Hey, I'm Sidhak 👋

I'm Sidhak Khanuja — a 16-year-old cuber, coder, and the person behind Cubra. I've been speedcubing for over five years now, and I genuinely can't imagine life without it. This is the story of how a random Rubik's Cube changed everything for me.

It was the middle of 2020. COVID had locked everything down, school was on Zoom, and I was bored out of my mind. One day, my dad came home with a Rubik's Cube — I think he just wanted to give me something to do. I didn't think much of it at first.

But then I solved it. And I wanted to solve it again. Faster.

I was 10 years old, sitting at the kitchen counter with algorithm sheets printed out, a timer running on my phone, and a 2×2 and 3×3 in front of me. I'd do solve after solve, trying to shave off seconds. My family probably thought it was a phase. It wasn't.

After two years of practicing on my own, I signed up for my first WCA competition — SacCubing XI 2022 in Sacramento. I was 12, nervous, and had no idea what to expect. Walking into a room full of cubers, stackmats, and judges was surreal. These were people who cared about the same thing I did.

I posted an 18.37s in my first-ever official solve and ended the day with a 17.09s best. Not world-class, but for me it was everything. I walked out knowing I wanted to keep competing — and keep getting faster.

From there, I went all in. I drilled CFOP — learning all 57 OLL cases and 21 PLL algorithms. I practiced F2L until my fingers could do it without thinking. I expanded to other events: 2×2, 4×4, Pyraminx, Skewb, Clock. Every event taught me something different about spatial thinking and speed.

I competed whenever I could — Bay Area Speedcubin', Berkeley, Benicia, West Coast Cubing Tour. Every competition was a chance to push my times lower and meet incredible cubers. The community became a huge part of why I loved this so much.

Over 13 competitions and 197 official solves later, I brought my 3×3 single down from 18.37s to 11.07s — that's where I am right now. Still going.

View my full WCA profile →

For years, my cubing setup was scattered — a timer app here, algorithm PDFs there, solve logs in a spreadsheet, flashcards on another site. I kept thinking: why isn't there one app that does all of this?

So I decided to build it myself. Cubra is the cubing app I wished I had when I was starting out. It has everything — a precision timer with scramble generation for every WCA event, a CFOP phase trainer, algorithm flashcards with spaced repetition, deep analytics, smart cube integration, and a rank system that makes practicing feel like a game.

I designed every feature because I needed it myself. The algorithm trainer exists because I struggled to memorize 78 cases. The phase timer exists because I couldn't figure out where I was losing time. The stats dashboard exists because I wanted to see my progress, not just feel it.

My goal is simple: make it easier and more fun to learn cubing, whether you're solving your first cube or chasing sub-10. If Cubra helps even one person fall in love with cubing the way I did, it was worth every line of code.