The Vietnamese specialised-informatics (chuyên Tin) pipeline is the principal route into the country's competitiveprogramming track and is gated by a grade-9-end entrance examination into approximately seventy MOET-designated chuyên schools. Students outside this pipeline — the great majority of Vietnamese upper-secondary students attending general public high schools and private schools, here collectively termed non-chuyên — have no institutional analogue for sustained algorithmic-pedagogy access. The MOET general-curriculum informatics syllabus 1 caps algorithmic depth well below competitive-programming entry; the public-school textbook line by Hồ Sĩ Đàm and colleagues 2 targets digital-literacy and Python or Pascal fundamentals rather than the comparatordesign, dynamic-programming-on-trees, and segment-tree fluency a competitive contestant needs. Yet the national HSG Tin Học regulation under MOET Circulars 56/2011 3 and 22/2019 4 does not formally restrict participation to chuyên enrolment; the route is administratively open through the provincial teamformation channel. The discrepancy — formally open route, defacto closed institutional support — defines the equity question this paper addresses. The paper synthesises four named feasible pathways (P1 self-driven online, anchored on the USACO Guide 5, the CSES Problem Set 6, and the Laaksonen handbook 7; P2 community-club inside a non-chuyên school, anchored on Parsons-style scaffolded practice 8 and self-regulation theory 9; P3 hybrid online plus offline summer or weekend programmes, anchored on the bootcamp pedagogy literature 10; P4 cross-school mentorship with chuyên-school alumni, anchored on equity-in-CS-education work 11, 12, 13) and specifies for each pathway its stages, milestones, time-to-competitiveness floor, resource cost, mentor-availability requirement, motivationsustainability profile, and characteristic failure modes. Each pathway's entry profile is mapped back to the seven readiness criteria from the sibling C3.1 entry-criteria framework 14. Evidence anchors for feasibility draw on documented selflearning trajectories on Codeforces and CSES 15, 16, 17, the open-educational-resource policy literature 18, and the deliberate-practice tradition 19. Expected reach is estimated for each pathway in the form of the fraction of non-chuyên students who can be expected to progress to provincial-level HSG Tin Học, with the floor being self-driven pathway P1 (reach narrow but non-zero) and the ceiling being a combined P1+P3+P4 stack (reach materially higher under realistic mentor availability). The discussion maps the elix-researches CPP Pathway Vol 0–5 textbook series onto pathway P1 as its principal scaffolding artefact, characterises the equity gains and trade-offs of each pathway, identifies what non-chuyên pathways cannot easily replace (sustained peer-cohort intensity, contest-simulation
That Le (Tue,) studied this question.