MATHEMATICS

Select one of the following problems to solve.

# Name Favorite Solved Level
1028 Collectable Cards Favorite 14,531 3
1093 Vampires Favorite 1,798 3
1138 Digits Count Favorite 1,034 8
1161 Factorial Sum Favorite 17,695 5
1163 Angry Ducks Favorite 1,307 7
1169 Grains in a Chess Board Favorite 7,017 4
1170 Blobs Favorite 11,857 3
1193 Base Conversion Favorite 3,681 3
1197 Back to High School Physics Favorite 9,493 1
1198 Hashmat the Brave Warrior Favorite 9,539 5
1199 Simple Base Conversion Favorite 4,144 3
1202 White Nights Festival Favorite 949 7
1212 Primary Arithmetic Favorite 4,807 8
1213 Ones Favorite 2,471 5
1214 Above Average Favorite 6,821 3
1219 Colourful Flowers Favorite 2,185 5
1220 The Trip Favorite 1,049 7
1221 Fast Prime Number Favorite 10,561 6
1230 Integral Favorite 70 10
1232 Rubik Cycle Favorite 243 7
1233 Star Favorite 968 6
1240 Fit or Dont Fit I Favorite 7,962 2
1247 Coast Guard Favorite 3,977 2
1264 An Easy Problem! Favorite 457 7
1279 Leap Year or Not Leap Year and … Favorite 2,492 6
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