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Problem Category Points AC % Users
ECOO '12 R1 P2 - Decoding DNA ECOO 5p 19.6% 375
ECOO '12 R1 P3 - Triangles ECOO 5p 24.7% 33
ECOO '12 R1 P4 - Boggled ECOO 7p 20.1% 81
ECOO '12 R2 P1 - Prime Time ECOO 5p 47.6% 80
ECOO '12 R2 P2 - Password Strength ECOO 5p 14.5% 23
ECOO '12 R2 P3 - Airport Radar ECOO 10p 13.8% 22
ECOO '12 R2 P4 - Lo Shudoku ECOO 10p 63.6% 7
ECOO '12 R3 P1 - The Word Garden ECOO 5p 51.6% 12
ECOO '12 R3 P2 - Jewelry Tips ECOO 12p 32.1% 7
ECOO '12 R3 P3 - Steam Arithmetic ECOO 7p 38.6% 145
ECOO '12 R3 P4 - Splitsville ECOO 10p 66.7% 5
ECOO '13 R1 P1 - Take a Number ECOO 5p 26.6% 1524
ECOO '13 R1 P2 - The Luhn Algorithm ECOO 5p 46.3% 386
ECOO '13 R1 P3 - Hexudoku ECOO 7p 48.3% 97
ECOO '13 R1 P4 - Coupon Day ECOO 10p 33.3% 26
ECOO '13 R2 P1 - Upsetris ECOO 5p 41.5% 37
ECOO '13 R2 P2 - The Walking Dead ECOO 7p 36.6% 12
ECOO '13 R2 P3 - Last Robot Standing ECOO 7p 42.9% 7
ECOO '13 R2 P4 - Breaking Rocks ECOO 10p 62.5% 15
ECOO '13 R3 P1 - Irregular Expressions ECOO 5p 22.5% 18
ECOO '13 R3 P2 - Mutant Children ECOO 10p 35.6% 14
ECOO '13 R3 P3 - Go With the Flow ECOO 10p 28.9% 11
ECOO '13 R3 P4 - Tour de Force ECOO 12p 48.8% 78
ECOO '14 R1 P1 - Martian Time ECOO 5p 26.1% 78
ECOO '14 R1 P2 - Orphan Black ECOO 5p 66.7% 38
ECOO '14 R1 P3 - Word Search ECOO 7p 40.4% 100
ECOO '14 R1 P4 - Fischer Random Chess ECOO 5p 37.9% 38
ECOO '14 R2 P1 - Scratch and Win ECOO 5p 9.0% 40
ECOO '14 R2 P2 - Black and Grey ECOO 5p 43.0% 29
ECOO '14 R2 P3 - EasySweeper ECOO 10p 36.5% 17
ECOO '14 R2 P4 - What Lies Ahead ECOO 10p 24.3% 22
ECOO '14 R3 P1 - Substitute Teacher ECOO 5p 49.0% 24
ECOO '14 R3 P2 - Mothers and Daughters ECOO 7p 59.0% 94
ECOO '14 R3 P3 - Future City ECOO 10p 23.8% 27
ECOO '14 R3 P4 - Baby Talk ECOO 10p 59.6% 33
ECOO '15 R1 P1 - When You Eat Your Smarties ECOO 5p 24.0% 1344
ECOO '15 R1 P2 - Word Wrap ECOO 10p 24.0% 151
ECOO '15 R1 P3 - Ten Pin Trig ECOO 10p 36.4% 43
ECOO '15 R1 P4 - Neanderthal Numbers ECOO 10p 34.3% 212
ECOO '15 R2 P1 - The Interlace Cypher ECOO 7p 46.4% 78
ECOO '15 R2 P2 - So So ECOO 12p 17.0% 10
ECOO '15 R2 P3 - Lucas' Other Tower ECOO 10p 46.4% 333
ECOO '15 R2 P4 - Rectangle Roundup ECOO 12p 32.9% 17
ECOO '15 R3 P1 - Just the Factoradics, Ma'am ECOO 7p 45.9% 39
ECOO '15 R3 P2 - Tiling Trouble ECOO 15p 20.0% 2
ECOO '15 R3 P3 - Roadie Cross ECOO 10p 11.6% 6
ECOO '15 R3 P4 - Under the Rug ECOO 12p 7.0% 2
ECOO '16 R1 P1 - Pass or Fail ECOO 5p 25.9% 311
ECOO '16 R1 P2 - Spindie ECOO 7p 24.3% 212
ECOO '16 R1 P3 - Railway Sort ECOO 7p 38.9% 343