Bounded-Error Log

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Posts

Gold-medaling the 2025 IMO was easier than average

Vim Digraphs: The Unnecessarily Detailed Guide

Right Back Here

How is viridis defined?

D3 the Hard FP Way

Despite Everything

Yet Another Diceware-Style Word List

Designing a Programming Language to Speedrun Advent of Code

2023 MIT Mystery Hunt

One Step Forward to Tomorrow

Introduction to Code Golf and Golflangs

Flexbox Fun Facts

🅿️🅿️🅿️ordle

Interpreting Some Toy Neural Networks

TI-1337 Silver Edition

2022 MIT Mystery Hunt

...And They Don't Stop Coming

Just Enough Elliptic Curves to Be Dangerous

One Weird Anki Trick

What Color Should My Discord Roles/Reactions Be?

SQL Selects the Hard FP Way

Blogging Advice For People Exactly Like Me

2021 MIT Mystery Hunt

…And I Feel Fine

Advent of Code: How to Leaderboard

C++ Rvalue References: The Unnecessarily Detailed Guide

2020 MIT Mystery Hunt

Rocket Equation

baby_boi (A Textbook CTF ROP Tutorial)

Introduction to Puzzlehunts

Cook Like You're Not on MasterChef

Go to Class (Most of the Time)

Multiplication by Juxtaposition

Writing for the Mundane

How to Choose an MIT Username

Olympiads: The Infinitely Overdue Retrospective

2019 MIT Mystery Hunt

The Prose and the Passion

React and Redux the Hard FP Way

Proprietary Format

On #DeleteFacebook

2018 MIT Mystery Hunt

Thoroughly Stripped

Me and Facebook

Taking a Step Back

I guess January is puzzles month

The More Things Change

It's Complicated

Time, Money, and All That Good Stuff: Part 1 of ∞

Musings on Time Pressure

On Islam, Headlines, and Definitions

[insert name here]

Puzzle 49 / Triple Back

November 2015 Puzzles Hints

Three for the Price of One (Meta)

When Is My Birthday Again?

A Signature Puzzle

Jam-Packed Fun and Games

Orthogonal Planes

Puzzle 48 / Double Back

Glowstick Fragments

[CIMC 2015 Part 3] Monsters and Pandas and Tigers, Oh My!

[CIMC 2015 Part 2] Journey of the Blue-White Slippers

[CIMC 2015 Part 1] Rainy Days in July (and Other Months)

C-c-c-Combo Breaker!

[warp]clicker.html

Old Tests (and a Mysterious New Student)

More Fiction (Part 2.5)

Throwback Thursday Puzzles!

Translation Party

MIT Course Number Mnemonics

Time Management

Bilingualism II

More Fiction (Part 2)

Cognitive Asymptotics

More Fiction (Part 1)

Quixotic Reimagining of Standardized Tests (Part 2)

Coming Up with Blog Post Titles Is Hard

Quixotic Reimagining of Standardized Tests (Part 1)

8 Songs for 18 Years

Two Points on Photography

Spontaneous Thoughts on Teaching

Ninety-nine (card game)

Adventures in Unicode Forensics

Three Standard Deviations

Puzzle 47 / Fillomino [LITS + Walls]

Puzzle 46 / Fillomino [LITS + Extra Region + Walls + Anti-Walls + Inequality + Tapa + Masyu]

Thoughts at Midnight

2015 MIT Mystery Hunt

College Questions (unprotected ver.)

HOJ 226: CP (中)

Commemorating Obvious Milestones Involving Chronological Sustenance

Extreme Value Theorem

[IOI 2014 Outtakes]

[IOI 2014 Part 4] Shades of Xanthous

[IOI 2014 Part 3] Games of Luck and Strategy and Really Weird Noises

[IOI 2014 Part 2] One Line to Solve Them All

[IOI 2014 Part 1] Everything is More Exciting with Lightsabers

[IOI 2014 Part 0] Waiting

[IOI 2014 Part −1] Prelude.hs

Rise from the Ashes

Puzzle 45 / Fillomino [No-Path]

Adventures in Cabal Installations

Re-Re-Revisiting the SAT

The Sands of Time

Okay, I got a 2400. Happy now?

Puzzle 44 / ???

Puzzle 43 / Fillomino [Nonrectangular + Walls]

Puzzle 42 / Fillomino [Greater-Than]

Rankk Solving Statistics

Haskell and Primes

MUMS Puzzle Hunt 2013

Puzzle 41 / Slitherlink [Clones]

Example "BetaWorldProblems"

Puzzle 40 / Fillomino [Samurai]

Google Reader Powering Down

Puzzle 39 / Contact + Slitherlink [Antisymmetric]

Adventures in Scala Pseudo-Abuse

Puzzle 38 / Contact

Pronunciation Stereotypes and the Uncrackable IPA Code

Puzzle 37 / Slitherlink + Masyu

Puzzle 36 / Fillomino [LITS]

Hunter on Vacation

Puzzle 35 / Double Back

Puzzle 34 / Snail's Nest

Ridiculously Long-Winded Programming Babble

Gridderface 0.5

Puzzle 33 / Ice Barns

Puzzle 32 / Slitherlink [Crosslink + Liar]

Puzzle 31 / Fillomino [Sashigane]

Puzzle 30 / Fillomino [Skyscrapers]

Puzzle 29 / Corral [Antisymmetric Multiplicative]

Adventures in Meta-Debugging

Puzzle 28 / Fillomino [Nonrectangular]

Puzzle 27 / LITS

Matrix Intuition

Puzzle 26 / Double Back

Puzzle 25 / Double Back

Puzzle 24 / Double Back

Puzzle 23 / Corral [Multiplicative]

Puzzle 22 / Fillomino [Sashigane]

[IMO 2012 Part 6] Mostly Not About Excursions

Puzzle 21 / LITS

Puzzle 20 / Sashigane

[IMO 2012 Part 5] Unlucky Fours

Puzzle 19 / Yajilin

[IMO 2012 Part 4] The Inequality of Broken Dreams

Puzzle 18 / Smullyanic Dynasty

Puzzle 17 / Corral

[IMO 2012 Part 3] Luggage Carriers and Language Barriers

[IMO 2012 Part 2] The Hotel of Deception

[IMO 2012 Part 1] Dangerous Metal Chopsticks

Glowstick Memories

Impact Minus Two Weeks

Puzzle 16 / Slitherlink [Domino]

Twitter Bandwagon

Scheduled Blogging

Puzzle 15 / Sudoku / Happy Birthday!

Puzzle 14 / Slitherlink

Puzzle 13 / Akari

Puzzle 12 / Sashigane

Puzzle 11 / Smullyanic Dynasty

Puzzle 10 / Nurikabe 3

Puzzle 9 / Yajilin

Puzzle 8 / Fillomino

Puzzle 7 / Slitherlink [All Twos]

Puzzle 6 / Fillomino

Technological Fails Continue

Puzzle 5 (Liar Slitherlink)

Adventures in Crappy Markup

Puzzle 4 / Nurikabe (+Lists of Obscure Stuff)

Puzzle 3 / Nurikabe

Autological Procrastination

Freedom Writers SEO (or lack thereof)

Puzzle 2 / Slitherlink

Freedom Writers

Puzzle 1 (Wild Slitherlink Appeared!)

Technological Fails

More Random Blathering

New Goal: 10 Keepers

Back from Math-Camp Post...

Eternity Bus Ride

A (****) of a Lot of (****)

The Return of the Omnipotent Biker

Spanish, Music, and Doing the Wrong Thing

Sicknesses and Sundays

Pearl Milk Tea Again

Virtues, Complaints, and Trash

Human Dependencies and More Trash

Peanut Butter Viscosity

Your Typical Friday

diagrams Reference

Iverson Bracket

Java Clipboards and Data Transfer

Operation Exchange

Poker Formatter

Problem Reference

Rudin Crib Notes