GOLDEN's Coreforge · Founder: Oikantik Basu
CoreForge, the dMAT practice platform I founded
Practice for the complete dMAT, the digitaler Mastertest for admission to German Master’s programmes: unlimited, freshly generated Core Module tasks, the General Academic Module and every subject module, all with real exam timing.
Applicants to German Master’s programmes. From the SoSe-2027 intake, India APS applicants whose previous degree is in Engineering, Commerce / Accounting / Finance / Economics or Business / Management must sit the dMAT (General Academic Module).
Free plan — no card, no expiry. See pricing (opens in new tab)
Unofficial practice tool. Not affiliated with g.a.s.t., TestDaF-Institut, APS, or the DAAD.
Inside CoreForge

Homegoldensdmat.in/welcome (opens in new tab) 
The daily demo on a phonegoldensdmat.in/demo (opens in new tab) 
Brain Gymgoldensdmat.in/brain-gym (opens in new tab) 
Every subject modulegoldensdmat.in/modules (opens in new tab) 
Home on a phonegoldensdmat.in/welcome (opens in new tab) 
The public daily demogoldensdmat.in/demo (opens in new tab) 
Free plan and Progoldensdmat.in/pricing (opens in new tab)

Homegoldensdmat.in/welcome (opens in new tab) 
Brain Gymgoldensdmat.in/brain-gym (opens in new tab) 
Every subject modulegoldensdmat.in/modules (opens in new tab) 
The public daily demogoldensdmat.in/demo (opens in new tab) 
Free plan and Progoldensdmat.in/pricing (opens in new tab)

Home on a phonegoldensdmat.in/welcome (opens in new tab) 
The daily demo on a phonegoldensdmat.in/demo (opens in new tab)
Everything in the box
Free daily demo (opens in new tab)
10 originally generated questions a day at real exam timing. No account, no card.
Generated, not stored (opens in new tab)
Unlimited, freshly generated Core tasks in the official formats, each checked by its generator before it is served.
Full timed Core Module, on the Pro plan (opens in new tab)
Three Core subtests of 20 tasks in 25:00 each, building up to the full sitting of about 3.5 hours.
Every subject module, on the Pro plan (opens in new tab)
The General Academic Module across all 8 topic areas, Computer Science, five Battery Science tracks and Data Science (modeled format).
Brain Gym (opens in new tab)
Forty short, seeded drills for speed, attention, memory and reasoning, ten levels each. One round a day needs no account.
Do I need the dMAT? (opens in new tab)
Type your degree and see it matched against APS India’s official list of affected fields.
Which module do I need? (opens in new tab)
Three questions about your target programme and APS route, checked against the official module table.
Feedback and review (opens in new tab)
Instant feedback after each answer and a full answer review; Pro adds Learn, analytics and a mistakes notebook.
Installable, offline-ready (opens in new tab)
Installs as an app with offline support, and a Supabase backend syncs your practice across devices.
Seven dMAT guides (opens in new tab)
Seven guides on registration through g.a.s.t., timing, scoring, which module you sit and the APS India process.
- subject modules, every one in the official table
- 8
- Core Module subtests, each at exam timing
- 3
- per Core subtest of 20 tasks
- 25:00
- the real subject-module slot
- 90 min
- free demo questions a day, no account needed
- 10
- Brain Gym drills, ten levels each
- 40
Free, public resources
dMAT news & updates (opens in new tab)
Curated dMAT and APS India updates, each linked to the official source it came from.
RSS feed (opens in new tab)
The same news hub in any feed reader.
Free concept lessons (opens in new tab)
Checked links to Khan Academy and other open lessons, sorted by module.
Hindi explainer (opens in new tab)
हिंदी में: what the dMAT is, who has to sit it, what the paper covers and how it is scored.
Exam pattern (opens in new tab)
The structure, timing and format of the full sitting.
General Academic Module (opens in new tab)
What the module is and how to practise it.
Public changelog (opens in new tab)
CoreForge’s own release notes, listed separately from the dMAT announcements.
How the questions are made
The 3 Core subtests are generated, not stored: every task is freshly generated in the official format and checked by its generator before it is served.
Figure Sequences. Passes a strict inferability check: the rule must be uniquely deducible.
Mathematical Equations. Brute-forced to guarantee exactly one whole-number solution.
Latin Squares. Verified so every valid completion agrees on the answer cell.
General Academic Module questions keep the official shape, four options with exactly one correct, and each one passes a validator before it ships.
Built with
- TypeScript · Question-generation algorithms, built with Claude
- Supabase · Backend with cross-device sync and leaderboards
Follow the marker
Four frames, one rule. Pick the cell the marker lands on next.
Where does the marker land in frame 5?
Loading today’s pattern…
A small puzzle I wrote for this page in the style of a figure sequence, not a CoreForge question: CoreForge’s own tasks are harder and timed. A new pattern every day, generated in your browser, and only shipped when every rule that fits the four frames agrees on the fifth.
Free to start
The Free plan never expires and needs no card; Pro unlocks the rest.
Free plan
Free plan — no card, no expiry
- Core Module practice: Figure Sequences, Mathematical Equations, Latin Squares (easy, 3 per set)
- Your results, answer review and history
- Brain Gym levels 1–3
- No card, no expiry
CoreForge Pro
Current prices are on the pricing page.
- Every difficulty and set size, plus the full timed Core Module
- General Academic Module passages across all 8 topic areas
- Every subject module in the official table
- Unlimited mock exams and the full dMAT simulation
- Learn, analytics, mistakes notebook, weekly leagues
- AI tutor
- Monthly or yearly, cancel in one tap
- 7-day money-back guarantee on your first purchase
Changelog
Brain Gym, subject skills and an index of outside material
Seeded speed and attention drills, optional streaks and daily goals with a calm mode that turns every animation off, topic drills for missed subject questions, and a checked index of free outside lessons.
Read the entry (opens in new tab)The Free plan replaces the trial: Core Module practice for every account
Every account gets Core Module practice at easy difficulty in 3-question sets, with results, answer review and history — no card, no expiry.
Read the entry (opens in new tab)Every published dMAT subject module is now on CoreForge
Computer Science, Data Science and all five Battery Science tracks join the General Academic Module.
Read the entry (opens in new tab)GAM practice now spans all 8 official topic areas
Mathematics, computational sciences, natural sciences, engineering, business administration, economics, social sciences and humanities, each with its own passages.
Read the entry (opens in new tab)
Latest dMAT news
- Brain Gym, subject skills and an index of outside material (opens in new tab)
- The Free plan replaces the trial: Core Module practice for every account (opens in new tab)
- Every published dMAT subject module is now on CoreForge (opens in new tab)
- GAM practice now spans all 8 official topic areas (opens in new tab)
Questions
What is the dMAT?
The digitaler Mastertest (dMAT) is an aptitude test that international applicants to German Master’s programmes may be asked to sit. g.a.s.t. and the TestDaF-Institut run it, with DAAD support. You sit the Core Module and one subject module in a single session of roughly 3.5 hours, break included; it is taken on a computer, in English, with single-choice answers.
More on goldensdmat.in (opens in new tab)Who has to sit it from SoSe 2027?
From the Summer Semester 2027 intake, India APS applicants whose previous degree is in Engineering, Commerce / Accounting / Finance / Economics, or Business / Management must take the dMAT with the General Academic Module. Bachelor’s and PhD applicants and officially confirmed exchange, partnership or double-degree students are not affected. The ‘Do I need the dMAT?’ checker matches your degree against APS India’s official list; confirm on aps-india.de before you act.
More on goldensdmat.in (opens in new tab)What does the Free plan include?
Core Module practice (Figure Sequences, Mathematical Equations and Latin Squares) at easy difficulty in 3-question sets, plus your results, answer review and history, and Brain Gym levels 1 to 3. No card, no expiry. The public demo also gives anyone 10 questions a day without an account.
More on goldensdmat.in (opens in new tab)What does Pro add?
Pro adds every difficulty and set size, the full timed Core Module, the General Academic Module across all 8 topic areas, every subject module, unlimited mock exams and the full dMAT simulation, Learn, analytics, a mistakes notebook, weekly leagues and an AI tutor. It is monthly or yearly, cancels in one tap and has a 7-day money-back guarantee on the first purchase. Current prices are on the pricing page.
More on goldensdmat.in (opens in new tab)Is CoreForge official?
No. Unofficial practice tool. Not affiliated with g.a.s.t., TestDaF-Institut, APS, or the DAAD. Question formats follow publicly documented dMAT task types, and all questions are originally generated.
More on goldensdmat.in (opens in new tab)How are the questions made?
Core tasks are freshly generated in the official formats rather than drawn from a stored bank. Figure sequences must pass a strict inferability check so the rule is uniquely deducible, equation systems are brute-forced to have exactly one whole-number solution, and Latin squares are verified so every valid completion agrees on the answer cell. General Academic Module questions keep the official shape, a reading passage with single-choice questions of exactly four options and one correct, and each one passes a validator before it ships.
More on goldensdmat.in (opens in new tab)What is Brain Gym?
Forty short, seeded drills for the speed, attention, memory and reasoning the Core Module leans on, ten levels each. One round a day plays without an account, and the Free plan opens levels 1 to 3. It is practice-adjacent, not part of the exam.
More on goldensdmat.in (opens in new tab)Is there a Hindi explainer?
Yes. The ‘Do I need the dMAT?’ page has a Hindi summary (हिंदी में) of what the dMAT is, who has to sit it, what the paper covers, fees and registration, and scoring. The exam itself is sat in English.
More on goldensdmat.in (opens in new tab)Try it today
10 questions a day, no account, no card.
Unofficial practice tool. Not affiliated with g.a.s.t., TestDaF-Institut, APS, or the DAAD. Question formats follow publicly documented dMAT task types; all questions are originally generated. dMAT is a trademark of its owners.