Sign in

Daniel Martínez PhD

@dmartinezphd.bsky.social
595 followers 1.5K following 397 posts

Lapsed professor turned indie game developer. Currently obsessed with pattern matching games. Bregando entre culturas. My first tabletop game: www.playradx.io Available at Sherman’s Books Maine Pa’lante 🇵🇷

PostsRepliesMedia
Daniel Martínez PhD @dmartinezphd.bsky.social · 05/10/2026
Almost ready for the next game, this time a speller. I'm assuming there are some sickos out there (like me) who like to spell things. What are the biggest words you can spell with this grid?
Letter grid for Lexonimo (TM) game
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 03/10/2026
Nice find! Mi mami just sent me this book, I’m obsessed with español caribeño and his Dictionary of Puerto Rican Colloquialisms is fantastic. Phrases I grew up hearing and am still hearing now with a better understanding of.
Diccionario de voces coloquiales de Puerto Rico
012
Daniel Martínez PhD @dmartinezphd.bsky.social · 01/10/2026
Reaches into desk.
Fountain pens
040
Daniel Martínez PhD @dmartinezphd.bsky.social · 24/09/2026
shaking for more coffee vs shaking bc too much coffee. Either way, socorro!
Empty moka pot
020
Daniel Martínez PhD @dmartinezphd.bsky.social · 22/09/2026
My prototype boxes just came in for my next card game! I really like this color scheme. If you like word builders like scrabble, banangrams, boggle, etc. Now time to build inventory and hope to have this ready to go by November.
Prototype game boxes
110
Daniel Martínez PhD @dmartinezphd.bsky.social · 22/09/2026
I’ve got two new games nearly ready that would look great on this playing card display.
Display of various card games at a bookstore.
000
Daniel Martínez PhD @dmartinezphd.bsky.social · 01/09/2026
Getting a couple of new tabletop games ready for production and sale. I’m noticing that dark print fades fast and black is really hard to get right as a color. I’m sure this is well understood but new to me! Anyway, if you like to spell or pattern match, I’ve got some games you might want to try!
Photo of game development attempts. Thought Protocol LLC.
120
Daniel Martínez PhD @dmartinezphd.bsky.social · 30/08/2026
Cool obituary. The entire time my brain read this in an Optimus Prime voice.
Peter Cullen obituary, voice of Optimus Prime.
020
Daniel Martínez PhD @dmartinezphd.bsky.social · 26/06/2026
Another #game sighting. Falmouth. It’s as hard to pronounce as it is to play! #tabletop #math #computation
Radxio the codable math game on a shelf
040
Daniel Martínez PhD @dmartinezphd.bsky.social · 20/06/2026
Un trozo de arcoíris
Rainbow in the rain
000
Daniel Martínez PhD @dmartinezphd.bsky.social · 15/06/2026
Another game sighting, this time 3 copies at the Topsham store! Much love to the booksellers who placed them eye-level this time. Great for getting them noticed and for saving my knees. You don't need a big brain to play, just a fast one. #BoardGame #MathGame #STEM #TableTop #MathSky #EduSky
Shelf with various tabletop games for saleMan pointing to s game on the store gaming shelf.
040
Daniel Martínez PhD @dmartinezphd.bsky.social · 11/06/2026
My game in its natural habitat! Shout out to Sherman's in Freeport for not calling the cops on me. I've been lurking for about a week waiting for them to be stocked! Proud of this analog method for learning a digital concept only available at a physical store. For now. #cardgames #boardgames #math
selfie in front of my game, "radx .io the codable math game" at Sherman'sthe game in it's natural habitat.
060
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
15 decimal = 00001111 binary Last one! Now you know how to do decimal to binary conversion for the first 16 decimal numbers 0 - 15. This game idea has been in my head for over a decade and I'm excited that it's finally out in the world! #math #numbers #binary #MathSky #EduSky #Coding #BoardGames
15 decimal = 00001111 binary
020
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
14 decimal = 00001110 binary Oh, you may have noticed that the red numbers switched to letters! That's the hexadecimal system, which is base 16. Thinking of The Martian right now, "hexadecimals. hexadecimals." Did I mention that decimal is base 10 and binary is base 2? That's why I chose radxio.
14 decimal = 00001110 binary
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
13 decimal = 00001101 The US Trademark office rejected my application right before I was going to go all in on a big printing with the dicipherio name. I switched to radx .io (radxio works too), because radix means number base. The io is supposed to be like 1 and 0 or i/o input/output.
13 decimal = 00001101 binary
110
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
12 decimal = 00001100 binary. I'm really drying up on material. How about this, I tried to trademark dicipher .io (I'm using a space so it doesn't point to a URL I don't own) for the game because my original design was with dice. I made a card version because costs are easier to control at first.
12 decimal = 00001100 binary
110
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
11 decimal = 00001011 binary I'm running out of material here. Oh, another fun fact: Leibniz is less widely known for his invention of binary arithmetic, the basis for today's digital computing. Note: he didn't invent the concept of binary, just the arithmetic we use today. (See I Ching by Fu Xi)
11 decimal = 00001011 binary
110
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
10 decimal = 00001010 binary. Cool pattern. Just like in octal you wouldn't say one thousand ten for 1010, it would be one-zero-one-zero. It reminds me of the joke, "There are 10 types of people in the world, those who understand binary and those who don't" 🥁
10 decimal = 00001010 binary
110
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
9 decimal = 00001001 binary. You probably also noticed in the previous card that the yellow numbers are out of sequence with the blue and red numbers. The yellow numbers are octal, so 0 - 7 (8 numbers) and then resets to 10. For 9 decimal, you have 11 octal. You don't say "eleven", but "one-one".
9 decimal = 00001001 binary
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
8 decimal = 00001000 binary Notice that 2, 4, 8, 16, 32, 64, and 128 are "gimmies" - if you draw that card, it's a fast solve. Also notice that 127, 63, 31, 15, 7, 3, and of course 1 are easy to solve because all of those cards are turned on just right of the gimmie cards.
8 decimal = 00001000 binary
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
7 decimal = 0000111 binary Notice that odd numbers always have the 0th bit on and even numbers always have the 0th bit off.
7 decimal = 0000111 binary
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
6 decimal = 00000110. Again, you could just simplify to 4 bits and say 0110 until you started using the 4th bit (the 5th card, 16). Fun fact: 1 bit is a bit (duh), 8 bits are a byte, and 4 bits are a nibble.
6 decimal = 00000110
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
5 decimal = 00000101 binary. Since we are starting at the smallest numbers, we never use bits 4, 5, 6, and 7 but you would if you are brave enough to math in your head. So, you can also say 5 decimal = 0101 binary or just 101, but you sound smarter if you go all 8 bits.
5 decimal = 00000101
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
4 decimal = 00000100 binary. Notice I have other numbers and characters on the draw card. I thought it was boring to just have a decimal number, so I added hexadecimal, octal, and the ASCII character set for kicks. Totally just eye candy, because why not make the game even more esoteric haha.
4 decimal = 00000100
200
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
With that same algorithm, 3 is equal to off-off-off-off-off-off-on-on or 00000011 in #binary (Because 2+1 = 3 in the cipher)
Decimal 3 = 00000011 Binary
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
Draw the decimal number 2, and you get 0x128 + 0x64 + 0x32 + 0x16 + 0x8 + 0x4 + 1x2 + 0x1 = 2. So, 2 in decimal is equal to 00000010 in binary. (The 0th bit gets turned back off and the 1st bit gets turned on.)
Binary to decimal sequence 2 = 00000010
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
If you drew a decimal "1", you would turn on the 0th bit all the way to the right. That's basically saying 0x128 + 0x64 + 0x32 + 0x16 + 0x8 + 0x4 + 0x2 + 1x1 = 1. (So off is equal to a 0 multiplier to leave the bit off while on is equal to a 1 multiplier to turn the bit on.) So, 1 is 00000001.
Using cards in a binary sequence to do decimal to binary conversion.
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
So if you drew a decimal "0" from the deck, all cards would stay in off position and have a binary sequence of 00000000. Nothing earth shattering here. (It starts to hurt the brain the bigger the number.)
Using cards in a binary sequence to do decimal to binary conversion.
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
So, you can use these cipher cards to do different possible combinations of additions. 1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 = 255 but only if the bit is turned on. In this picture they are all in off position.
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
The goal is to convert a decimal number from 0 - 255 using a bit sequence and a cipher that helps convert decimal to binary. The faster you are at basic addition, the more likely you'll like this game. An 8-bit sequence, also called a "byte" is just powers of 2 from 1 (2^0) to 128 (2^7).
Card layout to teach decimal to binary conversion
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/06/2026
How to do #decimal to #binary conversion as a game. Great for teaching about bits and bytes in computing and also number base conversion. #MathSky #EduSky #BoardGames --> A thread.
Card layout to teach decimal to binary conversion
130
Daniel Martínez PhD @dmartinezphd.bsky.social · 07/06/2026
Fulfilling the order for Sherman's Maine Coast Book Shops! I can get used to this. Pa'lante! #MathSky #EduSky #Games #Binary #Math
Assembling copies of my game for a wholesale order.
050
Daniel Martínez PhD @dmartinezphd.bsky.social · 05/06/2026
It's been a while since I posted anything on this app but I'm happy to announce that I got my first tabletop game purchased by a local bookshop in Maine! It's on brand for me, it's a how fast can you do decimal-to-binary conversion against opponents. It's easier than it sounds, just look! #tabletop
180
Daniel Martínez PhD @dmartinezphd.bsky.social · 16/10/2025
A simple meal never tasted so good.
Rice and black beans
140
Daniel Martínez PhD @dmartinezphd.bsky.social · 28/09/2025
I want my mvp to sleep and so does he.
Sleep
100
Daniel Martínez PhD @dmartinezphd.bsky.social · 27/09/2025
Endorse
Slide rule
110
Daniel Martínez PhD @dmartinezphd.bsky.social · 21/09/2025
Lunch with a view.
Picnic table look at the ocean
030
Daniel Martínez PhD @dmartinezphd.bsky.social · 18/09/2025
Found this note to redo something. It made me chuckle because I had to do redo.
Redo
010
Daniel Martínez PhD @dmartinezphd.bsky.social · 12/09/2025
I saw Atari-style mosaics when I visited Bilbao. After being told about them, I saw them everywhere. Must confess, the Marios are a level up.
Atari street mosaic
010
Daniel Martínez PhD @dmartinezphd.bsky.social · 09/09/2025
Noticed some papers inside my old calculator case and found this gem. Now I just google this and I think I’ve gotten dumber haha.
Unit conversion sheet next to calculator.
010
Daniel Martínez PhD @dmartinezphd.bsky.social · 08/09/2025
Beer almost gone.
110
Daniel Martínez PhD @dmartinezphd.bsky.social · 05/09/2025
In happier news, here comes the magic elixir
Coffee moka pot
020
Daniel Martínez PhD @dmartinezphd.bsky.social · 28/08/2025
Forgot to attach a photo of the ink drop whoops. Here it is. #fountainpens
Lamy fountain pens
270
Daniel Martínez PhD @dmartinezphd.bsky.social · 27/08/2025
Oh and I have an undercover chocolate quinoa addiction. I’ve had the dark version on planes and wasn’t impressed but the milk chocolate is very good.
Undercover chocolate
110
Daniel Martínez PhD @dmartinezphd.bsky.social · 25/08/2025
Monday self motivation. Game box. Going for a classic dare I say nostalgic look. My only skills are PowerPoint skills but it’ll do for now. #tabletop #boardgames #games
Playradxio game box
040
Daniel Martínez PhD @dmartinezphd.bsky.social · 20/08/2025
Appropriately named Lamy Joy 1.1 mm nib calligraphy pen. So fun to right with. #fountainpens
Fountain pen
2120
Daniel Martínez PhD @dmartinezphd.bsky.social · 20/08/2025
Just got some pretty far developed prototypes for my number base code game. I’m messing with a dice vs tile vs card variant. I use SmartPress for the printing but am always looking for printer recommendations.
radxio code cards
250
Daniel Martínez PhD @dmartinezphd.bsky.social · 20/08/2025
That’s hilarious. I used to joke that it should now go “publish and perish anyway.” This card from the game sums it up!
Publish or perish card
120
Daniel Martínez PhD @dmartinezphd.bsky.social · 19/08/2025
When I was learning from this, Stewart was still riding solo
Calc textbook
010
Daniel Martínez PhD @dmartinezphd.bsky.social · 19/08/2025
One year post adoption photo #puppychulo
Dog
030