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Some Brain Teasers
Martyn Steel's sent in these puzzles that he says work very well with 10 and 11 year olds. Martyn has kindly supplied some possible answers.


In a 6 x 4 milkcrate arrange 18 bottles so that when added vertically or horizontally the number of bottles when added is always even.

Place 8 Queens on a chessboard so that no Queen is in a position to take another.

Starting at any one corner of a chessboard visit every square with a Knight without duplicating a visit.

Solutions?


 

 

 

 

 

 

 

 

 

 

 

 
b
b
 
b
b
b
b
b
b
b
b
b
 
b
 
b
b
   
b
b
b
b

Milk crates
     
Q
       
 
Q
           
           
Q
 
   
Q
         
         
Q
   
             
Q
Q
             
       
Q
     

Queens
34
21
48
9
32
19
60
7
49
10
33
20
59
8
31
18
22
35
58
47
40
43
6
61
11
50
41
44
63
46
17
30
36
23
64
57
42
39
62
5
51
12
25
38
45
56
29
16
24
37
2
53
14
27
4
55
1
52
13
26
3
54
15
28

The knight
 

 




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