http://code.activestate.com/recipes/tags/puzzle/2013-02-11T10:32:26-08:00ActiveState Code Recipes2013-01-12T05:26:55-08:00Eviatar Bachhttp://code.activestate.com/recipes/users/4184885/http://code.activestate.com/recipes/578414-takuzu-solver/

<p style="color: grey"> Python recipe 578414 by <a href="/recipes/users/4184885/">Eviatar Bach</a> (<a href="/recipes/tags/constraint/">constraint</a>, <a href="/recipes/tags/constraint_solver/">constraint_solver</a>, <a href="/recipes/tags/puzzle/">puzzle</a>, <a href="/recipes/tags/takuzu/">takuzu</a>). Revision 2. </p> <p>A Takuzu solver implemented using Google's Constraint Programming solver, part of the or-tools project.</p> <p>A Takuzu board consists of a square grid of binary cells. There must be an equal number of 0s and 1s in every row and column, no duplicate rows or columns, and no more than two of the same bit consecutive in every row and column.</p>

2013-02-11T10:32:26-08:00Thomas Lehmannhttp://code.activestate.com/recipes/users/4174477/http://code.activestate.com/recipes/578454-puzzle-four-cubes-with-different-colors-on-their-s/

<p style="color: grey"> Python recipe 578454 by <a href="/recipes/users/4174477/">Thomas Lehmann</a> (<a href="/recipes/tags/colors/">colors</a>, <a href="/recipes/tags/cube/">cube</a>, <a href="/recipes/tags/puzzle/">puzzle</a>). </p> <p>I have four cubes (in real) with different colors on their sides as a puzzle with the final goal to place each cube side by side that way that on each visible side (except the two ends) you can see four different colors.</p> <p>I have placed the cubes as they are (side by side) writing down the current colors (see function main). The CubesChecker class is searching for one solution. You don't see the operation on how to rotate but knowing the final state it's really easy to do it yourself then.</p>

2010-07-26T16:32:08-07:00Jack Trainorhttp://code.activestate.com/recipes/users/4076953/http://code.activestate.com/recipes/577335-martin-gardners-the-monkey-and-the-coconuts-proble/

<p style="color: grey"> Python recipe 577335 by <a href="/recipes/users/4076953/">Jack Trainor</a> (<a href="/recipes/tags/martingardner/">martingardner</a>, <a href="/recipes/tags/mathematical/">mathematical</a>, <a href="/recipes/tags/puzzle/">puzzle</a>). </p> <p>Five sailors arrive at a deserted island that has only coconuts and one monkey. The sailors collect all the coconuts into one big pile and agree to divide up the coconuts into equal shares the next morning. However during the night each sailor wakes up one at a time afraid to trust the others and decides to take his share secretly. So each sailor takes 1/5 of the coconuts and hides it. Each time there is one coconut left over and the sailor gives that to the monkey. In the morning they divide what is left of the pile into equal shares and there is still one coconut left for the monkey.</p> <p>How many coconuts were in the original pile?</p>

2008-09-12T00:18:27-07:00Collin Stockshttp://code.activestate.com/recipes/users/4149235/http://code.activestate.com/recipes/576505-sudoku-solvercreator/

<p style="color: grey"> Python recipe 576505 by <a href="/recipes/users/4149235/">Collin Stocks</a> (<a href="/recipes/tags/just_for_fun/">just_for_fun</a>, <a href="/recipes/tags/puzzle/">puzzle</a>, <a href="/recipes/tags/sudoku/">sudoku</a>). </p> <p>This program can solve and create sudoku puzzles</p>