Your task is to solve a new puzzle called Cubax. This toy is actually a Chinese puzzle whose expected “final” state is a simple cube. During the festivities, Cubax unfolded, because it cannot move when folded. Cubax is composed of N³ smaller cubes (elements) linked together in a kind of doubly li...

Score a curling end code-golfgeometrygame Curling is a sport where two teams aim to place stones as close to the centre of a target as possible. The winner of a curling end is the team whose stone is closest to the centre – they score as many points as the number of their stones closer to the cen...

Background In a 2d game that I play, each screen is a 2d grid of tiles with walls and walkable tiles, with the player only able to travel on walkable tiles, and being stopped by walls. When the player walks past the edge of the screen, he will travel to the adjacent screen on the map, with the pl...

long time SO user, first time on CG. I just noticed a bug that I had never seen before: this question has an answer (from the user ths) without voting buttons: What's going on here?

Real-world progress bar Backstory, skip if you like Generating high quality pseudo random numbers is a tricky business but the fine engineers at < enter company you love to hate > have mastered it. Their progress bars effortlessly rise above the primitive notion of linearly passing time and add a...

Mahjong is a tabletop game played using tiles. It features three "number" suits (pins, sous, mans, represented as p, s and m) from 1 to 9, and one "honor" suit z of seven distinct tiles. Note that contrary to western card games, tiles are not unique. To complete a hand and win, the 13 tiles in y...

Curling is a sport where two teams aim to place stones as close to the centre of a target as possible. The winner of a curling end is the team whose stone is closest to the centre – they score as many points as the number of their stones closer to the centre than any of their opponents. Task Give...

Will the dominoes topple? Your input contains a list of positive integers representing the height of a row of dominoes. As many of us know, when you have a row of dominoes and push the first one, the rest will topple in a chain reaction. But if the next domino is too big, it will not fall. This d...

Bigger regex? decision-problemcode-golfregex You are given two regexes and your task is to determine if the strings matched by the first regex are a subset of the strings matched by the second regex. For this we are going to use a limited mathematical definition of a regex. A regex is defined rec...

Problem A fact you may have noticed about factorials is that as \$n\$ gets larger \$n!\$ will have an increasing number of \$0\$s at the end of it's base \$10\$ representation. In fact this is true for any base. In this challenge you will be given a base \$b > 1\$ and an integer \$n > 0\$ and yo...