N-Queens Problem with additional constraint

Problem Definition

Place N queens on an NxN chess board so that none of them attack each other (the classic n-queens problem). Additionally, make sure that no three queens are in a straight line at ANY angle, so queens on A1, C2 and E3, despite not attacking each other, form a straight line at some angle.

Building project

./gradlew build

Running

java -jar build/libs/nqueens-0.0.1-SNAPSHOT.jar --number-of-queens 8

Log file

If something goes wrong while running the program log file nqueens.log can be inspected for details.