Houdini Aquarium 2019 & ChessOK Aquarium 2020
Houdini Aquarium 2019 is a new powerful analysis, database and chess publishing tool, powered by the world's strongest chess engine Houdini 6 and 7-piece Lomonosov Tablebases.

Houdini 6 Aquarium 2019 €53.95
ChessOK Aquarium 2020 €35.95

ChessOK.com » Daily Prize Tournaments
In the ChessOK playing zone, several tournaments with prizes are held daily. The whole list is here: Daily Prize Tournaments (GMT everywhere) — 10:00 Team cup: 3 minutes, 3 boards — 12:00 Individual cup for 1-minute play — 15:00 Individual cup for 3 minutes — 17:00 Team cup for 3 minutes, on 5 boards. — 19:00 Individual cup for 1 minute — 22:00 Team&individual cup for 3 minutes. Teams are counted for three best players of the team. — 00:00 Individual night cup for 3 minutes. League tournament (the most popular tournament) Takes place on Wednesdays, at 17.00 GMT, eight matches pro season, the timetable is accepted every time before the season. Saturday/Sunday:— 15.00 GMT, Team cup for 1 minute at 5 boards. Sunday 14:00 Sunday tournament with the year membership as the main prize. The last month’s Saturday 16.00: “ChessOK” Open Championship

Study chess online on Chess King Learn! Time-proven training courses, thousands of examples and exercises.

Start playing right now in your web browser on Chess King Playing Zone! Teams, tournaments, training, analysis and much more!

7-man Lomonosov Tablebases provide deeper-than-ever insight into chess endgame.

Download weekly chess database updates (containing 2000+ games) with latest tournaments and games in PGN and Chess Assistant format.

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