ChessBase - Chess Quiz

Highscores

Rank	Name	Quiz Elo
4350	jonah45	1800
4351	vali100	1800
4352	shalabi	1800
4353	weißbach	1800
4354	John Derhammer	1800
4355	jonathanjml@hotmail.com	1800
4356	saftirik	1800
4357	corint	1800
4358	M-N	1800
4359	MrSandman	1800

last week

Highest Elo gains

dessenne (+109.6)
IMCG (+105.5)
Rafael de Sousa Assis (+34.7)

Most active users

RIDHAM SHAH (75)
Flamer (63)
IMCG (55)

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Petroff Defence Powerbook 2026

The major part of the material on which the Petroff Defence Powerbook 2026 is based comes from the engine room of playchess.com: 357 000 games. This imposing number is supplemented by another 17 000 from Mega and from correspondence chess.

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Petroff Defence Powerbase 2026

Petroff Defence Powerbase 2026 is a database which contains 6475 high class games from Mega 2026 and the Correspondence Database 2026, of which 682 annotated.

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