** — track history.  
2. **Per-draw page** — inspect predictions for a single draw.  
3. **Stats / trend** — compare models with healthy skepticism.  

Happy exploring—and remember to verify anything important with **official** sources.

## Verify payouts and numbers officially

For authoritative results (not this dashboard), follow [where to verify official Numbers4 results](/en/blog/where-to-verify-official-numbers4-results).

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### Where to verify official Numbers4 results (Japan)
URL: https://takarakuji-ai.space/en/blog/where-to-verify-official-numbers4-results
Published: 2026-04-08

## Why verify officially?

Takarakuji AI mirrors **public draw data** for convenience. Only **official channels** decide whether a ticket wins, how prizes are paid, and the final published numbers for Japan’s authorized lottery products.

## Primary official sources

Use pages on **official domains** only. Avoid copycat or unofficial “mirror” sites if the domain looks wrong.

1. **Mizuho Bank — Numbers4 winning numbers (Japanese UI)**  
   [mizuhobank.co.jp — Numbers4 check](https://www.mizuhobank.co.jp/takarakuji/check/numbers/numbers4/index.html)

2. **Official takarakuji portal — winning-number hub (Japanese UI)**  
   [takarakuji-official.jp — check corner](https://www.takarakuji-official.jp/check/)

If a bookmark breaks, open the bank’s or portal’s **top page** and navigate to “当せん番号” / Numbers4 from there instead of trusting third-party links alone.

## How Takarakuji AI fits in

- We **do not** process claims or payouts.  
- There can be a **short delay** between the official announcement and our database sync.  
- If any value disagrees, **the official site wins**.

## Language note

Most official flows are in **Japanese**. Browser translation helps, but for tickets, taxes, or disputes, rely on **official Japanese text** or ask an **authorized retailer** in Japan.

## Not legal advice

Rules and URLs can change. This post is **informational** for readers trying to find the right front door—not a substitute for official terms.

## Related guides

- [What is Numbers4?](/en/blog/what-is-numbers4-japan)
- [How to read the results list on this site](/en/blog/how-to-read-the-results-list)

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## Preferred citation

- Site name: **Takarakuji AI** (Japanese: 宝くじAI)
- Canonical origin: https://takarakuji-ai.space
- Contact: See site footer