# AI News, Artificial Intelligence/Search/Adversarial search/Minimax Search

The minimax search is especially known for its usefulness in calculating the best move in two player games where all the information is available, such as chess or tic tac toe (Muller, 2001).

Theoretically, this search algorithm is based on von Neumann’s minimax theorem which states that in these types of games there is always a set of strategies which leads to both players gaining the same value and that seeing as this is the best possible value one can expect to gain, one should employ this set of strategies (Kulenovic, 2008).

Each level of the tree alternates between player 1’s move, who is trying to maximize her score, and player 2’s move, who is trying to minimize player 1's score in order to undermine her success.

If the level above the terminal nodes represents player 2’s possible moves, then the value of the nodes will be the lowest value among those of their children, the minimum.

Moreover, representing all the possible moves for simple games like tic tac toe is not so difficult but with games like chess, it becomes computationally expensive to represent them all.

Another way of cutting down the search space is to only go to a certain depth, treat the moves at that level as makeshift terminal nodes and determine their values using heuristics.

epl341-minimax-algorithm

Minimax is a decision rule algorithm, which is represented as a game-tree. It has applications in decision theory, game theory , statistics and philosophy.

FIFA 18 Career Mode - How to Increase a player's Potential to 91+ & (Youth Academy Review)

FIFA 18 Potential boosting Tutorial & Youth Academy player review Leave your thoughts in the box.

What is the Alpha Beta algorithm? - Artificial Intelligence

This tutorial explains what Alpha-Beta Pruning is and how it helps reduce the branching factor in a game tree. The technique is extensively used to program ...

HOW TO SIGN PLAYERS CHEAP ON FIFA 18 CAREER MODE! | FIFA 18 TIPS AND TRICKS!

EXPECTATIONS vs REALITY of having a Sibling

So here's our Expectations vs. Reality of having a Sibling! In this video you guys will see the TRUTH of what it's like to have a brother or sister. Let us know if your ...

6. Search: Games, Minimax, and Alpha-Beta

MIT 6.034 Artificial Intelligence, Fall 2010 View the complete course: Instructor: Patrick Winston In this lecture, we consider strategies ..

4. Search: Depth-First, Hill Climbing, Beam

MIT 6.034 Artificial Intelligence, Fall 2010 View the complete course: Instructor: Patrick Winston This lecture covers algorithms for ..

A* (A Star) Search Algorithm - Computerphile

Improving on Dijkstra, A* takes into account the direction of your goal. Dr Mike Pound explains. Correction: At 8min 38secs 'D' should, of course, be 14 not 12.

What Is Minimax Procedure?

We will also take a look at the 31 aug 201716 nov 2010 minimax is procedure used for minimizing possible loss while maximizing potential gain originally ...

FIFA 18 Career Mode Tip - How to Find Player Ratings from Other Teams

In today's FIFA 18 Career Mode Tip video, I will show you the two methods of determining player ratings from other teams without having to search and scout ...