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Problem

Find a pattern in this matrix and fill in the missing letters.

Type the missing letters in boxes and press the Submit button. Both capital and lower case letters are acceptable.

 

 B   B 
 B   C 
 B   A 
 B   D 
 C   B 
 C   C 
 C   A 
 A   C 
 A   D 
 D   B 
 D   D 

 

The idea of this puzzle is from the book 'Mathematics, 1st Grade.' by L.G. Peterson. Balass, S-Info (in Russian)

Click here to return to the puzzle page

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