Page 50 - NUMINO Challenge_C1
P. 50
Problem solving
Key Points
1 Two players take turns moving marbles. A marble Use the principles of
can be moved one or two spaces per turn, and the symmetry.
player who can no longer move the marbles loses.
The white marble can only be moved to the right.
The black marble can only be moved to the left.
The marbles cannot be placed in the same space
or pass through another marble. What strategy
must a player use in order to always win?
2 Two players take turns taking marbles from the Think about how
dishes according to the rules below. In order to many marbles need
win the game, how many marbles should a to remain in the dish
player take on the first turn? in order to win.
Rules
1. Two players take turns taking one, two, or three
marbles from one dish per turn.
2. The player who takes the last marble wins.
AB
Puzzles 47
Key Points
1 Two players take turns moving marbles. A marble Use the principles of
can be moved one or two spaces per turn, and the symmetry.
player who can no longer move the marbles loses.
The white marble can only be moved to the right.
The black marble can only be moved to the left.
The marbles cannot be placed in the same space
or pass through another marble. What strategy
must a player use in order to always win?
2 Two players take turns taking marbles from the Think about how
dishes according to the rules below. In order to many marbles need
win the game, how many marbles should a to remain in the dish
player take on the first turn? in order to win.
Rules
1. Two players take turns taking one, two, or three
marbles from one dish per turn.
2. The player who takes the last marble wins.
AB
Puzzles 47
