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Information
Apple ID1496131224
Bundle IDmike.pearl.chess
SellerSeller
Min iOS9.0
Device familiesmac, iphone, ipad, ipod
Released2020-02-28
Copyright© 2020-2025 Michael Adams
Privacy policyLink ↗
Preview 3 platforms
iPhone 9 images
iPad 8 images
Mac 5 images
What’s New Version 2.20
Increased explorer opening book database by 295k games
Description
Play chess online at FICS, the worlds oldest chess serve, play the Pulsar Engine on or offline with chess and variants like Chess960 with levels, and use the Explorer with an opening tree book based on 640k over the board games and analysis which also works offline. There is In-App help. For online play, if no account, use the Connect as Guest button to play unrated. FICS accounts are life time free accounts. Diamond supports Dark Mode and has no ads.
The On-Board program with difficulty levels available on and offline plays Chess, Chess960, and variants such as Crazyhouse, Losers and Atomic.
The Explorer Tab which works offline or online with certain restrictions while playing, offers an Opening Tree based on 640K over the board games were both players are rated over 2300. The move table view can be toggled to show analysis and PGN games including the players log file can be loaded. Openings are named after a few moves are made. There are 10 PGN game collections available in app that include Morphy 1858, Fischer’s best games, a Capablanca and Kasparov collection, and a range of game collections from classical too modern to be viewed with the opening book and analysis, on and offline.
Guests can play on FICS unrated, and watch games. FICS is the original Free Internet Chess Server, and a sign up link is given in the console when connecting to both servers as a guest as a resource if a user wants to play rated or chat. Guests and members can use the Training tab of Find a Game Board Option.
The Diamond board features engine analysis with one click when observing a game or examining one, such as when going to Actions - Examine last game. There is also has a Load PGN option which includes some grandmaster game collections that can be opened on FICS board as well as in Explorer. Diamond saves all played games. Multiple games can be up at once, with navigation through the next and previous buttons.
Diamond has chess and the server's variants such as Chess960, a form of shuffle chess known as wild fr on FICS, Crazyhouse, Losers, Atomic, and Giveaway or Suicide. Guests can play any unrated game type.
Diamond Chess has an accessible board to use with Voice Over for the visually impaired. With voice over on, if a user taps a square it will speak its contents such as "e4 empty" or "e4 white pawn" and there is a speak move with Voice Over on.
Members on FICS can join channels and chat with players online in the Diamond's Main View by tapping the Channels button. In Shouts on FICS there is also blikII, an AI bot who responds to his name. His last response to me was "blikII(TD) shouts: I appoint you ambassador to Fantasy Island!!!". The in-app help in this view has more tips on how to chat including a guide on which channels chat more.
FICS, the Free Internet Chess Server, is entirely free.
Accessibility
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Version history 25 versions
Build 877666130v2.202025-08-29 17:36:12
Increased explorer opening book database by 295k games
Build 877124391v2.102025-08-11 15:03:55
The on-board engine, Pulsar Chess, now writes the log of chess games in standard PGN format to be open by more apps if exported
Build 868792664v2.032024-09-06 12:04:20
Removed the ICC connection option now that ICC has moved to a new format and no longer supports third party clients.
Build 865746482v2.022024-05-07 18:11:59
Fix for threading issue with move animation that could cause flickering on some devices
Build 865697600v2.002024-05-05 21:10:48
Added move animation with option to turn this off in settings
New Icon
Build 865698135v2.012024-05-05 22:36:47
Fix for bug in new animate moves feature that it was not saving the value for that setting between runs of app.
Build 859397043v1.802023-08-26 12:00:22
New layout for Opening Explorer on iPhone
Added cancel option to Explorer's Actions Menu
Build 854129406v1.762022-12-30 00:00:07
Fix so Explorer view does not run over tabs on bottom
Build 846647434v1.752022-01-16 00:48:43
Added Training Tab to Find a Game board option in place of poolbot with puzzle and endgame positions to train against and solve
Build 844231945v1.722021-09-22 00:00:23
Fix for crash introduced when playing on-board engine
Build 844075744v1.712021-09-13 08:25:17
Fix for Explore Tab menu on clicking actions not showing on iPhone
iPhone can now flip upside down
Updated in-app help on game collections
Build 844067207v1.702021-09-11 14:01:21
Tab three now features an Opening Explorer based on 350K over the board games with both players over 2300 as well as engine analysis to flip to from book view.
Build 843932333v1.692021-09-03 20:29:17
Change to help messages on login to ICC as a guest
Build 843891245v1.682021-09-02 17:44:23
if retract move is used in an on-board engine game after move two, the game listing in log file will say unrated.
Fix so Find a Game - Seek Game has all options fitting on one screen on most devices without scrolling
Build 843713532v1.672021-08-21 19:24:57
fix for issue that seek graph data was not correctly updated after playing or examining on FICS
On FICS now issues command unexamine if user is examining a game and goes to open Board Options - Find a Game or Seek Graph since users can't use these while examining
Build 842999675v1.662021-08-15 12:37:41
On-Board Engine option moved to top of Connect tab, the tab that shows on App launch, for quicker access
Build 842952006v1.652021-07-07 22:40:58
In App Help with a Help button on board and another on Main View
Now a sound for game end on FICS. there was one on ICC.
Settings re-organized
On ICC for members tab three becomes Videos to watch ICC Videos
Tournaments Options on Board for ICC Members
Fixed bug in saving the use formula setting of seeking a game view
Build 842760980v1.602021-06-24 18:23:21
Separate Seek Graph option on board
Custom FICS server option
Seek a Game view will now persist data between app launches
Hardboard keyboard now works with diamond again fixing bug.
Additional Voice over support with the Hardboard keyboard for commands typed in the console documented in Voice Over Help in Settings tab
Safe chat features implemented with block and report and lock chat option in settings as well as clear chat.
Options to allow game console to show more chat types from main console in settings
Build 839380250v1.562020-11-28 19:54:49
New Name
Bug fixes
Build 836909593v1.552020-07-19 16:56:10
Option to view one channel in console
can rotate through recent commands by swiping left and right on console
An option to set a custom color for the board squares
Build 836451069v1.502020-06-20 08:48:35
Fix for bugs in scroll back at end of a played game
Last move highlight will highlight castle moves
Option to add a channel to board console on iPad
Build 836034880v1.422020-05-21 12:07:17
Fixed bug in play the computer were if user flipped device ( possible on iPad) the view was not updating the layout
when playing the computer chess960 games fixed bug that if computer view was closed and opened it reshuffled the board mid game but kept moves
Build 835608677v1.412020-04-20 10:07:51
Fix for crash on FICS on console long press menu for actions like profile on a name
Build 835577641v1.402020-04-19 23:44:33
Play a chess engine option on board available off and online
Main view, console area, better supports dark mode
Build 835405908v1.322020-04-06 15:57:25
Black Board Background option in settings to better support Dark Mode
Tap Tap move is now default on both iPad and iPhone not Drag Move
Some tappable labels in settings made clearer they are buttons by making the text blue
PreMove now translated same in English Spanish and French, as "PreMove"
Fixes to Previous game button logic to match next game's order
No pricing data captured yet — comparisons appear once the app has paid storefronts or in-app purchases.
Availability 124 of 175 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
US | en-US | Free | 5 | 5.0 | 2.20 |
AT | de-DE | Free | 1 | 5.0 | 2.20 |
AU | en-AU | Free | 1 | 5.0 | 2.20 |
DE | de-DE | Free | 1 | 1.0 | 2.20 |
EC | es-MX | Free | 1 | 5.0 | 2.20 |
IT | it | Free | 1 | 5.0 | 2.20 |
JO | en-GB | Free | 1 | 1.0 | 2.20 |
MX | es-MX | Free | 1 | 4.0 | 2.20 |
UA | en-GB | Free | 1 | 1.0 | 2.20 |
AE | en-GB | Free | 0 | — | 2.20 |
AF | en-GB | Free | 0 | — | 2.20 |
AG | en-GB | Free | 0 | — | 2.20 |
AI | en-GB | Free | 0 | — | 2.20 |
AL | en-GB | Free | 0 | — | 2.20 |
AM | en-GB | Free | 0 | — | 2.20 |
AR | es-MX | Free | 0 | — | 2.20 |
AZ | en-GB | Free | 0 | — | 2.20 |
BA | en-GB | Free | 0 | — | 2.20 |
BB | en-GB | Free | 0 | — | 2.20 |
BE | en-GB | Free | 0 | — | 2.20 |
BG | en-GB | Free | 0 | — | 2.20 |
BH | en-GB | Free | 0 | — | 2.20 |
BM | en-GB | Free | 0 | — | 2.20 |
BO | es-MX | Free | 0 | — | 2.20 |
BR | pt-BR | Free | 0 | — | 2.20 |
BS | en-GB | Free | 0 | — | 2.20 |
BY | en-GB | Free | 0 | — | 2.20 |
BZ | en-GB | Free | 0 | — | 2.20 |
CA | en-CA | Free | 0 | — | 2.20 |
CH | de-CH | Free | 0 | — | 2.20 |
CL | es-MX | Free | 0 | — | 2.20 |
CO | es-MX | Free | 0 | — | 2.20 |
CR | es-MX | Free | 0 | — | 2.20 |
CY | en-GB | Free | 0 | — | 2.20 |
CZ | en-GB | Free | 0 | — | 2.20 |
DK | en-GB | Free | 0 | — | 2.20 |
DM | en-GB | Free | 0 | — | 2.20 |
DO | es-MX | Free | 0 | — | 2.20 |
DZ | en-GB | Free | 0 | — | 2.20 |
EE | en-GB | Free | 0 | — | 2.20 |
EG | en-GB | Free | 0 | — | 2.20 |
ES | es-ES | Free | 0 | — | 2.20 |
FI | en-GB | Free | 0 | — | 2.20 |
FR | fr-FR | Free | 0 | — | 2.20 |
GB | en-GB | Free | 0 | — | 2.20 |
GD | en-GB | Free | 0 | — | 2.20 |
GE | en-GB | Free | 0 | — | 2.20 |
GM | en-GB | Free | 0 | — | 2.20 |
GR | en-GB | Free | 0 | — | 2.20 |
GT | es-MX | Free | 0 | — | 2.20 |
GW | en-GB | Free | 0 | — | 2.20 |
GY | en-GB | Free | 0 | — | 2.20 |
HN | es-MX | Free | 0 | — | 2.20 |
HR | en-GB | Free | 0 | — | 2.20 |
HU | en-GB | Free | 0 | — | 2.20 |
ID | en-GB | Free | 0 | — | 2.20 |
IE | en-GB | Free | 0 | — | 2.20 |
IL | en-GB | Free | 0 | — | 2.20 |
IN | en-GB | Free | 0 | — | 2.20 |
IQ | en-GB | Free | 0 | — | 2.20 |
IS | en-GB | Free | 0 | — | 2.20 |
JM | en-GB | Free | 0 | — | 2.20 |
JP | ja | Free | 0 | — | 2.20 |
KN | en-GB | Free | 0 | — | 2.20 |
KW | en-GB | Free | 0 | — | 2.20 |
KY | en-GB | Free | 0 | — | 2.20 |
LB | en-GB | Free | 0 | — | 2.20 |
LC | en-GB | Free | 0 | — | 2.20 |
LR | en-GB | Free | 0 | — | 2.20 |
LT | en-GB | Free | 0 | — | 2.20 |
LU | en-GB | Free | 0 | — | 2.20 |
LV | en-GB | Free | 0 | — | 2.20 |
LY | en-GB | Free | 0 | — | 2.20 |
MA | en-GB | Free | 0 | — | 2.20 |
MD | en-GB | Free | 0 | — | 2.20 |
ME | en-GB | Free | 0 | — | 2.20 |
MG | en-GB | Free | 0 | — | 2.20 |
MK | en-GB | Free | 0 | — | 2.20 |
MR | en-GB | Free | 0 | — | 2.20 |
MS | en-GB | Free | 0 | — | 2.20 |
MT | en-GB | Free | 0 | — | 2.20 |
MW | en-GB | Free | 0 | — | 2.20 |
MY | en-GB | Free | 0 | — | 2.20 |
NI | es-MX | Free | 0 | — | 2.20 |
NL | nl | Free | 0 | — | 2.20 |
NO | en-GB | Free | 0 | — | 2.20 |
NZ | en-AU | Free | 0 | — | 2.20 |
OM | en-GB | Free | 0 | — | 2.20 |
PA | es-MX | Free | 0 | — | 2.20 |
PE | es-MX | Free | 0 | — | 2.20 |
PH | en-GB | Free | 0 | — | 2.20 |
PK | en-GB | Free | 0 | — | 2.20 |
PL | en-GB | Free | 0 | — | 2.20 |
PT | pt-PT | Free | 0 | — | 2.20 |
PY | es-MX | Free | 0 | — | 2.20 |
QA | en-GB | Free | 0 | — | 2.20 |
RO | en-GB | Free | 0 | — | 2.20 |
RS | en-GB | Free | 0 | — | 2.20 |
RU | ru | Free | 0 | — | 2.20 |
RW | en-GB | Free | 0 | — | 2.20 |
SA | en-GB | Free | 0 | — | 2.20 |
SC | en-GB | Free | 0 | — | 2.20 |
SE | sv | Free | 0 | — | 2.20 |
SI | en-GB | Free | 0 | — | 2.20 |
SK | en-GB | Free | 0 | — | 2.20 |
SL | en-GB | Free | 0 | — | 2.20 |
SR | en-GB | Free | 0 | — | 2.20 |
ST | en-GB | Free | 0 | — | 2.20 |
SV | es-MX | Free | 0 | — | 2.20 |
SZ | en-GB | Free | 0 | — | 2.20 |
TC | en-GB | Free | 0 | — | 2.20 |
TH | en-GB | Free | 0 | — | 2.20 |
TN | en-GB | Free | 0 | — | 2.20 |
TR | en-GB | Free | 0 | — | 2.20 |
TT | en-GB | Free | 0 | — | 2.20 |
TW | zh-Hant-TW | Free | 0 | — | 2.20 |
UY | en-GB | Free | 0 | — | 2.20 |
VC | en-GB | Free | 0 | — | 2.20 |
VE | es-MX | Free | 0 | — | 2.20 |
VG | en-GB | Free | 0 | — | 2.20 |
VN | en-GB | Free | 0 | — | 2.20 |
XK | en-GB | Free | 0 | — | 2.20 |
YE | en-GB | Free | 0 | — | 2.20 |
ZA | en-GB | Free | 0 | — | 2.20 |
Not available in: AO, BF, BJ, BW, CD, CG, CI, CM, CV, GA, GH, KE, ML, MU, MZ, NA, NE, NG, SN, TD, TZ, UG, ZM, ZW, BN, BT, CN, FJ, FM, HK, KG, KH, KR, KZ, LA, LK, MM, MN, MO, MV, NP, NR, PG, PW, SB, SG, TJ, TM, TO, UZ, VU
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✎
releaseNotes updated
Increased explorer opening book database by 295k games
✎
description updated
Play chess online at FICS, the worlds oldest chess serve, play the Pulsar Engine on or offline with chess and variants like Chess960 with levels, and use the Ex
✎
subtitle updated
Online or Computer Play
✎
name updated
Diamond Chess Online
◆
Version 2.20 released
Increased explorer opening book database by 295k games
◆
Version 2.10 released
The on-board engine, Pulsar Chess, now writes the log of chess games in standard PGN format to be open by more apps if exported
◆
Version 2.03 released
Removed the ICC connection option now that ICC has moved to a new format and no longer supports third party clients.
◆
Version 2.02 released
Fix for threading issue with move animation that could cause flickering on some devices
◆
Version 2.01 released
Fix for bug in new animate moves feature that it was not saving the value for that setting between runs of app.
◆
Version 2.00 released
Added move animation with option to turn this off in settings
New Icon
◆
Version 1.80 released
New layout for Opening Explorer on iPhone
Added cancel option to Explorer's Actions Menu
◆
Version 1.76 released
Fix so Explorer view does not run over tabs on bottom
◆
Version 1.75 released
Added Training Tab to Find a Game board option in place of poolbot with puzzle and endgame positions to train against and solve
◆
Version 1.72 released
Fix for crash introduced when playing on-board engine
◆
Version 1.71 released
Fix for Explore Tab menu on clicking actions not showing on iPhone
iPhone can now flip upside down
Updated in-app help on game collections
◆
Version 1.70 released
Tab three now features an Opening Explorer based on 350K over the board games with both players over 2300 as well as engine analysis to flip to from book view.
◆
Version 1.69 released
Change to help messages on login to ICC as a guest
◆
Version 1.68 released
if retract move is used in an on-board engine game after move two, the game listing in log file will say unrated.
Fix so Find a Game - Seek Game has all options fitting on one screen on most devices without scrolling
◆
Version 1.67 released
fix for issue that seek graph data was not correctly updated after playing or examining on FICS
On FICS now issues command unexamine if user is examining a game and goes to open Board Options - Find a Game or Seek Graph since users can't us
◆
Version 1.66 released
On-Board Engine option moved to top of Connect tab, the tab that shows on App launch, for quicker access
◆
Version 1.65 released
In App Help with a Help button on board and another on Main View
Now a sound for game end on FICS. there was one on ICC.
Settings re-organized
On ICC for members tab three becomes Videos to watch ICC Videos
Tournaments Options on Board for
◆
Version 1.60 released
Separate Seek Graph option on board
Custom FICS server option
Seek a Game view will now persist data between app launches
Hardboard keyboard now works with diamond again fixing bug.
Additional Voice over support with the Hardboard keyboard
◆
Version 1.56 released
New Name
Bug fixes
◆
Version 1.55 released
Option to view one channel in console
can rotate through recent commands by swiping left and right on console
An option to set a custom color for the board squares
◆
Version 1.50 released
Fix for bugs in scroll back at end of a played game
Last move highlight will highlight castle moves
Option to add a channel to board console on iPad
◆
Version 1.42 released
Fixed bug in play the computer were if user flipped device ( possible on iPad) the view was not updating the layout
when playing the computer chess960 games fixed bug that if computer view was closed and opened it reshuffled the board mid g
◆
Version 1.41 released
Fix for crash on FICS on console long press menu for actions like profile on a name
◆
Version 1.40 released
Play a chess engine option on board available off and online
Main view, console area, better supports dark mode
◆
Version 1.32 released
Black Board Background option in settings to better support Dark Mode
Tap Tap move is now default on both iPad and iPhone not Drag Move
Some tappable labels in settings made clearer they are buttons by making the text blue
PreMove now trans
ATde-DE
AUen-AU
DEde-DE
ECes-MX
ITit
JOen-GB
MXes-MX
UAen-GB
AEen-GB
AFen-GB
AGen-GB
AIen-GB
ALen-GB
AMen-GB
ARes-MX
AZen-GB
BAen-GB
BBen-GB
BEen-GB
BGen-GB
BHen-GB
BMen-GB
BOes-MX
BRpt-BR
BSen-GB
BYen-GB
BZen-GB
CAen-CA
CHde-CH
CLes-MX
COes-MX
CRes-MX
CYen-GB
CZen-GB
DKen-GB
DMen-GB
DOes-MX
DZen-GB
EEen-GB
EGen-GB
ESes-ES
FIen-GB
FRfr-FR
GBen-GB
GDen-GB
GEen-GB
GMen-GB
GRen-GB
GTes-MX
GWen-GB
GYen-GB
HNes-MX
HRen-GB
HUen-GB
IDen-GB
IEen-GB
ILen-GB
INen-GB
IQen-GB
ISen-GB
JMen-GB
JPja
KNen-GB
KWen-GB
KYen-GB
LBen-GB
LCen-GB
LRen-GB
LTen-GB
LUen-GB
LVen-GB
LYen-GB
MAen-GB
MDen-GB
MEen-GB
MGen-GB
MKen-GB
MRen-GB
MSen-GB
MTen-GB
MWen-GB
MYen-GB
NIes-MX
NLnl
NOen-GB
NZen-AU
OMen-GB
PAes-MX
PEes-MX
PHen-GB
PKen-GB
PLen-GB
PTpt-PT
PYes-MX
QAen-GB
ROen-GB
RSen-GB
RUru
RWen-GB
SAen-GB
SCen-GB
SEsv
SIen-GB
SKen-GB
SLen-GB
SRen-GB
STen-GB
SVes-MX
SZen-GB
TCen-GB
THen-GB
TNen-GB
TRen-GB
TTen-GB
TWzh-Hant-TW
UYen-GB
VCen-GB
VEes-MX
VGen-GB
VNen-GB
XKen-GB
YEen-GB
ZAen-GB
AONot Available
BFNot Available
BJNot Available
BWNot Available
CDNot Available
CGNot Available
CINot Available
CMNot Available
CVNot Available
GANot Available
GHNot Available
KENot Available
MLNot Available
MUNot Available
MZNot Available
NANot Available
NENot Available
NGNot Available
SNNot Available
TDNot Available
TZNot Available
UGNot Available
ZMNot Available
ZWNot Available
BNNot Available
BTNot Available
CNNot Available
FJNot Available
FMNot Available
HKNot Available
KGNot Available
KHNot Available
KRNot Available
KZNot Available
LANot Available
LKNot Available
MMNot Available
MNNot Available
MONot Available
MVNot Available
NPNot Available
NRNot Available
PGNot Available
PWNot Available
SBNot Available
SGNot Available
TJNot Available
TMNot Available
TONot Available
UZNot Available
VUNot Available