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Posts tagged: Sudoku

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React Native Game Architecture

How to model board completion events for game feedback in React Native

9 min read

Written by: Jonathan Reis on

A practical event model for distinguishing a completed row, column, or block from the ninth correct placement of one digit, then routing both through sound and haptic feedback.

React NativeTypeScriptMobile GamesGame AudioSudoku
React Native

Your React Native confetti renders behind the cards: sibling order, zIndex, and elevation

8 min read

Written by: Jonathan Reis on

A win-screen celebration overlay fell behind the result cards and dropped too fast. The cause was React Native's sibling paint order, not a missing z-index. Here is why zIndex alone is not enough on Android and how we fixed both bugs.

React NativeAndroidReanimatedMobile GamesSudoku
Game Design

When helpful validation becomes a cheat: Sudoku notes that leaked the answer

7 min read

Written by: Jonathan Reis on

Our Sudoku blocked pencil marks that conflicted with the row, column, or box. It felt like a safety check. It was actually a free solver that told players which numbers were still possible. Here is the fix and the principle behind it.

Game DesignReact NativeAnti-CheatMobile GamesSudoku