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Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Arkon: Chess Opening Explorer Screenshots

iPad

iPhone

About Arkon: Chess Opening Explorer

Build an opening repertoire with uncharted variations using the power of the strongest chess engine and the wisdom of chess grandmasters

FEATURES

- Offline implementation — Arkon does not use cellular data

- Moves scored by powerful Stockfish chess engine in centipawns (cp)

- Move popularity from Chess Grand Master games (ELO 2600+)

- Game PGN chess position display and export via email

- Opening Lines from Encyclopedia of Chess Openings (ECO)

SUPPLEMENTAL CONTENT

Arkon is free to download and use. However, should you desire to explore chess openings beyond the first 20 positions, you can unlock a full version as follows:

3-Month Unlimited Moves: USD 0.99

1-Year Unlimited Moves: USD 2.99

Lifetime Unlimited Moves: USD 8.99

All of these purchase items have unrestricted access to explore openings regardless of move depth

What's New in the Latest Version 3.0.3

Last updated on Dec 15, 2018

Old Versions

- minor updates & bug fixes

Version History

3.0.3

Dec 15, 2018

- minor updates & bug fixes

3.0.2

Dec 6, 2018

- transition to Avniel Apps LLC
- minor enhancements and bug fixes

3.0.1

Nov 19, 2018

- minor bug fixes, enhancements
- updated copy

3.0

Nov 8, 2018

- more accurate engine performance
- bug fixes, general improvements

2.12

Sep 24, 2018

- fixed bug with feedback module

2.11

Sep 22, 2018

- fixed score centipawn sorting bug for black

2.10

Sep 19, 2018

- engine performance improvements
- certified release for iOS 12

2.9

Aug 18, 2018

- fixed scrolling UI issue with iOS 11
- minor bug fixes
- minor performance improvements

2.8

Jan 31, 2018

Bug fixes (crashes)

2.7

Oct 27, 2017

bug fixes and support for iOS 11

2.6

Sep 23, 2017

- score sign/sorting bug fixes
- engine accuracy improvements

2.5

Sep 7, 2017

- board flip feature
- bug fixes

2.4

May 20, 2017

- bug fixes (including phantom pieces)

2.3

May 2, 2017

- GM stats updated for 2017
- Stockfish engine enhancements
- Numerous bug fixes including launch freezes and blank ECO

2.2

Mar 14, 2017

- Opening Lines from Encyclopedia of Chess Openings (ECO)
- Faster, snappier user interface
- Explorer completely until checkmate

2.1

Feb 18, 2017

- Emergency fix resolving blank board bug for iPhone 4s

2.0

Feb 6, 2017

- Name changed to Arkon
- New Help section tutorial
- New PGN display and email feature
- Significant engine speed improvements
- Significant UI enhancements
- Significant bug fixes

1.2

Apr 28, 2016

- slightly shortened engine processing time
- removed mistaken gamecenter support
- streamlined feedback
- 1-week trial removed
- bug fixes

1.1

Apr 14, 2016

- pricing changes
- feedback options
- new support page

1.0

Mar 9, 2016

Feedback Report