21 PUZZLE

Invented by W.Firth and made by Perry & Company in the late 19th Century. This unusual puzzle consists of 21 blocks with numbers on both sides. The objective is to arrange them in the box so that short columns of three numbers add up to 33 and the long rows of seven numbers add up to 77. Top and bottom at the same time.

Here are the numbers so you can play with the puzzle yourself:-

 

 1- 3
1-17
2- 9.
2-19
3-20
4- 8
4-14
5-20
5-21
6-15
6-16
7-10
7-18
8-16
9-10
11-19
12-11
13-12
13-14
15-21
18-17

Solve by hand before using a computer.

Send us your solution.

 

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