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Junction Nine
A 3x3 puzzle with a solver-verified shortest solution
Spin sections of a 3x3 board until every colored path connects. Every puzzle has a solver-verified shortest solution, and all 185,794,560 board states are solvable in 9 spins or fewer. 30 puzzles free, no ads, with 30 more in a one-time pack. Available on iOS and Android.
Hi Product Hunt -
Junction Nine is the second game I've built under Bricks & Chips, and this one grew out of an unusual place: a lecture at my daughter's math camp about the mathematics of a 3x3 rotation puzzle.
The rules are simple. Spin rectangular sections of a 3x3 board 180 degrees until all the colored paths connect.
Underneath that simple mechanic is a state space of 185,794,560 possible arrangements and orientations. Every state is solvable in nine spins or fewer, and every puzzle I ship is checked by a solver so its shortest solution is known.
That means there are really two challenges:
Solve the puzzle.
Find the best possible solution.
Like ZenCubed, Junction Nine started as a family project, with my kids as some of the earliest and most direct playtesters.
I also wanted to make a game that respects the players' attention. You can think about it, put it down, and come back to it. There are no timers, streaks, ads, or subscriptions. Origin includes 30 puzzles free, and Transfer adds another 30 for a one-time $2.99 purchase.
I'd especially love feedback on the balance between giving players enough visual information to reason through a puzzle without making the optimal solution too obvious.
Thanks for checking it out!
Connie
Bricks & Chips
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About Junction Nine on Product Hunt
“A 3x3 puzzle with a solver-verified shortest solution”
Junction Nine was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #95 on the daily leaderboard. Spin sections of a 3x3 board until every colored path connects. Every puzzle has a solver-verified shortest solution, and all 185,794,560 board states are solvable in 9 spins or fewer. 30 puzzles free, no ads, with 30 more in a one-time pack. Available on iOS and Android.
Junction Nine was featured in Android (57.5k followers), iOS (110.7k followers), Puzzle Games (4.3k followers) and Games (98.8k followers) on Product Hunt. Together, these topics include over 116k products, making this a competitive space to launch in.
Who hunted Junction Nine?
Junction Nine was hunted by Connie Chen. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Connie Chen