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The Last composer of Rebetico songs, Nikos Pergialis (28.02.1931 - 04.12.2019), would be pleased with today's post.Some biographical elements you may find here: https://chess-problems-gr.blogspot.com/2008/09/nikos-pergialis.htmlI had proposed in June 2016 the theme Pergialis, which I had described here: https://chess-problems-gr.blogspot.com/2016/06/proposal-for-theme-pergialis.htmlToday I present the Award (01/06/2021, Judge: Mario Guido Garcia) of an Iternational Thematic Tourney for » celý článok »

In chess composition there is the Fairy Chess, where we see other conditions, others pieces, other chessboards. For the question "which fairy elements are mostly used?", a statistic comes to our help, based on the about 785,000 problems that are contained in the database WinChloe by the French Christian Poisson. The statistic » celý článok »

A good article about women composers you may find at the link : https://chessbase.in/news/Women-in-the-world-of-chess-composition » celý článok »

Today we present a problem by Ioannis Garoufalidis, awarded Greek solver and composer. Condition: Because of the corona virus CoVID19 … the pieces must be kept in a distance from each other! The condition is known as Anti-ContactChess or Anti-koko. Problem-840 FEN: 8/3P2p1/8/8/8/k7/4p3/7K h#2, (2+3) twin: bKa3 to g5Ioannis Garoufalidis (GRE) original Black plays and helps White mate in two » celý článok »

We present today a well-timed problem by Nikos Mendrinos, awarded Greek solver, champion and new composer. Condition: Because of the corona virus CoVID19 … the pieces must be kept in a distance from each other! The condition is known as Anti-ContactChess or Anti-koko. Problem-839 FEN: 4k3/b7/4S3/2q4s/K7/2p2Q2/8/1R6 #2, (4+5)Nikos Mendrinos (GRE) original White plays and mates in two moves Fairy » celý článok »

I'm sorry, I will have to temporary ban the user accounts that violate the data format. » celý článok »

Thanks to otherwise unfortunate curcumstances, the second part of the planned update is now about ready to be deployed.What it is about?Sources, tourneys and persons are now full feature wiki pages with basic stats, edits history etc.By default, these wiki pages cannot be edited by anyone, but the access may » celý článok »

Olive format is again compatible with the YACPDB format. Download at Github. » celý článok »

The draw pendulum is a retro specific element used in retractor problems. Based on the three fold repetition of the same position, White can force Black to retract a weak move instead of a strong move. In order to achieve this objective, the critical position must be obtained after Black’s » celý článok »

Note that the new data format is not fully compatible with the current version of olive. » celý článok »