Puzzle 197
Fill in the missing numbers with the digits 1 to 9. A diamond shape in the middle means that the four numbers around it add to 20.
Each uses a different way to add to 20, if there is already 1 + 3 + 7 + 9, then there will not be another using the digits 1, 3, 7 and 9 (in any order).
The same digit isn't allowed to touch, even diagonally.
Puzzle Copyright © Elliott Line
This puzzle appeared in Mensa's EnigmaSig (195.08) and is used with permission.
Puzzle 198
How many squares, of any size, can be found on a standard chessboard?
How many rectangles, of any size, can be found on a standard chessboard?
Remember when counting the rectangles, that squares are also rectangles.
Puzzle 199
What number comes next in this sequence:
1 · 4 · 1 · 5 · 9 · 2 · ?
Puzzle 200
Which name is missing from this sequence:
Richard · ? · Keith · Graham · Kevin · James · Matthew
Choose from:
Simon, Steve, Bob, Frank, Gavin