The depth of Hanabi

This post is a short chrono-logue about my time with the card game Hanabi, which I play with the H-group. Thus, it’s also implicitly an advertisement for why I enjoy the game Hanabi so much. I think the progression is a bit interesting because it can be divided into almost discrete “stages”, with each stage… Continue reading The depth of Hanabi

Slice of life of the OTIS GM

Here’s a snapshot of what running OTIS looks like these days. Starts from last Sunday afternoon until Monday lunch. Timestamps indicate when the action was completed (rather than started). Sunday 13:04: Process a late financial aid request from someone who forgot to request it earlier. Sunday 13:14: Edit OTIS website to clarify that if you… Continue reading Slice of life of the OTIS GM

Twitch & USEMO Announcement

Twitch Solves ISL Season 3 I'll be resuming streaming live solves of math problems this fall! As usual, the stream runs at 5pm Pacific / 8pm Eastern on Fridays, for 2-4 hours per stream usually. The dates of the first ten streams are currently scheduled (tentatively; these move around a lot) as: Friday September 15… Continue reading Twitch & USEMO Announcement

New handout: Intro to Proofs for the Morbidly Curious

Downloadable at https://web.evanchen.cc/handouts/NaturalProof/NaturalProof.pdf. I don't know why I thought to write this, but it's been bugging me for a year or two now that I've never seen the answer to "what is a proof" written out quite this way. So here you go. It's a bit weird for me to be writing an article that… Continue reading New handout: Intro to Proofs for the Morbidly Curious

Signal boost for Carina Initiatives full-time position

The Carina Initiatives (https://carina.fund) is a friend of the math education community which has supported organizations like Art of Problem Solving, BEAM, Athemath, and others. They're starting a math talent search organization in the United States and are looking to hire a full-time leader (salary $200K-$250K). Passing this along in case anyone in this space… Continue reading Signal boost for Carina Initiatives full-time position

But look at me now

Last weekend in StarCraft, the world championship at IEM Katowice 2023 saw a so-good-it-must-be-scripted Cinderella story, where Oliveira won the world championship in a totally unexpected way. It was a whole roller-coaster of upset after upset from Oliveira, and up until the grand finals we were all still asking, "this can't be, is this really… Continue reading But look at me now

Japanese EGMO is published!

I'm happy to thank 日本評論社 and their team (Fuma Hirayama, Yuki Kumagae, Taiyo Kodama, Ayato Shukuta, among others) for making the Japanese translation a reality. As well as tripling the length of the errata PDF :) This marks the second translation of the EGMO textbook (a Chinese translation was published a while ago as well… Continue reading Japanese EGMO is published!

Two updates on the EGMO textbook

Couple Thanksgiving presents for y'all: Errata List now on GitHub The list of errata is now version controlled on GitHub: https://github.com/vEnhance/egmo-book-errata.So now you can actually see a changelog of the ocean of typos as they come in.Shout-out to the crew working on the Japanese translation of the book for finding way more errors than I… Continue reading Two updates on the EGMO textbook