Earlier today I pose the following problems to you. Here they are again with solutions.
Puzzle 1 Can you make 24 using only the numbers 1 to 9 and the basic arithmetic operations? Here is one way that puts all the numbers in the right order.
(123456 x 7) + 8 + 9
Beginner level: find another way.
Advanced level: find another way with the numbers in vice versa order
Solution
Here’s one way, courtesy of number guru Inder Taneja:
98 + 7 + 6 – 54 – 32 – 1
Puzzle 2 In each of the examples below, the shapes A to L are either color blocks or stencils (ie squares with holes in them.) The shape on top is made by stacking A to L on top of each other. Your task is to work out which stencils/squares are used and in which order.
![xmas puzzle 1 stenciletto](https://i.guim.co.uk/img/media/0f4ba808a88079d1ca6759e1e9292ade5da889a7/0_0_2614_2820/master/2614.png?width=445&dpr=1&s=none)
Solution DHKJI
![xmas puzzle 2 stenciletto](https://i.guim.co.uk/img/media/5d6e44ba8e269b355377de46bc18c6960b806c93/0_0_2614_2790/master/2614.png?width=445&dpr=1&s=none)
Solution AFCGE
![xmas puzzle 3 stenciletto](https://i.guim.co.uk/img/media/4848141e1bdf80010843cb241d439952bdd81e2c/0_0_2614_2799/master/2614.png?width=445&dpr=1&s=none)
Solution KIFLJG
![xmas puzzle 4 stenciletto](https://i.guim.co.uk/img/media/3daf22dc8654486c0b491a3f4dfb619169263a19/0_0_2614_2785/master/2614.png?width=445&dpr=1&s=none)
Solution LEIFKJ
![xmas puzzle 5 stenciletto](https://i.guim.co.uk/img/media/2751cebd7a7dd81d1d3e10472be3a53b9072a034/0_0_2614_2789/master/2614.png?width=445&dpr=1&s=none)
Solution ELFICJ
You can find more of these stencil puzzles on the app Stenciletto, which can be downloaded www.smileyworldgames.com.
Happy Holidays! I’ll see you next year.
I’ve been doing a puzzle here on alternate Mondays since 2015. I’m always on the lookout for great puzzles. If you want to suggest one, email me.