Deduce

Summary

A. DEDUCE is derived from the Eight-Queens Chess problem.

B. Two players compete by alternately placing a QUEEN on a square not in the same row, column, or diagonal of another QUEEN (ie., not being controlled by another QUEEN of either side.)

C. Last player to fill the board, taking the last available square, wins the game.

Rules

1. The winner is the last player that makes a legal move.

2. A legal move is made on a square with completely empty rows, columns, and diagonals.

3. Moves alternate between the first (odd) player and second (even) player.

Match Scoring

Deduce Matches consist of alternating the first game move between the players,
the first player to win six games and ALSO be ahead by a margin of 2 games wins.
(Tennis is scored the same way.)

On this browser game the computer does not allow illegal moves (ie., placing a piece in a row, column, or diagonal that contains an already placed piece), however, in a tournament a player making an illegal move is declared the loser if the other player demonstrates the position is illegal.

Algebraic Notation

a8  b8  c8  d8  e8  f8  g8  h8
a7  b7  c7  d7  e7  f7  g7  h7
a6  b6  c6  d6  e6  f6  g6  h6
a5  b5  c5  d5  e5  f5  g5  h5
a4  b4  c4  d4  e4  f4  g4  h4
a3  b3  c3  d3  e3  f3  g3  h3
a2  b2  c2  d2  e2  f2  g2  h2
a1  b1  c1  d1  e1  f1  g1  h1

Play Tic-Tac-Toe Here (with winning moves function)
Free guide and game tree within Download Book Here