Dashboard & Auto Draw Update
Your up-to-date draw data centre
Latest results pulled in automatically, past-draw menu, instant number search and live gap tracking in one place.
Launched 9 August 2026Supreme 4D Master Pro — 4D analysis & forecasting software for Singapore 4D players
Thirty years of 4D study by Master Charles Chia, publisher of 4D Winning Box magazine since 1991, built into one cloud platform. Gap charts, a number grader, direct-number analysis and four monthly forecasts, on any phone, tablet or computer.
19914D Winning Box magazine first published
30+ yrsof 4D analysis and forecasting
10 + 4core and special analysis modules
Any devicecloud based, nothing to install
About Supreme 4D Master Pro
Supreme 4D Master Pro was unveiled and launched on 9 August 2026, as Singapore marked its 61st birthday. It is the most powerful 4D analysis and forecasting software we have ever built.
Where earlier tools showed you numbers, this software helps you understand them. It grades, ranks, charts and tracks every number, surfacing the gaps, patterns and trends that the trained eye has always searched for, computed instantly and shown clearly.
Because it lives entirely in the cloud, it runs on any device with an internet connection: no installation, no downloads, always up to date and in sync across your phone, tablet and computer. The latest draw results are pulled in automatically the moment they are released.
Inside the software: ten core modules
Each module serves a distinct part of your analysis routine, and all of them work together.
Analysis
Your 4D Command Centre
Rich graphs with day-by-day and draw-by-draw filters, and clear visual summaries that turn raw results into insight.
Forecasts (Lucky Stars)
Curated monthly 4D picks
The computerised Lucky Stars forecast from 4D Winning Box magazine, with weekly highlights and recommendations.
4D Master's Special Forecast
Built around core 3D numbers
A concentrated forecast built on a carefully chosen core family of 3Ds and its strongest arrangements.
4D Winning Box Forecast
The original flagship method
Introduced in the first issue of 4D Winning Box in January 1991, now brought to a new level in software.
Gap Chart
NotDue, InRange, OverDue or In Coma
A visual map of how long each number family has stayed away, so the status of every number shows at a glance.
Gap Chart (Top 3)
Focused on 1st, 2nd and 3rd prizes
The same gap view sharpened to the top three prizes, for players who set their sights on the big prizes.
Gap Analysis (All Prizes & Top 3)
The complete statistical picture
Measures each family, system or direct number against its own historical range, with bar charts that show when to zoom in.
Direct Number Analysis
High-probability direct numbers
A dedicated study of exact-order numbers, recommending the direct numbers with the strongest record.
Number Grader
Objective A–E grading
Weighs multiple analytical factors into one easy-to-read grade for every system and direct number.
Just added
4D Master's Choice Of The Month1-Digit Special Analysis3-4-Digit Special Analysis2-3-4-Digit Special Analysis
A word from the publisher and developer
The software we have waited 30 years for…
For more than thirty years, the study of 4D numbers has been my craft, my discipline and my life's work. What began as a personal fascination with patterns and probabilities grew, over the decades, into a profession, and in time into a calling to share everything I have learned with fellow 4D enthusiasts across Singapore and beyond.
Read more…
Since January 1991, I have had the privilege of publishing the first lottery magazine in Singapore, 4D Winning Box magazine, a monthly companion for readers who share both the thrill of the game and the discipline of the study behind it. I have computerised the four main 4D forecasts (Choice Of The Month, Lucky Stars, 4D Special and 4D Winning Box) and included them in this software.
Over the years that work has grown to include monthly live webinars, one-to-one consultancy for serious players, and countless hours teaching the art and science of playing 4D. Through all of it, one conviction has never wavered: rigorous analysis, made genuinely accessible, can transform the way we understand, analyse, forecast and play the 4D game.
Master Charles ChiaPublisher, 4D Winning Box • Author, Supreme 4D Master Pro
4D Master's credentials — Master Charles Chia
- Founder, publisher and author of the monthly lottery magazine 4D Winning Box, now in its 35th year of publication. Known for sharp and accurate 4D analyses and forecasts, he is dubbed the 4D Master by his readers.
- Chief 4D Analyst for 4D Winning Box. Designed and introduced the Winning Box forecasts, Choice Of The Month, 4D Master's Special, System Bet Forecasts and Lucky Stars 4D Forecasts.
- Developed and launched Supreme 4D Master Pro in August 2026.
- Co-developed the 4D GrandMaster and Toto GrandMaster software (October 2022) and 4D SuperEase Professional (2005, with Development Works).
- Author of Secret To Winning Lottery (1992) and Secret To Winning Lottery, Part II (1994).
- Has conducted monthly live 4D seminars and Zoom webinars, “Play To Win The Lottery”, since February 1995.
- Contributed weekly 24-hour direct 4D forecasts via IVR, WAP, SMS and i-mode with mfusion Pte Ltd, and launched the Lucky Stars SMS Forecast Interactive Service on 1 October 2009.
- Interviewed by Channel NewsAsia (“Your Money – Betting On Big Bucks”, 30 March 1999), Shin Min Daily (12 November 2001) and MediaCorp RainTree Productions (“Making of the Best Bet”, May 2005).
- Promotes playing the lottery as a pastime and for fun, never as die-hard gambling, and always advises players to play within their means.
- Provides personal 4D number analysis and forecast consultation to 4D enthusiasts.
Letters from Supreme 4D Master Pro users
Subscribers share how they used the software. Every letter is published with the user’s permission.
4478
“I struck multiple Top 3 prizes and won a total of S$21,560!”
我中了多次前三奖，赢得了 $21,560.00 奖金!
After a 1st prize on 2375, Max struck system 4478 (1st prize) and 8947 (3rd prize) in the following two weeks, using the Command Centre, Grader and Gap Charts.
Max Loh (Clementi)
Read Max’s letter9838
“I struck 1st prize on 9838 and won S$4,000!”
我中了头奖 9838，赢得了 S$4,000.00 奖金!
A subscriber since launch day, Berry analysed one of her favourite numbers with the software and struck 1st prize on a $2 big system bet.
Ms Berry Lim (Jurong)
Read Berry’s letterSubscription plans
Full access to every module and forecast, on all your devices. Prices in Singapore dollars.
Best value
12-month plan
S$288
≈ S$24.00 per month
Save S$72
6-month plan
S$148
≈ S$24.67 per month
Save S$32
3-month plan
S$80
≈ S$26.67 per month
Save S$10
1-month plan
S$30
per month
Payment methods
- PayNow / PayLah! to mobile 9387 4088
- Internet fund transfer to POSB Savings 171-392055
- ATM cash deposit to POSB Savings 171-392055
How to subscribe
- Choose your plan.
- Pay by PayNow / PayLah!, internet transfer or ATM.
- WhatsApp your payment screenshot, your name and your email address to 9387 4088.
- Receive your login details by email, then sign in with Member Login.
Frequently asked questions
What is Supreme 4D Master Pro?
A cloud-based 4D analysis and forecasting software for Singapore 4D players, developed by Master Charles Chia, publisher of 4D Winning Box magazine since 1991. It includes gap charts, gap analysis, a number grader, direct-number analysis and four monthly forecasts.
How is the software different from the 4D Winning Box magazine (Flipbook)?
The magazine forecasts are fixed on the day the issue is published and stay the same for the whole month. Supreme 4D Master Pro updates after every draw: the latest results are added automatically, every number shows its current status (NotDue, InRange, OverDue or In Coma), you can see which forecast numbers have already struck, and Master Charles Chia gives weekly recommendations. You can also grade and analyse your own numbers. The magazine is a snapshot on publication day; the software shows what is happening now. Many readers use both: the magazine for the monthly articles, the software to decide what to play each week.
Does the software guarantee a winning number?
No. No software and no analyst can tell you the exact winning number every time. 4D is a game of chance. Supreme 4D Master Pro is a guide and compass that points you to the more probable numbers, rather than playing blindly.
What do I need to use it?
Any phone, tablet or computer with an internet browser. There is nothing to install, and your data stays in sync across all your devices.
How do I subscribe?
Pick a plan, pay by PayNow / PayLah!, internet transfer or ATM, then WhatsApp your payment screenshot with your name and email to 9387 4088. Your login details will be sent to you by email.
Is Supreme 4D Master Pro connected to Singapore Pools?
No. It is an independent analysis tool. It does not sell bets or tickets and is not affiliated with Singapore Pools.
An invitation from Master Charles Chia
I am proud to share with you the culmination of a lifelong journey: Supreme 4D Master Pro. It represents everything I have learned, taught and dreamed of building over more than three decades in this field, bringing together in one elegant cloud platform the analytical depth of a lifetime's study and the ease of use every 4D enthusiast is looking for. It is, without doubt, the finest 4D analysis software I have ever put my name to.
I have great pleasure in inviting you to join our community of 4D enthusiasts by subscribing to the software.
Yours truly,
Master Charles Chia
Contact
NameMaster Charles Chia
Mobile+65 9387 4088WhatsAppChat with usEmailcharles1@win4dtoto.comWebsitewww.win4dtoto.com