Numerical Tic Tac Toe 4+
Evens vs odds for 15-in-a-row.
Oak Snow Consulting LLC
Designed for iPad
-
- Free
Screenshots
Description
Numerical tic-tac-toe is a variant of tic-tac-toe that replaces the traditional Xs and Os with odd and even numbers. Players alternate placing numbers, aiming to form a line that adds up to 15.
The game is played on a normal nine square tic-tac-toe board. The odd player begins with the numbers 1, 3, 5, 7, and 9. The even player begins with the numbers 2, 4, 6, and 8. Odd always goes first. The two sides alternate placing numbers on the board in empty squares.
Numbers cannot be repeated. So, there will only ever be a single instance of each number on the board. The first player to put a number down that achieves a sum of 15 composed of three numbers in a row, column, or diagonal wins the game. Note, that two numbers adding to 15 is not sufficient. So, a 6 next to a 9 is not a win.
*Features*
- Play against an AI opponent
- Play against a friend
- Three levels of difficulty
- Customizable colors
*History*
Numerical tic-tac-toe was invented in the late 1950s by American mathematician Ronald Graham. A similar game was contemporaneously invented by P.H. Nygaard.
In 1990, George Markowsy wrote a computer program that solved numerical tic-tac-toe. He proved that 1 in the top middle slot is a winning first move for odd. In other words, in perfect play, odd wins the game. Markowsky published his findings in The Journal of Recreational Mathematics.
What’s New
Version 1.0.1
- Bug fixes
App Privacy
The developer, Oak Snow Consulting LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
- Other Data
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
-
Oak Snow Consulting LLC has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
- DUNS Number
- 080471848
- Address
- 69 Van Patten Pkwy Burlington Vermont 05408 United States
- Phone Number
- +1 8024894941
- inquiries@oaksnow.com
- Size
- 9.3 MB
- Category
- Games
- Compatibility
-
- iPhone
- Requires iOS 16.0 or later.
- iPad
- Requires iPadOS 16.0 or later.
- Mac
- Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
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English
- Age Rating
- 4+
- Copyright
- © 2022 Oak Snow Consulting LLC
- Price
- Free