http://www.stampcollectioninfo.com/different-blocks/
whats that game where you have some blocks and you have to fill in a rectangle?
the have different colored blocks and you have to put it in a rectangle with no parts sticking out of the rectangle?
You're thinking of Tangrams. There can be many shapes you must make using the pieces.
http://en.wikipedia.org/wiki/Tangram
Here is more information on Tangrams.
If you like solving them and have an iPhone/iPod Touch, TanZen is a great tangram game.
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 Small Group of Different Modern Official Mail Stamps in Margin Blocks MNH $3.00 (1 Bid) Time Remaining: 1h 3m |
 U S Presidential series 1938 Plate Blocks MNH 24 different 1 2c through 20c + 25 $14.39 (4 Bids) Time Remaining: 1h 22m |
 1 3 5 Cent Stamp Blocks Unused US Postage Stamp 1936 1948 Eight Different Blocks $0.99 Time Remaining: 2h 11m |
 25 DIFFERENT 5 CENT PLATE BLOCKS MNH FREE SHIPPING $7.49 Time Remaining: 2h 12m |
 US 24 DIFFERENT PRECANCELED BLOCKS OF FOURNICE VARIETY $4.95 Time Remaining: 2h 19m |
 POPS STUFF 38 DIFFERENT AIRMAIL PLATE BLOCKS MNH FACE VALUE 1916 $21.22 (8 Bids) Time Remaining: 3h 12m |
 25 DIFFERENT 6 CENT PLATE BLOCKS MNH FREE SHIPPING $8.95 Time Remaining: 3h 13m |
 POPS STUFF 57 DIFFERENT AIRMAIL PLATE BLOCKS MNH FACE VALUE 2892 $39.65 Time Remaining: 3h 15m Buy It Now for only: $39.65 |
 US Lot of All Different blocks of 4 and 6 Includes back of book blocks $1.30 (2 Bids) Time Remaining: 3h 23m |
 1976 7 MNH PLATE BLOCK STRIPS 13c lot of 10 different issues $32.65 Time Remaining: 3h 24m Buy It Now for only: $39.85 |
 33 DIFFERENT 5 CENT PLATE BLOCKS MNH FREE SHIPPING $9.95 Time Remaining: 3h 44m |
 First Block of Four Different Designs 5c Christmas Issue 1964 $0.99 Time Remaining: 6h 17m |
 1928 1932 Lot of 8 Different Blocks of 4 TWO CENT REDS MH OG VG List $0.99 Time Remaining: 18h 44m |
 1242 1508 MVFNH OG 91different ZIP blocks of 4 $19.99 Time Remaining: 20h 41m |
 1938 PRES SERIES 10 DIFFERENT BLOCKS MNH WITH PL NUMBERS SCV 30+ K10 $9.95 Time Remaining: 21h 51m |
 US 604 FACE M NH POSTAGE LOT OF FIVE DIFFERENT PLATE BLOCKS OF FOUR $4.99 (1 Bid) Time Remaining: 1d 2h 17m |
 409 XF OG NH 4 DIFFERENT POSITION PLATE BLOCK OF 6 CV 23000 BN7301 $225.00 Time Remaining: 1d 5h 1m Buy It Now for only: $225.00 |
 409 PLATE BLOCK OF 6 XF OG HR 4 DIFFERENT PLATE POSITION CV 14000 BN7303 $120.00 Time Remaining: 1d 5h 12m Buy It Now for only: $120.00 |
 483 XF OG HR PLATE NO BLOCK OF 6 WITH 4 DIFFERENT POSITION CV 46000 BN7218 $350.00 Time Remaining: 1d 14h 18m Buy It Now for only: $350.00 |
 484 XF OG NH PLATE BLOCK OF 6 WITH 4 DIFFERENT POSITION CV 60000 BN7219 $450.00 Time Remaining: 1d 14h 19m Buy It Now for only: $450.00 |
 483 PLATE NOS BLOCK OF 6 W 4 DIFFERENT POSITION XF OG NH CV 76000 HV773 $699.00 Time Remaining: 1d 17h 50m Buy It Now for only: $699.00 |
 US MNH Slogan Blocks 8 different with FV of 368 $1.99 Time Remaining: 1d 19h 37m |
 US MNH Slogan Blocks 8 different with FV of 288 $1.99 Time Remaining: 1d 19h 43m |
 US MNH Slogan Blocks 8 different with FV of 450 $1.99 Time Remaining: 1d 19h 56m |
 USED 11 Block of 4 2 Pairs +3 More All Different $0.99 Time Remaining: 1d 20h 50m |
 LOT OF 24 DIFFERENT MINT NH US AIRMAIL PLATE BLOCKS $11.50 (2 Bids) Time Remaining: 1d 23h 32m |
 LOTSABLOCKS 806 Presidential 2 Different Plate Blocks 24324 F VF NH Low Start $3.25 (2 Bids) Time Remaining: 2d 2h 15m |
 LOTSABLOCKS 814 Presidential 2 Different Plate Blocks 24311 F VF NH Low Start $2.59 Time Remaining: 2d 2h 18m |
 LOTSABLOCKS J82 Postage Due 2 Different Plate Blocks 25641 F VF NH Low Start $2.79 Time Remaining: 2d 2h 24m |
 55 Different MNH 1940s 50s 60s Plate Blocks $5.24 (6 Bids) Time Remaining: 2d 4h 19m |
 19 Different 29 MNH Plate Blocks $16.66 (4 Bids) Time Remaining: 2d 4h 24m |
 11 Different 10 MNH Large Plate Blocks $2.25 (3 Bids) Time Remaining: 2d 4h 29m |
 10 Different 13 MNH Large Plate Blocks $3.25 (3 Bids) Time Remaining: 2d 4h 34m |
 15 Different 18 MNH Large Plate Blocks $2.25 (2 Bids) Time Remaining: 2d 4h 39m |
 6 cent plate blocks 38 different Mint never hinged MNH $24.75 Time Remaining: 2d 5h 3m Buy It Now for only: $24.75 |
 5 cent plate blocks 40 different Mint never hinged MNH $22.50 Time Remaining: 2d 5h 3m Buy It Now for only: $22.50 |
 5 cent plate blocks 33 different Mint never hinged MNH $18.50 Time Remaining: 2d 5h 3m Buy It Now for only: $18.50 |
 9 different BLOCKS 4 to 10 stamps in each block $1.50 Time Remaining: 2d 9h 3m |
 STAMPS UNITED STATES 38 Used Blocks of 4 All Different No Duplicates Nice Mix $2.99 Time Remaining: 2d 15h 50m Buy It Now for only: $3.99 |
 United States Sc 1837a MNH Pl Block of 12 NW Indian Masks 5 Different Pl s $3.99 Time Remaining: 2d 16h 2m |
 US 3 DIFFERENT UNITED STATES BLOCKS MINT NEVER HINGED Lot 1290 $0.99 (1 Bid) Time Remaining: 2d 16h 38m |
 US 3 DIFFERENT UNITED STATES BLOCKS MINT NEVER HINGED Lot 7550 $0.99 Time Remaining: 2d 16h 40m |
 Lot of 15 Different 5c Plate Blocks MNH OG $3.00 Time Remaining: 2d 16h 51m |
 US 2 DIFFERENT UNITED STATES PLATE BLOCKS MINT HINGED Lot 5687 $1.99 Time Remaining: 2d 17h 49m |
 50 DIFFERENT 5 CENT ERA USA PLATE BLOCKS VFNH NICE LOT $8.95 Time Remaining: 2d 18h 15m |
 US 2 DIFFERENT UNITED STATES BLOCKS MINT HINGED Lot 9817 $2.99 Time Remaining: 2d 18h 23m |
 US 8 DIFFERENT DEN BLOCKS MIXED CONDITION MH MNH NO GUM Lot 3 $2.99 (1 Bid) Time Remaining: 2d 20h 4m |
 US 3 DIFFERENT UNITED STATES PLATE BLOCKS MINT NEVER HINGED Lot 38 $0.99 Time Remaining: 2d 20h 23m |
 US 3 DIFFERENT UNITED STATES BLOCKS MINT NEVER HINGED Lot 9850 $0.99 Time Remaining: 2d 21h 46m |
 US 3 DIFFERENT UNITED STATES BLOCKS MINT NEVER HINGED Lot 4327 $1.99 Time Remaining: 2d 21h 46m |