| Download of a small
applet ("red5.exe", 50 kb), written in VB 5, expected to run under every The applet generates all reduced 5x5 magic squares, where entries may be prescribed by the user. A 5x5 magic square is called reduced, if the following nine inequalities hold (see [some theory]): | |
 | fixed entries the user may prescribe fixed entries, if no fixes are made, the program starts with the "first" reduced 5x5 magic square, where the entries c01, ...,c25 are computed in the following order: c01, c05, c21, c25, c13, c08, c14, c12, c18, c07, c19, c09, c17, c02, c22, c04, c03, c24, c23, c11, c15, c06, c10, c16, c20. test the user made entries are tested; a passed test means no guaranty, that there exists a reduced 5x5 magic square with these entries. start the search for reduced 5x5 magic squares begins. |
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stop causes a break, the user is asked whether to continue or not. fixed entries are displayed in red color, the grey numbers show the algorithm in action. date and time are displayed when the computation starts and when the computation ends. the solution number and the last found solution are displayed. count only solutions are not displayed, when checked. stop at next solution causes a break, when the next solution is found. |
| home some theory
general 5x5 squares |
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