README

• Build assembly sbt clean assembly
• Run by java -jar ./target/scala-2.11/sudoku-assembly-1.0.0.jar ./src/test/resources/p096_sudoku.txt
• Sudokus can be generated e.g. with https://qqwing.com/download.html java -jar qqwing-1.3.4.jar --generate 1000 --difficulty expert --compact > sudoku.txt
• Sudokus can be fast solved by QQWing cat sudoku.txt | java -jar qqwing-1.3.4.jar --solve --compact > sudoku_sol.txt
• Note in my tests QQWing unfortunately produces results that are not ordered accordingly the input puzzles but randomly (it's a multithreading application)

Scala Native is again supported :-)

• Install requirements for Scala Native first: https://scala-native.org/en/stable/user/setup.html#installing-clang-and-runtime-dependencies
• Build native by sbt -DNATIVE clean nativeLink (will last some time)
• Run native by ./target/scala-3.4.2/sudoku-out ./src/test/resources/p096_sudoku.txt

Build Scala Binary with Sbt + GraalVm

sbt assembly
cp ./target/scala-3.4.0/sudoku-assembly-1.0.0.jar ./
docker run -it --rm --mount type=bind,source="$(pwd)",target=/app ghcr.io/graalvm/native-image-community:21 /app/sudoku -jar /app/sudoku-assembly-1.0.0.jar