# Tag Info

Accepted

### Largest number possible with +, -, ÷

Is there anything in the rules preventing us from simply doing ?
• 7,715
Accepted

### Maximizing the common value of both sides of an equation

We can do which equals
• 7,715

### Largest prime number with +, -, ÷

I believe the answer will be obtained through Note that
• 3,639
Accepted

### Unorthodox angle measuring device

The device is a: Then: This device also fits the three hints:
• 18.1k
Accepted

### Rearrange these numbers and symbols to make a true equation

The answer is: We know that there's something tricky because: Incidentally,
• 348
Accepted

### Maximizing the common value of both sides of an equation (part 2)

We can do which is pretty large, indeed. If I'm getting the (rather tricky) maths right the value is between
• 7,715

### Maximizing the common value of both sides of an equation (part 2)

Sorry I missed the fifth arithmetic operation --- power, and thanks for @franck vivien's advice! Here is my update: And, as a supplement, in order to see the order of magnitude comparisons...
• 725
Accepted

### Fill the grid with numbers to make all four equations true

The filled grid: Explanation:

• 12.8k

I can do With
• 1,574

### Largest number possible with +, -, ÷

I can currently do This is achieved via
• 3,600

### Maximizing the common value of both sides of an equation (part 2)

Here is my attempt:
• 15.4k
Accepted

### Overlap two Chess Games

This seems closely related to the two king task. The optimal solution by G.Ponzetto Game 1: together with a trivial Game 2: should be pretty hard to beat. Total number of half moves: 34
• 7,715

### Fill a grid with numbers so that each row/column calculation yields the same number

One possible solution is: I found this by I'm not sure
• 8,470

### Four out puzzle: Get rid of a six digit number in 4 moves

This is not always possible (under the assumption that every intermediate result must be an integer, which can likely be removed). In order to reach exactly zero, the last operation must have been a ...
• 3,600

### Fill a grid with numbers so that each row/column calculation yields the same number

It is possible to find a solution by hand using more logic and less bruteforcing/guessing. First use Someone's insight: Also note the number 5: and the symmetry of the grid: Make an educated guess: ...
• 17k

### Maximizing the common value of both sides of an equation

This is a small improvement on franck vivien's answer. If you upvote this, please also upvote theirs. The equation has value
Accepted

• 725

### Maximizing the common value of both sides of an equation (part 2)

Pretty sure you can get a lot bigger than this, but.. which is
• 251

### Unorthodox angle measuring device

Not an exact solution, but worth a try Could you be using a How? The issue I have is
• 5,061

I can do with
• 5,061

### Fill a grid with numbers so that each row/column calculation yields the same number

Nothing clever here, just a programmed evaluation of all permutations. There are three essentially different solutions: Each of these can be manipulated through row/column swaps and/or reflection ...
• 16.7k

### Overlap two Chess Games

Here's my silly attempt: Game A: Final position in Game A: Game B: Combining these two positions will then yield the Maximum Synergy Bongcloud: which is (always) a legal position. (White will need ...
• 78.6k
Accepted

### It’s the transition that matters

As per the hint, divide the number by 103 if it's an exact multiple, and otherwise subtract 101. Keep repeating this and after 368 operations, the number becomes 1. The fact that both operations ...
• 28.1k

### Maximizing the common value of both sides of an equation (part 2)

Here are my attempts: which is between
• 1,498

Consider
• 11.9k

### Unorthodox angle measuring device

I'm not really sure about the precision/accuracy but I think this could be on the right track. If not the correct method, then at least that it's related to the If we convert the first term in each ...
• 38.9k
1 vote

### Unorthodox angle measuring device

Don't know such a device, but it's technically possible: ...
• 6,784
1 vote
Accepted

### Fill a grid with numbers so that each row/column calculation yields the same number

Based on other answers that already classified all solutions to the original puzzle, here is an observation that one can solve the puzzle with an additional constraint. Namely one can request that all ...
• 2,044
1 vote

### A variant of the 2-Chess Games overlapped

Note: I assume the discarded kings to be exempt from the no-collision rule. Game 1: Game 2: I do not claim minimality. Overlay Game 2 pieces circled:
• 7,715

Only top scored, non community-wiki answers of a minimum length are eligible