The USMLE Step 2 CK exam is a marathon of clinical decision-making, testing your ability to apply medical knowledge to real-world patient vignettes. Success isn't just about what you know; it's about how effectively you can analyze complex scenarios, identify the "next best step," and manage your time under pressure. The single most important tool in your arsenal for this challenge is a robust set of high-quality Step 2 CK practice questions.
But with a sea of options available, choosing the right resources can be overwhelming and lead to inefficient studying. From the gold-standard UWorld to specialized platforms and official NBME assessments, each question bank (Qbank) offers a different approach, level of difficulty, and explanation style. How do you decide which one is the best fit for your learning style, budget, and timeline?
This guide cuts through the noise. We provide an in-depth, comparative analysis of the best sources for Step 2 CK practice questions available today. We move beyond simple feature lists to give you actionable insights, including:
- Honest pros and cons for each platform.
- Strategic use cases (e.g., for building a knowledge base vs. exam simulation).
- Integration tips for a cohesive study plan.
Whether you're starting your dedicated study period or trying to balance prep with clinical rotations, this curated list will help you invest your time and money wisely. Each review includes screenshots and direct links, empowering you to build a question-based study strategy that helps you achieve your target score.
1. UWorld — Step 2 CK QBank and Self-Assessments
UWorld is widely considered the gold standard for Step 2 CK practice questions, and for good reason. Its question bank is renowned for its clinical vignettes that closely mirror the length, style, and difficulty of the actual exam. The platform’s interface is designed to simulate the real USMLE testing environment, helping you build familiarity and reduce test-day anxiety.
The primary strength of UWorld lies in its exceptionally detailed explanations. Each answer choice, whether correct or incorrect, is thoroughly dissected, providing a mini-lesson on the underlying pathophysiology, diagnosis, and management principles. High-yield tables and professional illustrations further clarify complex concepts, making the review process as valuable as the initial problem-solving. Integrating these detailed reviews is a cornerstone of any effective preparation, and you can see how to structure this in a Step 2 CK study schedule.
Key Features and Usage
UWorld offers robust performance analytics, allowing you to track your progress by subject and system, identify weak areas, and compare your scores to the average. Its self-assessment exams (UWSA 1 and 2) provide a 3-digit score prediction that many students find highly correlative with their final score. Access is subscription-based, with packages typically ranging from 30 days to 2 years, often bundled with the self-assessments.
- Pros: Most exam-like questions available; comprehensive explanations with excellent visuals; robust performance tracking and predictive self-assessments.
- Cons: Premium pricing compared to other QBanks; lacks a built-in, searchable reference library like some competitors.
Website: https://medical.uworld.com/usmle/usmle-step-2-ck
2. UWorld — Step 2 CK QBank and Self-Assessments
UWorld is widely considered the gold standard for Step 2 CK practice questions, and for good reason. Its question bank is renowned for its clinical vignettes that closely mirror the length, style, and difficulty of the actual exam. The platform’s interface is designed to simulate the real USMLE testing environment, helping you build familiarity and reduce test-day anxiety.
The primary strength of UWorld lies in its exceptionally detailed explanations. Each answer choice, whether correct or incorrect, is thoroughly dissected, providing a mini-lesson on the underlying pathophysiology, diagnosis, and management principles. High-yield tables and professional illustrations further clarify complex concepts, making the review process as valuable as the initial problem-solving. Integrating these detailed reviews is a cornerstone of any effective preparation, and you can see how to structure this in a Step 2 CK study schedule.
Key Features and Usage
UWorld offers robust performance analytics, allowing you to track your progress by subject and system, identify weak areas, and compare your scores to the average. Its self-assessment exams (UWSA 1 and 2) provide a 3-digit score prediction that many students find highly correlative with their final score. Access is subscription-based, with packages typically ranging from 30 days to 2 years, often bundled with the self-assessments. A dedicated shelf-review mode is also available to target specific clerkship exams.
- Pros: Most exam-like questions available; comprehensive explanations with excellent visuals; robust performance tracking and predictive self-assessments.
- Cons: Premium pricing compared to other QBanks; lacks a built-in, searchable reference library like some competitors.
Website: https://medical.uworld.com/usmle/usmle-step-2-ck?utm_source=openai
3. NBME — Official Step 2 CK Self‑Assessments (CCSSA) and Practice Materials
The National Board of Medical Examiners (NBME) offers the only official practice materials for the USMLE, making their Comprehensive Clinical Science Self‑Assessments (CCSSA) an essential tool for gauging exam readiness. Unlike comprehensive QBanks, NBME forms are designed as milestones, providing a highly accurate snapshot of your performance at a specific point in your preparation. The question style, length, and content focus are directly aligned with the current Step 2 CK blueprint, offering an unparalleled simulation of what you will face on test day.
The primary value of these self-assessments lies in their predictive power. The score reports, especially the newer INSIGHTS format, provide a 3-digit score and detailed feedback on your performance across different systems and physician tasks. Strategically spacing these exams throughout your dedicated study period is a common and effective way to track progress and identify persistent weaknesses. Understanding how to interpret these reports is key, and you can delve into a detailed guide on NBME practice exams for Step 2 to maximize their utility.
Key Features and Usage
The CCSSA forms are purchased individually through the MyNBME portal. Each form contains timed sections that mirror the real exam's structure, forcing you to practice under authentic conditions. While the explanations provided are less detailed than those in UWorld or AMBOSS, their purpose is different. They serve not as a primary learning tool but as the ultimate assessment of your knowledge and test-taking skills before you sit for the actual exam.
- Pros: Most predictive and official measure of exam readiness; identical interface, timing, and question style to the real test; helps build confidence for test day.
- Cons: Not a full question bank for daily practice; explanations can be brief; purchasing multiple forms can become expensive.
Website: https://www.nbme.org
4. AMBOSS — Step 2 CK Qbank + Integrated Medical Library
AMBOSS has carved out a unique space by tightly integrating its high-quality question bank with a comprehensive medical library. This makes it an incredibly efficient tool for both learning and assessment. While UWorld is often the primary Qbank, AMBOSS serves as an outstanding secondary resource for its powerful "learning mode," where key terms in a question stem link directly to relevant articles in its library. This allows for rapid clarification without leaving the question interface.
The platform’s standout feature is its side-by-side article overlays and clinical algorithms, which are excellent for building a strong foundational understanding during clerkships and dedicated prep. Its questions are known for being challenging, often testing one-step-further concepts that solidify knowledge. AMBOSS also offers a self-assessment that provides a three-digit score prediction, which can be a valuable data point when trying to determine what is a good USMLE Step 2 score.
Key Features and Usage
AMBOSS offers over 3,300 Step 2 CK practice questions aligned with the USMLE content outline. Its mobile app provides full offline access, and it integrates with Anki and a Chrome browser extension for seamless learning. Access is subscription-based, with different tiers for library-only access versus library plus unlimited Qbank access. Many students use AMBOSS throughout their third-year clerkships before transitioning to UWorld for dedicated study, or use it as a second pass to solidify weak areas.
- Pros: Powerful integration of Qbank and medical library; excellent "learning mode" for efficient study; great for use during clerkships and dedicated prep.
- Cons: Question style can feel slightly different from the actual exam compared to UWorld; full Qbank access requires a more expensive subscription tier.
Website: https://www.amboss.com/us/usmle/step2
5. Kaplan — Step 2 CK Qbank and Courses
Kaplan is a long-standing name in test preparation, offering a Step 2 CK Qbank that can be used as a standalone resource or bundled with its comprehensive courses. It is often favored by students who benefit from a more structured learning environment, including live or on-demand video lectures and test-taking strategy sessions that go beyond simple question-and-answer review.
The platform’s strength lies in its integrated approach. If you opt for a course, the Qbank serves as a direct application of the concepts taught in the video lectures, creating a cohesive study system. The explanations often include strategy tips, guiding you on how to approach similar questions in the future. This structure can be particularly helpful when learning how to study for Step 2 CK during clinical rotations, as it provides a clear framework to follow during busy schedules.
Key Features and Usage
With over 3,100 practice questions and two full-length practice tests, Kaplan provides a substantial volume of material. Its custom quiz builder and detailed performance reports help you track your progress and focus on specific areas of weakness. Access is available through various subscription lengths, and its mobile app allows for studying on the go.
- Pros: Can be bundled with comprehensive live or on-demand courses; strong focus on test-taking strategy; structured reporting and progress tracking.
- Cons: Question style and difficulty can differ from the real exam and UWorld; promotional pricing fluctuates, so costs can vary.
Website: https://www.kaptest.com/usmle-step-2ck/practice/usmle-step-2ck-qbank?utm_source=openai
6. TrueLearn — Step 2 CK/Shelf “SmartBank”
TrueLearn offers a "SmartBank" tailored for Step 2 CK and shelf exams, distinguishing itself through a heavy focus on analytics and performance metrics. While other platforms provide analytics, TrueLearn makes national benchmarking a core feature, showing you exactly how your performance on specific topics stacks up against other students nationwide. This data-driven approach is designed to provide granular insights into your strengths and weaknesses.
With over 4,300 step 2 ck practice questions mapped to both the USMLE and shelf exam blueprints, the platform is comprehensive. It's often used as a supplementary resource to a primary QBank like UWorld, allowing students to reinforce concepts with a fresh set of questions while leveraging its powerful analytical tools. TrueLearn also periodically hosts free testing events, called Prepathon, which can be a valuable way to gauge your progress without a subscription.
Key Features and Usage
The platform is built to help you prepare methodically by identifying and targeting your weakest areas with precision. Subscription options are flexible, with various durations and a pass guarantee often included in longer-term plans, making it an appealing choice for students looking for a safety net. Many medical schools also purchase institutional access, so it’s worth checking if your program provides it for free.
- Pros: Excellent data-driven prep with detailed strength/weakness insights; real-time benchmarking against peers; flexible subscription plans and institutional options.
- Cons: Question stems and interface feel stylistically different from the actual NBME/UWorld format; often works best as a secondary, rather than primary, question bank.
Website: https://truelearn.com/usmle/usmle-step-2-ck-shelf/?utm_source=openai
7. BoardVitals — Step 2 CK Question Bank
BoardVitals offers a solid, budget-friendly option for students looking to supplement their primary question bank with additional Step 2 CK practice questions. It provides a substantial set of challenging items that cover the breadth of the NBME content outline. A key differentiator for BoardVitals is its accessibility, with a user-friendly mobile app that allows for effective studying on the go.
The platform is designed to be a practical tool, offering various modes like timed and tutor to fit different study phases. While its question bank is smaller than giants like UWorld or AMBOSS, it provides a different style of questions that can help you see concepts from new angles. The inclusion of an "Ask a Clinician" feature offers a unique support system for clarifying difficult concepts directly with an expert.
Key Features and Usage
BoardVitals provides adaptive learning technology to help focus your efforts on weaker areas, making study sessions more efficient. Performance metrics are available to track your progress over time. Access is subscription-based, with plans ranging from one month to two years, often featuring discounts and a pass guarantee on longer subscriptions. An optional full-length practice exam can also be added to simulate test day.
- Pros: Competitive pricing and frequent promotions make it a great value; Pass guarantee on select plans provides a safety net.
- Cons: Smaller item bank than top competitors; Explanations can vary in depth and may not be as comprehensive as premium banks.
Website: https://www.boardvitals.com/USMLE-step2-questions?utm_source=openai
8. Blueprint Prep — Step 2 CK & Shelf Exams Qbank
Blueprint Prep (formerly Med School Tutors) offers a comprehensive question bank designed to serve a dual purpose: preparing for individual clerkship shelf exams and the final Step 2 CK exam. Its standout feature is the sheer volume of high-quality questions mapped specifically to both shelf and Step 2 topics, making it a highly efficient resource for third-year medical students. The questions are crafted to reflect the NBME style, focusing on clinically relevant vignettes.
The platform emphasizes detailed, visually-rich explanations to help solidify concepts, a feature that is particularly helpful when learning new material during clerkships. Blueprint's analytics allow you to track performance across different subjects and systems, which is invaluable for identifying areas needing more attention before both a shelf exam and the cumulative Step 2 CK. This integrated approach makes it an excellent choice for students who prefer a single, consistent resource throughout their clinical year.
Key Features and Usage
With over 5,500 step 2 ck practice questions, Blueprint provides extensive coverage of all tested material. You can create custom tests filtered by clerkship, system, or subject, allowing for targeted study sessions. The interface is clean and user-friendly, simulating a realistic testing environment. Subscription plans are available in various lengths, and they offer a 7-day free trial, allowing you to sample the content and platform before committing.
- Pros: Large, up-to-date item pool with detailed images and visuals; excellent dual-purpose tool for clerkship shelves and Step 2 CK.
- Cons: Newer to the Qbank space than legacy competitors; fewer dedicated full-length practice exams compared to some other providers.
Website: https://blueprintprep.com/medical/med-school/qbanks/step-2-shelf-exams?utm_source=openai
9. Lecturio Medical — Premium (Videos + Step 2 Qbank)
Lecturio stands out by deeply integrating a vast library of video lectures with its Step 2 CK practice questions. This platform is ideal for students who learn best by first watching a concept explained visually and then immediately applying that knowledge to clinical vignettes. The platform uses an AI-powered algorithm to recommend relevant videos based on your performance on practice questions, creating a personalized and efficient study loop.
The primary strength of Lecturio is its all-in-one approach. Instead of juggling a separate video platform and a QBank, Lecturio combines them, allowing you to access a corresponding lecture directly from a question's explanation. This is particularly useful for building a foundational understanding of topics before diving into the nuances of exam-style questions. The platform also offers structured study plans and robust mobile apps for on-the-go learning.
Key Features and Usage
Lecturio's QBank is accompanied by an AI assistant and detailed analytics to help you pinpoint knowledge gaps. The platform offers subscription-based access, with different tiers providing varying levels of access to its video library and question bank. A 7-day free trial is available, allowing you to test the integrated learning environment. While some users find the questions less representative of the NBME style than UWorld or AMBOSS, it serves as an excellent tool for content review and foundational learning, especially during clerkships.
- Pros: Strong video-question integration for visual learners; helpful structured plans for building up to dedicated study; AI-powered recommendations.
- Cons: Question style feels less “NBME-like” to some users; pricing and exact question counts vary by plan and are less prominent on the site.
Website: https://www.lecturio.com/medical/usmle-step-2/?utm_source=openai
10. USMLE‑Rx — Qmax (Step 1 & Step 2) and Rx360+
USMLE-Rx offers a comprehensive learning ecosystem built around the framework of the popular First Aid series. While often associated with Step 1, its Qmax question bank provides a substantial number of Step 2 CK practice questions integrated within a broader suite of study tools called Rx360+. This platform is ideal for students who appreciate a structured, multimedia approach to learning and want to reinforce foundational knowledge alongside clinical application.
The primary advantage of USMLE-Rx is its integrated system. Questions in the Qmax bank are linked to relevant sections in First Aid, Rx Bricks (interactive learning modules), Express Videos, and Flash Facts (a spaced-repetition flashcard tool). This allows you to immediately dive deeper into a weak topic without leaving the platform, creating a seamless study workflow. The questions themselves tend to be more direct and less convoluted than UWorld's, which can be useful for building a solid knowledge base before tackling more complex vignettes.
Key Features and Usage
USMLE-Rx's Rx360+ package provides access to its full suite, including thousands of questions for both Step 1 and Step 2. Its analytics dashboard helps you monitor performance and identify areas needing improvement. The platform is available through subscription plans of varying lengths, often presenting a strong value proposition when compared to purchasing separate resources for QBanks, flashcards, and video lectures.
- Pros: Excellent value when bundled with the full Rx360+ suite; strong integration with First Aid and other learning tools; helpful for building foundational knowledge.
- Cons: Question style can feel shorter and less complex than the actual exam; some content may feel more geared toward Step 1 concepts.
Website: https://usmle-rx.com/pricing/?utm_source=openai
11. CanadaQBank — Step 2 CK Qbank
CanadaQBank is a well-known resource, particularly among international medical graduates, offering a budget-friendly alternative for Step 2 CK practice questions. Its primary appeal lies in its straightforward approach and flexible, lower-cost subscription models, making it an accessible option for students who need supplemental questions without the premium price tag of leading competitors. The platform provides a large volume of questions designed to cover the core clinical science topics tested on the exam.
While the question style and vignette complexity may not perfectly mirror the nuanced, multi-step reasoning required by UWorld or the NBME, CanadaQBank serves a valuable purpose. It is best used for reinforcing foundational knowledge and increasing your exposure to a wide variety of clinical scenarios. Students often use it early in their dedicated study period to build a solid base before moving on to more exam-like resources, or as a final pass to quickly review topics.
Key Features and Usage
The platform features a simple interface available on web and mobile, with frequent content updates to keep the material current. It offers a wide range of subscription lengths, from one month up to a full year, with simple and affordable extension options if you need more time. This flexibility is a key differentiator, allowing you to tailor access to your specific study timeline.
- Pros: Lower cost compared with many U.S. brands; flexible terms and straightforward extensions; large volume of questions for broad content review.
- Cons: Item style often differs from NBME/UWorld; explanations and embedded learning tools are less comprehensive than integrated platforms.
Website: https://www.canadaqbank.com/usmle-step2ck.php
12. MedStudy — Step 2 Qbank+ (Medical Student Subscription)
MedStudy presents its Step 2 Qbank+ as part of a comprehensive learning ecosystem rather than just a standalone question bank. It is designed for students who prefer a unified system that integrates long-term core content review with dedicated exam preparation. This approach makes it a valuable tool for building a strong foundational knowledge base throughout your clinical rotations, not just for last-minute cramming.
The platform bundles its approximately 1,500 Step 2 CK practice questions with digital core content and a "Personal Trainer" study planning tool. The questions are topic-organized, aligning with major clinical domains and emphasizing high-yield concepts. Explanations are clear and teaching-oriented, focusing on helping you truly understand the material rather than just memorizing facts for the test. This integration is MedStudy's key differentiator, offering a holistic study solution.
Key Features and Usage
The main draw is the all-in-one subscription model that supports continuous learning. While the question bank is smaller than competitors like UWorld or AMBOSS, its value is amplified when used in conjunction with MedStudy's other resources. The platform is best suited for students who want a single, structured system to guide them from clerkships through their dedicated study period, ensuring a consistent and well-rounded preparation strategy.
- Pros: Balanced learning system for long-term use; clear, teaching-oriented explanations; bundled digital core content and planning tools.
- Cons: Smaller question count than top stand-alone banks; full value is realized only if you use the entire subscription bundle.
Website: https://medstudy.com/products/usmle-step-2-questions?utm_source=openai
Top 12 Step 2 CK Qbank Comparison
| Product | Core features | Quality (★) | Unique selling point (✨) | Target audience (👥) | Price/value (💰) |
|---|---|---|---|---|---|
| Step 2 CK Tutoring — Ace Med Boards | 1:1 online tutoring, diagnostic, tailored plan, timed sims | ★★★★★ | ✨ Personalized clinical‑reasoning coaching & progress tracking | 👥 Busy clinical students needing targeted prep | 💰 Premium — high ROI for individualized help |
| UWorld — Step 2 CK QBank | NBME‑style vignettes, detailed explanations, self‑assessments | ★★★★★ | ✨ Most exam‑like Qbank & deep rationales | 👥 Students seeking high‑fidelity practice | 💰 High — widely recommended |
| NBME — Official CCSSA & Practice | Official self‑assessments, INSIGHTS reports, real exam interface | ★★★★★ | ✨ Gold standard for predicting readiness | 👥 Students near test day for benchmarking | 💰 Pay‑per‑form — moderate to high cost |
| AMBOSS — Qbank + Medical Library | 3,300+ Qs, side‑by‑side articles, algorithms, offline access | ★★★★☆ | ✨ Integrated reference overlays & fast lookup | 👥 Clerkship learners & quick‑lookup users | 💰 Mid — Qbank upgrade for full access |
| Kaplan — Qbank & Courses | 3,100+ Qs, live/OnDemand courses, custom quizzes | ★★★★ | ✨ Structured courses + test‑taking strategy | 👥 Learners wanting course structure & tutoring | 💰 Mid‑high — promo pricing varies |
| TrueLearn — SmartBank | 4,300+ shelf/Step 2 Qs, benchmarking, analytics | ★★★★ | ✨ Real‑time peer benchmarking & analytics | 👥 Data‑driven students & institutions | 💰 Mid — analytics focus |
| BoardVitals — Qbank | 1,400+ Qs, mobile app, adaptive learning, clinician support | ★★★☆ | ✨ Adaptive learning + “Ask a Clinician” | 👥 Cost‑conscious students needing extra practice | 💰 Budget — frequent promotions |
| Blueprint Prep — Qbank | 5,500+ Qs, NBME‑style items, strong visuals, analytics | ★★★★ | ✨ Large image‑rich pool for shelves + Step 2 | 👥 Students prepping shelves and Step 2 | 💰 Mid — new but comprehensive |
| Lecturio Medical — Premium | Video library + Qbank, AI tutor, structured plans | ★★★★ | ✨ Video‑question integration & AI assistant | 👥 Visual learners & those who want guided plans | 💰 Mid — plan‑dependent pricing |
| USMLE‑Rx — Qmax & Rx360+ | ~4.6k Qs, Rx Bricks, Flash Facts, spaced rep. | ★★★☆ | ✨ Bundled value tied to First Aid style content | 👥 Value seekers who use First Aid | 💰 Good value when bundled |
| CanadaQBank — Qbank | Flexible subscriptions, frequent updates, web/mobile | ★★★☆ | ✨ Low cost + flexible term options | 👥 International & budget students | 💰 Budget — flexible durations |
| MedStudy — Qbank+ | ~1,500 Qs, bundled core content, topic‑organized review | ★★★☆ | ✨ Balanced long‑term learning system | 👥 Students wanting structured long‑term review | 💰 Mid‑low — best with full subscription bundle |
Crafting Your Perfect Step 2 CK Study Plan
Navigating the vast landscape of Step 2 CK practice questions can feel overwhelming, but armed with the detailed insights from this guide, you are now equipped to make strategic choices that align with your unique learning needs. We have journeyed through the gold-standard resources like UWorld and AMBOSS, explored the essential benchmark tools from the NBME, and evaluated a variety of supplemental Qbanks from Kaplan to Lecturio. Each resource offers distinct advantages, whether it's UWorld's unparalleled explanations, AMBOSS's integrated library, or the NBME's predictive power.
The central theme is clear: success on Step 2 CK isn't about finding a single magic bullet. It’s about building a customized, multi-layered strategy that leverages the strengths of several key resources. Your goal is not merely to do questions, but to learn deeply from every single one, transforming each explanation into a durable piece of clinical knowledge.
Synthesizing Your Strategy: Key Takeaways
Remember that your selection and implementation of these tools should be deliberate. A disorganized approach of simply completing thousands of random questions is far less effective than a targeted, analytical one.
Here are the most critical takeaways to guide your final preparation:
- Build a Strong Foundation: For nearly every student, UWorld should serve as the cornerstone of your Step 2 CK preparation. Its comprehensive coverage and detailed answer explanations are unmatched for building the core clinical reasoning skills tested on the exam.
- Supplement Intelligently: Use a second resource like AMBOSS not just for more questions, but for its unique features. Its library is invaluable for quick lookups during clerkships and Qbank review, helping to solidify concepts on the fly.
- Benchmark with Precision: The NBME Comprehensive Clinical Science Self-Assessments (CCSSAs) are non-negotiable. Schedule these at key intervals, particularly in the final weeks of your dedicated study period, to gauge your readiness, simulate exam stamina, and identify remaining high-yield weak areas.
- Don't Overlook Free Resources: While premium Qbanks are essential, free resources like the official USMLE Free 120 questions are crucial for familiarizing yourself with the real exam interface and question style.
Putting It All Together: An Actionable Blueprint
Choosing your resources is the first step; creating a system is what drives results. Start by integrating Step 2 CK practice questions into your daily routine early in your third year. Use a Qbank like AMBOSS or TrueLearn for your Shelf exams to build a strong base.
As you enter your dedicated study period, transition to UWorld as your primary tool. Complete 80-120 questions daily in timed, random blocks to mimic test-day conditions. Your review process is paramount: spend at least as much time reviewing a block as you did completing it. Create flashcards or notes for incorrects and even for correct answers where your reasoning was shaky.
Finally, use your NBME scores to guide the final phase of your study. If your score plateaus or if you consistently struggle with certain question types or clinical domains, it’s a signal to adjust your strategy. This is the point where a more personalized approach can make all the difference. Remember, the ultimate goal is not just to answer questions correctly, but to understand the underlying medicine so profoundly that you can confidently tackle any clinical vignette the exam presents.
Feeling stuck or unsure how to turn your Qbank data into a higher score? The expert tutors at Ace Med Boards specialize in helping students analyze their performance on Step 2 CK practice questions and develop a targeted study plan to conquer the exam. Visit Ace Med Boards to learn how personalized guidance can help you achieve your goal score.
