Posted 15 December 2006 - 01:31 PM
This new casual online game is ideal for teachers, maths students and parents. For teachers, www.CombinationLock.com provides them with a novel approach to helping students improve their powers of reasoning, deduction and logic. Maths students can play in their own time either ‘solo’ or competing in multiplayer mode against other puzzlers across the globe. For parents, www.CominationLock.com provides a fun way to stimulate their children’s interest in maths and logic.
Players are presented with an image of a combination lock which can be unlocked by using clues to enter the correct digits into the reels (from two to six depending on the level of difficulty selected). Clicking on the ‘Add a Clue’ button, allows players to receive additional clues to help them solve the puzzle, which only has one possible answer.
In the ‘Solo play’ mode, players complete three games sequentially as the locks are opened. The site automatically stores players' best times and shows how they compare with other players both in the same country and across the world. The best players are also highlighted on the home page of www.CombinationLock.com
The Multiplayer version lets puzzlers race to complete the same game, with the same clues at the same time. Once a player has successfully solved the puzzle, the other player(s) can continue to play until they too have finished.
CombinationLock.com doesn’t use Macromedia Flash, requires no downloads or plug-ins and is thus instantly accessible without running into firewall problems. No registration is required.
Posted 27 September 2007 - 02:49 PM
Even those who are rusty at math can use this tutorial-all you need is pen and paper. This "works" on reasoning ability. No prerequisites are required. Quizzes are available after each section, so you can proceed or read again..
Kudos to Chris Caldwell, who created this fun, rewarding tutorial.
Edited by Kathy Beckett, 27 September 2007 - 03:19 PM.
Posted 13 December 2007 - 08:12 AM
What's the shortest line that surrounds the largest area?
A line around self, and declaring oneself as standing on the outside.
(School hols + Christ Mass almost here=limited forum participation for many weeks)
Sounds a bit like mastermind or even cluedo, John. Once one has mastered the 'trick' one should not fail. ie inherent limitations, still, useful. Anything that awakens some form of lateral thinking is good. (IMO)
The "Myst" series (no shootemup, just beautiful and complex) (3) of computer games are chockablock with gradually harder and harder puzzles.
Some puzzle Classics:
One is in a room with two doors. At each door there is a person. A is a liar, B is a truthteller, one does not know which is which. Behind one door is a hungry tiger, behind the other freedom.
Only one question is allowed to only one person. What is it?
Draw a grid of dots three by three.
How to draw only four straight lines without lifting the pen that passes through all dots.
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