50 GAMES WORLD^ OF PUZZLES | december 2019
To solve these puzzles, place a white or black dot in some of the blank squares in the diagram. Every dot must be
adjacent (horizontally, vertically, or diagonally) to exactly two dots of the same color. But here’s the catch: Every
dot must also be adjacent to at least one dot of the other color. Only one dot is allowed per square, and no dots
are allowed in squares containing an X. An example of a solved puzzle is shown below. ANSWERS, PAGE 78
'ȳǘȱǤ BY ERICH FRIEDMAN
12
345
678
9101112
13 14 15
EX
A
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P
LE