Abstract: For chess players to sharpen their tactical skills effectively, they train on chess puzzles with a fitting difficulty level. This paper presents an approach to estimate the difficulty level ...

NYT Connections for January 8 offers a balanced challenge with smart misdirection and satisfying reveals. This guide explains each category and why the puzzle works ...

Looking for clues for today's Connections answers? The Connections answers on January 8 for puzzle #942 are much harder than ...

Today's Wordle answer should be easy to solve if you're used to things exploding. If you just want to be told today's word, ...

In addition to our main Game of the Year Awards 2025, each member of the PC Gamer team is shining a spotlight on a game they loved this year. We'll post new personal picks each day throughout the rest ...

Whether you're just starting out or have been enjoying the hobby for a while now, you'll know that there's a wide variety of puzzle sizes to choose from nowadays. Some puzzles contain thousands of ...

This problem has earned a reputation for being nearly impossible, leaving most people stuck before they even know where to begin. In this breakdown, you’ll explore why the challenge is so deceptive, ...

Abstract: Optimal placement of switches and tie lines is an integral task in distribution system planning. Owing to the problem complexity and the presence of binary decision variables, using ...