1. Distances
Put number from 1 to 15 (every number uses only one time) into circles, so that distance between centres of circles 1 and 2 was less then distance between centres of circles 2 and 3 which less then distance between centres of circles 3 and 4 and so on. Answer's format: Write numbers row by row from left to right.For example the answer will be: 5, 3, 10, 2, 8, 7, 1, 4, 6, 9.
Score: 6 points. | |||

2. Numbers
Place numbers from 1 to 13 (every number uses only ones) into cells, so that numbers in the cells, having common side, have difference at least 3. Some numbers are already given. Answer's format: Write sums in tree rings starting with external ring and finishing with internal ring. For example the answer will be: 32, 32, 19.
Score: 8 points. | |||

3. Loops in hexagons
Hexagonal field includes some closed loops. Every cell, which belongs to loop, has exactly two neighbours on this loop. Numbers in the cells show how many neighbouring cells belong to loops. Cells with number do not belong to loops. Answer's format: Write quantity of cells inside the loops in increasing order. For example the answer will be: 1,1,2,3.
Score: 7 points. | |||

4. Magic square
Put numbers from 0 to 9 into the cells, so that every row, every column and every marked region have not repeating number. Answer's format:Write numbers from marked cells starting with left down cells and ending with right top cells. For example the answer will be: 2,1,1,1,3.
Score: 8 points. | |||

5. Robot
The robot goes according to the program. The program is the sequence of commands. Each command is one of the symbol L, R, U, D which represent command to go left, right, up and down. Movement begins with first command then make next and so on. After last command robot go to the first. If robot cannot move in that direction which specified in the command, then he passes this command. Make program so that robot moves form start (S) to finish (F), uses no more then eight commands. Answer's format: Give the program. For example the answer will be (with five commands): RURDD.
Score: 9 points. | |||

6. Circles
Draw single closed loop without intersection, which passes from some of the cells. Loop must make turn on every black circle and cannot make turn in cells just before and after the black circle. Loop cannot make turn on white circle but must make turn before or after the white circle. Loop must go through all cells with circles. Answer's format: Count the cells, which not belong to loop. For example the answer will be: 8.
Score: 7 points. | |||

7. Coloured minesweeper
Place mines of two colours in the cells. Each cell can not contain more then one mine. Numbers in the cells show quantity of mines with corresponding colour in the neighbouring cells. In cells with numbers there are no mines. Neighbouring is the cells, which have common side or corner. Answer's format: Write the quantity of red mines in all columns from left to right. For example the answer will be: 1, 1, 1, 1, 2, 1.
Score: 6 points. | |||

8. Numbers around
Fill empty cells with numbers from 1 to 9. Numbers, which surround grey cell, must be different and its sum must be equal to the number in this cell. Answer's format: Write numbers surrounding central cell starting with blue one in clockwise order. For example the answer will be: 9,7,8,5,4,6.
Score: 7 points. | |||

9. Battleships
Put 15 ships (5 ships in every colour: red, green, blue) on the field. Each ship occupies three cells and may be horizontal, vertical or diagonal. Ships with same colour cannot touch each other even diagonally. Numbers outside the field shows how many cells of ships with given colour are in corresponding column (raw). Answer's format: Write the content of third row from top (it's marked) from left to right. Use letter R, G, B for red, green and blue cells and X for empty cells. For example the answer will be: XGBXGX
Score: 7 points. | |||

10. Neighbours
Write numbers from 0 to 8 in some cells of square 8x8. Each number must show how many numbers are in the neighbouring (including diagonal) cells. All numbers in one row or column must be different. Answer's format: First enter the quantity of cells with numbers. Then give content of square row by row. For empty cell use symbol "-". For example the answer will be:
Score: 0.6 points for every number over 20. | |||

11. 1-2-3 way
Choose any cell for start. Then move in one of the six directions on one cell. Then move in one of the six directions on two cells. Then move in one of the six directions on three cells. Repeat moves in one, two, three cells. Way cannot pass one cell twice and cannot pass through grey cell. During one move you cannot turn.
Score: 0.4 points for every move over 35. | |||

12. Increasing filling
Fill the square field with numbers from 0 to 9 in any way. After that, form the sequence of numbers of even length according to the following rules: Take first number from any cell. Take next number from that cell or from neighbouring cell. Neighbouring are the cell with common side.. This sequence must have such property: if we dived it in two-digit numbers then this numbers will follow in increasing order. Answer's format:Write filling of the square, starting cell and then direction of movement (U-up,D-down, R-right, L-left, S-on place). For example the answer will be:
0102, 3050, 2603, 7040: À1, S, S, R, R, R, D, D, D, L, U, U, L, D, D, L, U, S, S, U, D, R, L, D, S, R, L, U, D, S Score: 0.5 points for every two-digit numbers over 15. |