Enigma 1345: Score? Date?
21 February 2014
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From New Scientist #2504, 18th June 2005
The football teams Ark, Bat, Cat and Dog played each other once in the period January to March. Each match started at 3:00pm and no team played two games on consecutive days. In the evening of each match day the local paper printed a chart which gave the scores of all matches played so far and the dates of all matches still to be played. Below is one of the charts produced during the season.
As an example of the meaning, the top left entry is A4-B1 or 4 January. The paper used different coloured print to distinguish between scores and dates but I forgot to record the colours. However I can tell you that at the end of the season, with 3 points for a win and 1 for a draw, one team’s total points was 5 and the sum of the four totals was odd.
For which matches were the entries actually scores?