http://code.activestate.com/recipes/tags/puzzle-martingardner/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>

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>