Queens, by LinkedIn’s Post

Day 54 -- Queens, by LinkedIn and Thomas Snyder Queen's Puzzle. I enjoy these puzzles because after I solve the puzzle, I can spend more time figuring out what the short path of justified reasoning is. Now I did not find the shortest reasoning path in this puzzle, for some time. (No doubt having being overserved at my wife's birthday party last night) In the end, I came up with this path of reasoning. But, does this count as proof or not? I have some doubts this as a proof, even though it is clearly right. Your opinions are welcome. [Notation: # refers to step: justification. The numbers show the squares which are eliminated.] 1: Cover 4, aqua, red, yellow and brown. 2: Green line. 3: Pink line. Ok, because we know that orange and purple are confined to the corners, row 2 is either blue or green. Suppose blue, then we would have a 5 cover, shown in the diagram as dotted lines and the result would be the elimination of all but one of the pinks. But that remaining pink is touched by the remaining greys. Contradiction: place the green Queen at R2C2. The rest is fairly straightforward, but not mechanical.

Completed in 3 minutes

Dear #folks, I hope you're doing well! Recently, I had a lot of fun playing a game here on LinkedIn, and I'm curious to know if any of you have given it a try. It's a great way to engage and learn new things while having fun. Have you played it yet? I'd love to hear your thoughts and experiences! If you haven't tried it yet, Give it a go and let me know what you think! #QueensByLinkedIn #LinkedInGames #EngageAndLearn #FunAtWork #HRCommunity #PlayAndLearn #ProfessionalFun #TeamEngagement #LinkedInChallenge #JoinTheFun

Exciting news! LinkedIn has launched a fun new feature called "The Queen's Gambit," inspired by the popular chess series. This interactive game allows users to challenge their strategic thinking and compete with peers, adding a playful twist to professional networking. Check it out and see how your moves stack up! #LinkedIn #QueensGambit #NetworkingGame #queensbylinkdin

So, at first I didn't like this game. Because to resolve the green queen placement, I had to resort to proof by contradiction. Which is less satisfying than a direct proof. Spoiler: But, then I found a very cool application of the touching rule. For one of the greys. First, eliminate all but 2 of the greens. Next, use the cover 3 rule to eliminate some grey. And now, this is the neat part, one of the 4 remaining greys is touched by one color and so can be eliminated. I leave to you to find the grey and the color. But, its elimination leads to a revealed cover 2 rule, which blows the game wide open. Confession: I do the puzzles offline and then review my work. In this puzzle, when I reviewed by placements, I realized that although I got the right result, I had made an error in reasoning. Just luck that I wasn't wrong. Had I not reviewed my work I wouldn't have found the cool touching application. Always be reviewing.

Notes on the Official Walkthrough of Queens, by LinkedIn. Now, this was a fun walkthrough. I think it only used 2 Rules - cover 1 and elimination. However, there is a very important structural rule that could have been used in this game: we are promised, much like in Sudoku, that the solution is unique. You can take advantage of this structural rule -- look for my explanation in the comments, as I have to post a picture.

The symmetry of the grey cross attracts attention. Relatively easy to show that the grey Queen must be in certain place. A nice cover 3 after that and you will have Queens 1-5 and then the game falls apart. **Cover 2 Rule: two colors cover two rows/columns if no color is outside the two rows/columns. All the other colors can be eliminated in those two rows/columns.** Extension to Cover 3 is obvious.** But what might be more interesting, is the fact we can start from either grey being a horizontal line or a vertical line. But starting with grey being vertical gives more obvious or mandated next moves. Starting from grey being horizontal, your next move has to be spotting a cover 5! Which may not be obvious. It certainly wasn't too me.

Just played Queens No. 11 by Thomas Snyder, and I have to say, it was quite the brain-teaser! 🧠💡 If you haven't checked it out yet, give it a go here: http://lnkd.in/queens For those who haven't played, it's a visual logic game where the goal is to fill the grid so that each row, column, and colored region contains exactly one Queen (👑), with no Queens touching each other, even diagonally. I found myself strategizing and meticulously placing Queens to ensure I met all the conditions. It's definitely a challenge worth taking on, especially if you're a fan of logic puzzles! What's your strategy for solving it as quickly as possible? Share your thoughts below! 👇 #QueensGame #LogicPuzzles #BrainTeasers #Puzzles

If you love playing LinkedIn 's Queen game, this post is for you. If you play, you already know that LinkedIn allows only 1 game a day. So if you've to wait for the next day to play it, well, now you won't have to. You can visit: https://lnkd.in/dBMDFk9c (to play the game until your battery runs out, just kidding 😛 ) What you can expect from the webapp: 1. You can change chessboard size (currently from 4 to 8), and for a particular size, you can keep shuffling to play a 'new' game. 2. You can use 'Cheat mode' to create custom board and see their solutions (basically you're giving CPU, the chessboard to solve). [it might have few bugs, which I am working on. ] The difficulty 'might' be easy for many of you. [trying to generate 'hard' random boards.] PS: Feel free to comment/DM your feedback, if any. #linkedin #linkedingames #weekend