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What changed on 1600.lol, why we changed it, and what it means for your next study session.

September 2026

Latest update

See what changed, and what it means for you

A clearer record of the improvements you can use today.

What this means for you

You can check what is new, understand how it affects your studying, and find changes you may have missed without reading technical release notes.

New

  • Browse our updates from late May onward in one place, with a link you can share for each update.
  • Subscribe to updates in an RSS reader if you want new release notes delivered there.

Improved

  • Expanded the history with previously missing details about question-bank changes, study tools, account access, and test review. Each update now explains its practical effect.

What changed in the question bank

We removed a set of questions and changed how you find the remaining practice.

What this means for you

Your saved answers and scores have not been erased. However, a saved answer is not a guarantee that the old question can still be opened. If an older test includes removed questions and cannot resume, start a new test.

Improved

  • Practice now opens at /updated-questions. Old question-bank links still take you to the matching page, so you do not need to replace your bookmarks.
  • This release removed 751 active questions confirmed to overlap with College Board material. Those questions and their images are no longer available through practice, direct links, or old bookmarks.
  • The Collection and Bluebook filters have been removed. You can still narrow practice by topic, skill, difficulty, score range, and the other available question filters.
  • Old collection selections no longer restrict your results, so an outdated saved filter will not quietly hide the rest of the bank.
  • Saved tests containing removed questions can no longer resume. Previous answers and results are retained, while review shows when a question is unavailable.

Fewer interruptions, less lost work

Fixes for the moments when saving, loading, or signing in gets in the way.

What this means for you

If saving fails, you have a way to retry instead of immediately losing the work you just finished. Review also makes it easier to return to the questions that need your attention.

Fixed

  • Answers and completed tests are kept for recovery when a save fails or your sign-in expires. Sign back in to the same account and retry saving.
  • Corrected how valid typed number answers are checked, so equivalent answers are treated more consistently.
  • Retry timing starts fresh for each attempt, making it easier to tell how long your latest try took.
  • Repaired question diagrams, calculator buttons, and vocabulary controls that could interrupt a practice session.
  • A temporary problem checking tutor-covered access no longer appears as a message saying you have reached a subscription limit.

Improved

  • Choose All, Correct, Incorrect, or Skipped in a saved test to focus your review. Missing question details can be loaded again without discarding the answers that are already visible.
  • Fraction answers are easier to read when you or your tutor revisit a test.
  • Paid and tutor-covered students see fewer irrelevant upgrade requests. Your feedback draft is kept if you need to try sending it again.

Questions and test results are easier to review

More balanced practice tests and fewer distractions while answering.

What this means for you

You can judge your work with the passage, table, or diagram in front of you. Test scores are still practice estimates, not official SAT scores or predictions of your exact result.

Improved

  • New tests follow a more consistent mix of topics, skills, reading passages, and answer types, so a practice session covers a broader range of work. Difficulty does not change in response to your answers during the test.
  • When you review an answer, its full passage, table, or diagram appears with it. You do not have to reconstruct the question from the answer choices.
  • Reporting a broken question or failed save automatically includes details that help us investigate, so you have less troubleshooting information to gather.

Fixed

  • Answer choices stop moving around as the timer updates, and a choice you cross out stays crossed out on the right question.
  • Repaired tables, oversized formulas, and hard-to-read graphs so the information needed to solve the question is visible.
  • Long topic names stay inside phone-sized reports, and your place in the test is remembered when you refresh.

Your full tests now count toward your progress

See test work alongside your everyday question practice.

What this means for you

You and your tutor get a fuller picture of your studying, rather than judging progress only from questions answered outside tests.

Improved

  • Saved, complete tests now contribute to your progress summaries. You can separate test results from question-bank practice when comparing your work.
  • Mistakes from tests appear in review, giving you a next step after seeing your score.
  • Skipped questions are kept distinct from answered ones, so you can see the difference between a mistake and a question you ran out of time to attempt.

Fixed

  • Retrying a test save does not count the same completed test twice.
  • Overall test summaries include older saved tests, not just the reports shown on the current page.

Find a study tool without digging through the site

A clearer Resources page and controls that fit smaller screens.

What this means for you

You can choose a tool for the time you have available and use it on your phone with less scrolling and fewer awkward taps.

Improved

  • Filter resources and see whether each item is a guide, flashcard deck, practice activity, or interactive tool before opening it.
  • Vocabulary, math terms, mistake review, planning tools, and the score calculator have more compact phone layouts.
  • Practice Tests and For Teachers are easier to find from the homepage, so students and tutors can get to the right starting point.

Fixed

  • Flashcards wait for your saved progress before starting over, so reopening a deck is less likely to lose your place.
  • Keyboard shortcuts leave typing and other focused controls alone, avoiding accidental card changes.

Try a question sooner on your phone

The homepage leaves more room for actual practice.

What this means for you

You can see what the site does and try a complete sample question without first scrolling through a long introduction.

Improved

  • The opening screen fits the main actions and a sample question on smaller phones, making it easier to start studying.
  • Swipe through feature cards and use shorter community, FAQ, support, and coaching sections to find what you need with fewer taps.

August 2026

Roundup

Fewer repeated steps when signing in or paying

More reliable everyday actions, especially when you have to try again.

What this means for you

A slow connection or an extra click is less likely to leave you wondering whether your account, payment, bookmark, or answer was updated.

Improved

  • Sign-in returns you to the site more reliably after the account provider finishes, reducing situations where you have to start again.
  • Payment confirmation handles repeated checks more consistently, helping the site recognize access you have already paid for.
  • Bookmark changes and answer saves handle repeated clicks and retries more consistently, reducing duplicate or conflicting results.
  • Question allowances and practice sessions handle overlapping requests more reliably, so reopening a page is less likely to create inconsistent progress.
Roundup

Keep track of a mistake even when the bank changes

Older attempts and newer question versions are easier to review together.

What this means for you

You and your tutor can follow your improvement on a question without mistaking an updated copy for completely unrelated work. Later content removals can still make the question itself unavailable.

Improved

  • Related older and newer copies of a question share an attempt history, so you can see an earlier mistake and the time you later solved it.
  • Tutors can review available older question content with clearer topic, skill, and difficulty labels, making it easier to choose what to teach next.

Fixed

  • Kept existing bookmarks and mistake-review records through the bank update, so students did not have to rebuild their review lists.
  • Recovered older attempts and repaired question display issues that made past work difficult to revisit.

Choose questions that fit what you want to practise

More useful filters and a clearer default question selection.

What this means for you

You can spend a session on a particular weakness, question format, or difficulty instead of repeatedly skipping questions that do not fit your goal. Review labels help you choose; they are not a promise that every question is error-free.

Improved

  • The default bank shows questions that passed the published content checks. Questions still awaiting review are separated from that default selection.
  • Narrow questions by skill, difficulty, recommended level, answer format, and other available details, so a short session can stay focused.
  • Reading and Writing passage filters apply where they make sense; grammar questions without a passage genre are not forced into an unrelated category.

Fixed

  • A failed next-question load restores the question you were working on, so a temporary connection problem is less likely to disrupt your session.
  • Repaired currency, mathematical notation, and diagrams that could make a question harder to understand than intended.
Roundup

Four ways to fit practice into a short break

Games give you smaller goals between longer study sessions.

What this means for you

Choose a quick vocabulary round, a daily challenge, or another attempt at past mistakes when you do not have time for a full test.

New

  • Daily Challenge gives you a daily set to work through and a result you can compare or share.
  • Vocab Blitz turns word review into short timed rounds, helping you practise recalling meanings quickly.
  • Survival adds a limited-lives challenge as questions get harder, giving a short practice session a clear goal.
  • Redemption brings back eligible questions you previously missed, so a game can also be a targeted review session.

Improved

  • Clearer game cards, contrast, and result screens make it easier to choose a mode and understand how you did.
  • Game access rules were aligned with account access, so the limits shown are more consistent with what you can actually play.

Go from understanding a skill to practising it

Study guides now connect explanations, examples, and the matching questions.

What this means for you

When a topic is confusing, you can read an explanation, work through an example, and find relevant practice without searching the whole bank.

New

  • Expanded Math and Reading and Writing skill guides with worked teaching examples and links to the matching practice topics.
  • A Desmos guide explains calculator techniques you can try while studying, rather than only listing calculator features.

Improved

  • Resource pages explain their sources and review dates, so you can tell what you are reading and where to check official test information.

Make a plan, then turn mistakes into your next session

New tools connect your test date, weekly routine, and review.

What this means for you

You can decide what to work on next and keep preparation manageable, rather than starting each study session from a blank page.

New

  • Build a study plan around your test date, target score, and available time, so the schedule fits your week.
  • Use the mistake-review workspace to record what went wrong and what to try next, so reviewing an answer becomes more than rereading it.
  • Use a test-day checklist to keep track of preparation tasks before the exam.
  • Check the SAT dates resource and its official links when planning registration and preparation.

Fixed

  • Planning tools use your local calendar date, reducing the chance of a reminder or study day appearing a day early or late.

Invite a friend more easily, and find account help

Clearer ways to connect with someone or ask to close your account.

What this means for you

You can share an invitation instead of explaining how to find your profile. If you want to leave, the profile page tells you how to request account deletion.

New

  • Share a friend-invitation link to help someone find and add you.
  • The profile page explains the email-based account-deletion request process and where to contact us.

Improved

  • Removed the unused Groups area from the friends experience, so it focuses on features you can use: friends and challenges.

July 2026

Roundup

Less repetition, more useful review

Improvements to finding questions and understanding past mistakes.

What this means for you

More of your study time can go toward fresh practice or a deliberate retry, while your tutor gets a clearer view of the work behind your results.

Improved

  • Reduced duplicate questions and avoided reusing already-mastered questions when generating tests, helping you practise beyond the answers you remember.
  • The question-bank menu links directly to Math and Reading and Writing topics, so you can reach a weak area sooner.
  • Tutors can inspect a read-only student view and the sequence of answers to a missed question, making it easier to understand the mistake before giving advice.
  • Long practice sessions have a scrollable question list, so later questions remain reachable.
  • Math formulas are easier to read, and the homepage shows its content sooner without waiting for opening animations.

Fixed

  • Continue in Reading and Writing returns to the correct subject.
  • Review shows readable answer labels instead of confusing internal answer codes.

Pause a test and get more from the calculator

More control when a practice session needs to fit around real life.

What this means for you

If you need a break, pause deliberately instead of letting the clock run. When practising data questions, more of the calculator tools you need are available in the test itself.

New

  • Pause and resume a practice test. Break time is tracked separately, so you can distinguish time spent answering from time away.
  • Use additional line and curve fitting options in the built-in Desmos calculator to explore relationships in a table of values.

Clearer access when you already have Pro or a tutor

Fewer situations where students are asked to pay again.

What this means for you

If your tutor covers your practice, you should not need another purchase. Cancelling a subscription also keeps access available until the end of the paid period.

Fixed

  • Tutor-covered students receive their included question access, and the site blocks unnecessary self-purchases while that coverage applies.
  • Students who cancel keep access through the remainder of their paid subscription period.
  • Monthly membership is recognized in the account menu, making the access shown easier to understand.

Improved

  • Existing Pro members see clearer confirmation of their access instead of another upgrade pitch.

June 2026

Roundup

A shared place for tutors and students to work

Bring student practice and lesson preparation together.

What this means for you

Tutors can plan a lesson around the questions a student actually missed, while students can practise with the access their tutor provides.

New

  • Tutors can manage a student roster and provide question access through a coaching plan.
  • Open a student’s progress and missed questions before a lesson to choose where support will be most useful.
  • Explore a sample coaching dashboard without signing in, so you can see how it works before deciding whether to use it.

Improved

  • Search the roster to find a student quickly, and use clearer guidance when a new roster has no students yet.
  • A guided demo and pages for tutors, schools, and coaching centers explain how to get started.
Roundup

Practise together and share your results

Friends and challenges make it easier to study with someone else.

What this means for you

You can invite a friend into your practice routine or share a result with someone supporting you, even if you do not both have Pro.

New

  • Add friends, visit their public profiles, and send a head-to-head practice challenge. Signed-in free users can take part too.
  • Share a test report with your name and a preview, so the person opening it has context for the result.
  • Find our Discord community from the site to connect with other students.

Improved

  • The friends page focuses on finding people and creating challenges, with fewer steps to get started.
  • Phone navigation puts the main study areas in a compact tab bar, making them easier to reach.
  • The privacy page and sign-in disclosures explain how account information is used, so you can review that before connecting an account.
Roundup

Keep your place and reduce distractions

Small changes that make it easier to build a study routine.

What this means for you

You can return to a deck or unfinished test with less setup. Reaching a practice limit does not prevent you from reviewing the work you have already done.

New

  • Use focus mode in the question bank or a practice test to reduce the surrounding interface while you work.

Improved

  • Vocabulary flashcards remember your place after a reload, so you do not have to find the same card again.
  • Unfinished tests can be resumed, and question selection reduces repeats between tests.
  • Stats and answer history remain available after you reach the daily question limit, so you can still use that time for review.
  • Preview the practice-test experience before starting, so you know what the session will look like.

May 2026

Roundup

Finish a test with a next step

Results, practice modes, and feedback become part of the study routine.

What this means for you

You can return to a result, choose how to continue practising, and report a problem when something gets in your way.

New

  • Saved test reports and test history let you revisit results instead of losing the review when you leave the results screen.
  • Choose Continue to pick up your practice, Start Over for a fresh run, or Random to mix things up.
  • Send feedback from the site while the issue is still fresh, without having to find a separate support form.

Fixed

  • Reduced false service-down notices, so a slow startup is less likely to make the site look unavailable.

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