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probname); ?>
Topic Classification: nid, "Topic Classification"); ?> Tags: nid, "Problem Tag");?>
Topics: nid, "Topics"); ?> Prerequisites: nid, "Prerequisites"); ?>
Supplies: nid, "Supplies"); ?> Pedagogy: nid, "Pedagogy"); ?>
Grade Vs Difficulty:
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Solution: nid, "Solution"); ?>
Problem

Will the first or second player win on the left-hand game board? Explain why any game on this board always lasts for the same number of moves.

Criss Cross: Players alternate turns drawing a single straight line segment joining any two points, as long as the segment does not pass through any other points or segments already appearing on the game board. The winner is the last player able to make a legal move.

Details
Source Title: Circle in a Box
Source Author: Sam Vandervelde
Source URL: http://www.mathcircles.org/node/65
AttachmentSize
Criss-CrossBoards.jpg33.46 KB
Authors
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References
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Problem Sets This Problem Belongs to:
parent_nid; ?> Set:
VARIABLES
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DEFINITIONS
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