Hot answers tagged

19

Yes, it is possible for neither player to be able to make a move without the board being full. The Wikipedia article for Reversi has this example from a competition: There are also simpler examples where all the pieces are turned to the same colour (YouTube video).


18

I am not speaking as a highly expert player, but rather someone who always wins against people with little or no experience, and against overly simplistic computerized versions. So the approaches I've learned can get you from beginner to intermediate. I'll start with simple stuff first: Corners are vital. Once you get a corner, it will never change color. ...


14

Yes, it is possible. Here is a youtube link showing a game where black fills the entire board: http://www.youtube.com/watch?v=prWG1OFgVqg&t=0m30s (the game starts at 30s)


11

Cluster-borders (or border-lines) is a core concept to win, in my humble opinion, being a decent player: 1. Counter-intuitively, in the beginning of the game, one of the tactics is to take as few pieces as possible. To elaborate on this: in mid game, it's key that you can force the opponent to make bad moves (e.g. giving corners to you). The way to limit the ...


8

No. From the Rules of Play: Each piece played must be laid adjacent to an opponent's piece so that the opponent's piece or a row of opponent's pieces is flanked by the new piece and another piece of the player's colour. All of the opponent's pieces between these two pieces are 'captured' and turned over to match the player's colour. where I have ...


6

I am not a lawyer, and have experience only in Ontario, but under Ontario law wagering on games of skill is not gambling. In a well-known case from the 1960's or early 1970's, in which the St. Clair Bridge Studio was defending itself against charges of running a gambling house, barrister and bridge player Eric Murray in his winning defence argued that bridge ...


5

For the bonus, the shortest possible game that results in all pieces the same colour (9 moves) is here: https://www.youtube.com/watch?v=6ehiWOSp_wk


5

This is very simple. If one corner is empty, but black has both edges and the diagonal, then black can't go in the corner, and neither can white.


4

It actually can be a bad move to avoid the X squares as long as possible. I've seen games where players so pointedly avoided them that the four corners were taken before the first X space was played. If that happens, especially on an already-dense board, the corners lose a lot of advantage because it can be impossible to "riposte" and capture back any spaces ...


4

The permutations of the game makes it hard to come up with one specific strategy. Personally I like to "dance around" the X squares, trying to tease my opponent into placing his pieces there. But always remembering that it should cost him more than it should ever cost me. As a general rule, your objective is to limit the number of liberties (that is, the ...


4

You can play online on Yucata http://www.yucata.de/en/GameInfo/Reversi. Generally the games are played over days rather than "real time" though. Lots of other great games too


4

If you want all the strategy to be simplified into a single sentence, it would be: Maximize mobility, aim for stable disks. Disks are considered stable when they cannot be flipped again. For instance, corners, or filled up edges cannot be flipped. Mobility is the number of different moves, in particular good moves, you have access to. Disks that aren't ...


4

As long as the grid is even, Othello should play just fine, provided you change the staring cluster. . . . . . . B W . . B W B . . . W B . should do, with white moving first...


3

From AI point of view, or at least from a Search-intensive approach, Othello is harder. Checkers has been weakly solved at 2007. Othello has not been solved yet. From the paper Checkers Is Solved: Search-intensive approaches to AI will play an increasingly important role in the evolution of the field. With checkers done, the obvious question is whether ...


3

D3C5D6E3B4C3D2C4F4 which is the same sequence Julia gave, not only answers the bonus question, but actually all questions. The least number for both players to not have an option is the 9 move wipe out, so 13 discs including the starting discs. It also is the answer to the first question, unless you want to say "one player of the two players can't make a ...


3

Othello‘s rule book states in the final sentence “it is possible for a game to end before all 64 squares are fillled”. We just encountered such an edge case. White had the final move, and could not play. Game was called. Black won the game with 34 disks. White has 29.


3

"wipeout" is an example of such an ending, too! It's not something that happens to serious players, but it certainly happens to casual players.


2

Server where many good players play is Kurnik. If you're asking about communities this is a website of federation that organise international tournaments.


2

You can try Turn The Tides (I'm its developer) which has 24 different boards based on the idea of reversi. You also get to use powers and there are another 24 boards with hexagonal tiles as well. You can play offline(against the iphone) or online with real players via GameCenter.


2

It is very hard to say it without browsing all possible combinations. Another question is are you asking about moves in game that make sense or any random game. I was playing this game many years and usually one consider move choosing out of 3 maximally 5 possibilities for good move. However in mid-game there are 10-20 legal moves frequently. You can try ...


1

This game ends with a draw, neither player able to play.


1

There is a fairly famous othello variation called octagon othello. it's basically played on a 10x10 board with the corner regions cut out. .... ...... ........ .......... ....ox.... ....xo.... .......... ........ ...... .... You suddenly not only have 4 corners but 8. The basic game play is still fine (even with the standard start position). ...


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