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Small children have alphabet blocks, adults have mental blocks,
but the last straw is to have a mental block about an alphabet block! Illustrated are four views of the same alphabet block, |
Hints and strategies |
HINT 1
Draw a simple t shaped net of six squares for the cube and try putting the letters in the right letters and the right orientations in the squares. |
HINT 2
Did you have difficulties? Notice that the X is not helpful in determining orientations. More importantly, are there two different capital letters which might be confused? |
SOLUTION
The letters N and Z both appear on the block and cause confusion. In the given net for the cube, use Figure 1 to place E, N (say) and T. Next from Figure 2, place Z and V as shown. From Figure 3, place X. Now in Figure 4, it is clear that the missing letter is a V in the position <. |
EXTENSION
1. The trick in this puzzle is the confusion between the letters N and Z. Are there other capital letters which could be confused? lower case letters? Make up some puzzles of your own. 2. In the given puzzle, the letter X is not very helpful because of its symmetry. Investigate using other capital letters which have special symmetries. |