Heart No 9 ( PENITENCE ) Mystery Cache

To obtain the final coordinates of the cache you need to solve the following 4 puzzles. These are divided into groups of 2 for coordinates N and W. To solve the 'Right Part' one should have solved the 'Left Part' that will help you along. The games are in order: An enigma, A simple Sudoku, A simple Mastermind and ?????. The rules of the game are quite simple:

The Enigma: equal symbol must correspond to an equal number so the formula is right.

Sudoku: you must fill the grid so that every row, column and each box contains the digits 1 through 9 only once.

Mastermind: 6 numbers of the 6 in play, not necessarily different from each other, represent the solution; to guess the sequence just follow the clues of previous attempts where a black dot indicates a number present in the solution and at the right place while one gray indicates a number in solution, but in the wrong place.

??????? the empty boxes must be filled with numbers from 1 to 9. The sum of the digits of each block of cells horizontally and vertically must be equal to the number shown on the left or top of the block and each digit can not be repeated within the block.

Once you have completed the 4 games you can just replace the letters in the formula coordinate with their respective numbers obtained from the game and go get the cache..