Another day, another helpmate to solve!
Here's a really complicated one!
The Black pawn on Black's first rank moves like a normal Black pawn. It's White to move first.
Given that White moves to help Black checkmate themselve, find the quickest mates such that Black mates:
-With a queen
-Wi...
In reaction to Three-dimensional light bulbs - rules are same (almost)
This is a four-dimensional Akari puzzle (also known as Light Up). The nine squares represent the layers of a $3\times3\times3\times3$ hypercube, top to bottom (… or something like that). The objective is to add light b...
strong textHave a 8 piece wooden puzzle that I can not solve. 8 separate pieces, all the same width, suppose to make a cube. Please help.
This is a four-legged walky-square:
This shape has an interesting property: It is possible to map multiple copies of this shape onto the surface of a cube in a way that perfectly covers the entire cube with no gaps and no overlaps.
How can it be done, and how many copies of the shape are need...
I'm in a jam – cornered I am! –
No clue 'bout where to go
Here's what went down, a pretty gown
Some wine, a French chateau
She whispered underneath her breath
"Come dance with me and know
what's coming up – so far away –
oh darling, please follow!?"
I dropped my guise –...
In mathematics, a continued fraction is an expression obtained through an iterative process of representing a number as the sum of its integer part and the reciprocal of another number, then writing this other number as the sum of its integer part and another reciprocal, and so on. In a finite continued fraction (or terminated continued fraction), the iteration/recursion is terminated after finitely many steps by using an integer in lieu of another continued fraction. In contrast, an infinite continued fraction is an infinite expression. In either case, all integers in the sequence, other than...
Prologue - Instructions
Shamelessly cpoied and pasted the following from @jafe's puzzle :P
This is a three-dimensional nonogram. The first ten squares depict the layers of a $16\times16\times16$ cube. The final square gives the enumerations for the Z-axis, top to bottom. Some rules:
If a row...
5 pirates of different ages have a treasure of 100 gold coins.
On their ship, they decide to split the coins using this scheme:
The oldest pirate proposes how to share the coins, and ALL pirates (including the oldest) vote for or against it.
If 50% or more of the pirates vote for it, then the ...
2
There are words from which you can remove a "chunk", leaving a new word. Like this:
WISHBONE
WI SHBO NE
WI SHBO NE
WI <poof!> NE
WI NE
WI NE
WINE
There are also words that work the other way, for which inserting a "chunk" produces a new word. Fo...
I am absolutely stumped at this one. There should be a ~1-5 word answer that is somehow hidden in this. the one thing that I can see is that "Worth" and "million" are the only words that don't contain an 'a'. My regular techniques are failing me here.
