International Solving Contest 2009 – Problems

5th International Solving Contest (ISC)
25th January, 2009

Category 1 – Problems

Round 1, time 2 hours:

1

2#

2

3#
3

6#
4

=
5

h#3, 3 solutions
6

s#5

Round 2, time 2 hours:

7

2#
8

3#
9

4#
10

+
11

h#5
12

s#3

Solutions

 

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