DAY 259:

Today’s Challenge

Kakuro is a fabulous puzzle which can drastically improve everyone’s number combination skills. The rules are very simple:

  • Just like a crossword, fill in the boxes,
  • Each box must contain a number from 1-9 and each run of boxes must add up to the total shown on the left or above,
  • Digits cannot be repeated in each run, so if a total of 4 is to be completed in 2 boxes, they must be made up of either 3+1 or 1+3, but not 2+2.

Here is an ideal challenge for all Kakuro beginners to try:

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 3rd & 7th rows contain the following fourteen numbers:

4    11    13    24    25    27    30    36    42    45    66    70    77    80

What is the sum of the multiples of 4?

Make 259 Challenge

Can you arrive at 259 by inserting 1, 3, 5, 7 and 9 into the gaps below?

(◯+◯)²+√(◯+◯+◯) = 259

Answers can be found here.

Click Paul Godding for details of online math tuition. Wherever you are in the world, please get in touch.

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