536 Puzzles and Curious Problems

168 Combinatorial & Topological Problems are) until the ten form five straight rows with four ships in every row. How should ...

Map Coloring Puzzles 169 442. THE FOUR-COLOR MAP THEOREM For just about fifty years various mathematicians, including De Morgan, ...

170 Combinatorial & Topological Problems A SWASTIKLAND MAP Here is a puzzle that the reader will probably think he has sol ...

Miscellaneous Combinatorial Puzzles 171 A GENERAL ELECTION In how many different ways maya Parliament of 615 members be electe ...

172 Combinatorial & Topological Problems Being acquainted with the peculiar appetites of the cannibals, the mission- aries c ...

Miscellaneous Combinatorial Puzzles 173 FOOTBALL RESULTS Near the close of a football season a correspondent informed me that ...

174 Combinatorial & Topological Problems 454. THE SIX COTTAGES A circular road, twenty-seven miles long, surrounds a tract o ...

Miscellaneous Combinatorial Puzzles 175 that the counters must always be disposed in a straight line. It will be found an entert ...

176 Combinatorial & Topological Problems you exchange black number 3 with 4, or with 5, or with 6, you get different necklac ...

Miscellaneous Combinatorial Puzzles 177 in paper or cardboard, and color them according to taste, but the order of the colors mu ...

178 Combinatorial & Topological Problems arranged them so that the numbers in the three sides added up alike-that is, to 16. ...

Miscellaneous Combinatorial Puzzles 179 be handcuffed together. It will be seen how they were sent out on Mon- day. Can you arra ...

180 Combinatorial & Topological Problems THE ARCHERY MATCH On a target on which the scoring was 40 for the bull's-eye, and ...

Miscellaneous Combinatorial Puzzles 181 1bree men in a competition had each six shots at a target, and the result is shown in ou ...

182 Combinatorial & Topological Problems as the figures indicate in the diagram. I am allowed to pick up as many bags as I l ...

GAME PUZZLES ...

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Game Puzzles TIC TAC TOE Every child knows how to play this ancient game. You make a square of nine cells, and each of the two ...

186 Game Puzzles TURNING THE DIE This is played with a single die. The first player calls any number he chooses, from I to 6, ...

Game Puzzles 187 there are pretty 3ubtleties in it, and I will show how to win with certainty. Place the five dominoes, 1,2,3,4, ...