Survo puzzles: www.survo.fi/puzzles
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Copyright (c) Survo Systems 2006-2013

The easiest way to solve these three problems may be
using a Java Applet
http://www.survo.fi/swap/puzzles.html
based on the swapping method.

Survo puzzle 324/2013 (50) #343-93370

   A  B  C  D
1  *  *  *  * 18
2  *  *  *  3 28
3  *  *  *  * 32
  14 24 32  8

Survo puzzle 325/2013 (600) #353-21010

   A  B  C  D  E
1  *  *  *  *  * 40
2  *  *  *  *  * 48
3  *  *  *  *  * 32
   7 15 42 24 32

Survo puzzle 326/2013 (400) #353-6531

   A  B  C  D  E
1  *  *  *  *  * 62
2  *  *  *  *  * 20
3  *  *  *  *  * 38
  18 22 36 29 15