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Try the following: Go to Edit/Preferences/Micellaneous/JVMs and add the -Xss64M option to the "JVM Args for Interactions JVM" line to increase th amount of memory used.
The Sudoku Game
Sudoku is a 9x9 grid-based puzzle in which the goal is to place numbers from 1 to 9 in the grid squares taking into account specific constraints. The 9 x 9 puzzle grid can be seen as divided into 9 sub-grids of size 3x3. The 3 main conditions in the classic version of Sudoku state are that each square in the grid contains a number from 1 to 9 and a number cannot be repeated:
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