Chess Openings Wizard – Program Versions

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Last Report:  June 25, 2020

“Before you read the bug report…”

Chess Openings Wizard is constantly under development to stay current with new engines, best practices, new versions of Windows, Macintosh, iPad, and Android, and the ideas from those who use it every day.

That said, it is risky to make the bug list available to the public. The vast majority of software publishers keep their bug list private so as not to discourage new purchases who might assume that the software has too many problems because everything known about the program is in this list.

Rest assured, Chess Openings Wizard is used by more than 60,000 chess players.

I publish our bug list because:

I personally appreciate it when a software maker tells me about any known problems for programs that I want to purchase.

I think chess players are smart enough to realize that all sophisticated software has bugs, and that listing them publicly is my way of making sure you know it’s being worked on.


Mike Leahy, The Database Man!

The most recent builds of Professional and Express contain these changes:

  1. When you purchase a new program, your permanent product key will be emailed immediately.
  2. You can install your product key on up to three of your computers. (Please don’t share your key.)
  3. The registration system does not require a connection to the internet.
  4. You can log in and get the latest download links and your product keys any time.

There are currently no trial versions of Chess Openings Wizard.

Here are the top ten reasons to upgrade.

Chess Openings Wizard Program Latest Build Released
Professional 2016 Windows Build 113 January 14, 2020
Professional 2016 Macintosh Build 104 July 23, 2019
Express 2016 Macintosh Build 107 July 23, 2019
Express 2016 Windows Build 93 February 8, 2019
iPad and iPhone Build 50 January 20, 2020
Android Build 48 January 4 , 2020
COW Engine Server for Windows Build 8 November 12, 2018
COW Engine Server for Macintosh Build 9 November 19, 2018

Changes in build 113

The program now checks to see if there is an update available.

Backsolving fixes a bug when a line is added with a blank Informant rate.

Changes in build 112

Diagram can have algebraic hints in the frame.

Backsolving fixes a bug when the only candidate’s Informant rate symbol is blank and the setting to ignore blank rates is checked.

A check box option to ignore blank rates was added to the program settings (for real time backsolving).

Bug fixed that did not allow the first move of a named position (from tactics or endgame puzzles) to be added to a speed learning set.

Backsolved rate and numeric assessment are instantly updated when program settings are changed (to ignore blank rates for example).

Build 112 looks for the settings from build 92 and uses them if it can, saving the headache of starting over with default settings.

Changes in build 104, 107

Support for MacOS Catalina was added.

Changes in build 91, 93, 94, 95

Dropbox support has been added. Choose Dropbox… from the File menu. Click the help button in the Dropbox window for more information.

New sample ebooks are included.

Stockfish 10 64bit is the new default engine.

$GAME$ error fixed when opening ebooks by clicking on them. (Windows)

Fixes “top candidate only” bug seen in some Windows 10 machines. (Windows)

Changes in build 87, 88

The MacOS Mojave issue is fixed. (The popup to edit candidate moves would disappear.)

New sample ebooks are included.

Stockfish 10 is the new default chess engine.

Changes in build 80 and 81

For Macintosh, the DMG file delivering the app is now “signed” and the app no longer stores the product key inside the app which should make Apple’s new version of

Gatekeeper happy. Gatekeeper in some cases would quarantine the Chess Openings Wizard app causing it to fail to open the Pedigree and ECO code databases.

A shortcut key of Control-Option-R on Macintosh and Ctrl-Alt-R on Windows will allow an ebook to be reset to its default settings and sizes. This is helpful if an ebook opens but is completely off the screen due to removing an extra monitor.

Changes in build 69, 75

The diagram settings are correctly saved.

A new option to remove the diagram’s frame was added.

Added arrows to show the last move made (optional).

Fixed issues with garbled diagrams when opening new windows on Windows 10 (certain graphics drivers).

Changes in build 67, 68

The size of the candidate moves can be adjusted.

The Pedigree ribbon is oriented sideways so that it is easier to compare different candidates.

The diagram prompts for underpromotions when moving a pawn to the eighth rank.

The correct promotion piece is drawn when clicking a candidate move that promotes a piece.

The program is smarter about saving the state of windows, including moving an ebook to and from  Windows/Macintosh and to and from computers that have multiple monitors.

More shortcut keys have been added to the menus. (Leif W, Stephen K)

Speed Learning was added. (YouTube video here)

Bug with board names longer than 41 characters fixed.

The selected square no longer stays selected when dragging a piece.

The maximums for nodes in EPD analysis to 2,000 (which is in millions of nodes) and 1,000,000 for seconds. (suggested by Bogg)

Changes in prior versions Resolution Spotter Pro
Font size of comments can be adjusted. Changed in build 60, 70 PE
More shortcut keys have been added. Added in build 62 P
Speed learning added Added in build 62 Pro P
Mac and Windows default to high speed piece movement. Changed in build 62 and beyond PE
Piece speed and diagram type (square color, font, etc) can be adjusted. Changed in build 60 P


Description Resolution Spotter OS Pro
Impact Projection
Engine server continues analyzing after Android disconnects, using 100% CPU Fixed in build 8. Rafa M. Windows Engine Server high Fixed in build 8
PGN import slows, increases memory usage researching Navid M. Mac Pro high
Make Paste PGN behave like importing PGN could not duplicate Ilyas A. Windows PE high Not an issue
Error message and possible crash with Mac High Sierra – Use the Candidate menu instead of the dropdown Fixed in build 86. Timothy R. Mac PE high Fixed
Double clicking a document when the program is running causes two copies of the program and $GAME$ Assertion error Bug Phil T. Win PE high Fixed in Pro build 91 and beyond
Backsolving a position with a blank rate when “Ignore blank rate symbols” is checked gives the wrong Informant symbol. Bug Bernd H. Win P high Fixed in build 111.
‘G’ indicator of loaded game not working Bug Tom R. Win/Mac PE high
Setting up an illegal position (without a king) causes a crash Bug Hud D. Win/Mac PE high
Under-promotions not working Fixed in build 86. Mike Win E high Fixed
Pasting engine analysis needs a carriage return after it Bug Ron T. Win/Mac PE low Fixed
Add Informant synching from legacy version Bug Ron T. Win P high
Make move order searches like legacy version Bug Elirub Win/Mac PE high
Diagram is distorted when first opening an ebook Bug – not yet reproduced Mike B, Raimund K. Win P, E high  Fixed
Importing games with no result gives incorrect backsolved Informant rates Bug sagisag Win P high Fixed in build 111.
Selecting speed learning positions causes multiple confirmation windows. Bug – duplicated with customer data Hud D. Win/Mac P high
Mac Stockfish 7 crashes Stockfish 10 replaced earlier versions. Celestino J. Mac P, E high Fixed in build 91
cannot create a swap chain for ‘TCanvasD2D’ Bug – not yet reproduced, likely a graphics driver problem Daniel G. Win E low Assumed graphics driver issue
Crashes when candidate drop down button is clicked Bug – not yet reproduced Jon G. A. Mac E high Fixed
UNIQUE constraint error when adding duplicate positions to speed learning Bug Mike at Bookup Mac/Win P low
Mac Finder won’t open the app when a document is double clicked Limitation – the documents must be opened from within the app Jacques P. Mac P, E low
Backsolving freezes on start with sample data (Polar Bear ebook) Bug Eric O. P high
Find games with this move order – doesn’t fill in moves Bug – move order has to be entered manually Eliezer R. P high
Mac version beeps when pressing right arrow key for moves Bug Jacques P. P high
Does not use MasterChess 8000 files. Design decision – workaround is to export all games to PGN. A new version of MasterChess will likely be the ultimate answer. P low
The candidate area can lose focus and won’t react to arrow key navigation when this happens. Bug. Jacques P. P medium
Only the top candidate move is played when clicking on other candidate moves. Windows 10 Cannot be duplicated. Geoffrey B. Colin P.
David M.
Lazaro M.
 Windows 10 P high Fixed in build 91
The splitter bar below the past moves pane also moves the top splitter bar. Bug. Stan R. P low
Window menu is not populated. Harish S.
Creating a Speed Learning set with named positions causes a dialog window to appear for each name. Hud D P Fixed in build 111.


Description Sponsor Importance Projection
Add sounds effects for pieces moving Ernesto D. Low
Add auto update using Inno Setup’s /SP- /silent /noicons “/dir=expand:{pf}\My Program” Mike L. Low
Have engine pause when EPD analysis finishes Hud D. Low
Add magic hand to training mode Mike L. Low
Add the C.A.P. databank (aka “Joy of Chess”) Steven K. Low
Add algebraic hints to the borders of diagrams Adolfo P. P. Clive D. Mike W. Low Done
Add 3D chess board Ron T. Low
Allow arrow keys to play moves Mike W. Low
Have the Enter key handle OK buttons. Jacques P. Low
Add the ECO printing function Gerald G Low
Add move guessing to the diagram (clicking on ‘to’ square) as in ChessBase. Jacques P.
Add a way to play a game against the engine from any position. Jeremy
Have EPD engine analysis ignore nodes when set to zero. Bogg Low
Add option to Backsolving to ignore blank numeric assessments Bogg Low
Add Speed Testing Jim G High
Add Pro function to export lines as individual games (as in legacy) Bolvar G
Valet W
Add candidate font size adjustment to Express Mac version (Windows done) Serge D, Tom R High Done
Fix Find Games with this move order (Express version) Tom R High
Add command to synchronize Informant symbols based on numeric assessments (Pro version) sagisag Medium
Add command to Show All Move Orders (Pro and Express versions) Amoranemix Medium
Program will run two instances, creating error messages for the shared $GAME$ database. Sandy S. Medium Fixed in build 91
Program has to be killed with task manager if it cannot open an ebook from the last session. Randy M Medium
Add ability to select multiple PGN files for import Steve S Medium
Add arrows and square highlights Mike L. Low