Allow for chess puzzles on this site.

I think it would be a good idea to expand chess.SE's scope so as to include problem chess. The chess world contains not just people playing chess face to face over the board, but also people asking and answering questions on chess web sites, and people composing and trying to solve chess problems, etc., so problem chess should definitely be on topic here.

BTW the correct word is "problem", not "puzzle". For evidence, note the name of the British Chess Problem Society and its journal The Problemist, and the use of words related to "problem" in other languages, e.g. the titles of problem journals Problemkiste (German) and Probleemblad (Dutch).

The OP mentions questions which pose chess problems, but I favour expanding this site's scope so as to include

• questions about chess problems, real or hypothetical, general or specific
• questions about chess problem history
• questions about chess problem publications (books; periodicals)
• questions about how to construct a chess problem

What genres of chess problem. I'd certainly include:

• directmates and directstalemates
• helpmates and helpstalemates
• selfmates and selfstalemates
• win & draw studies.

Moving further from the core of the chess problem world:

• series-problems e.g. serieshelpmates and seriesselfmates
• retros e.g. "what were the last 2 moves?", "where were the missing units captured?", proof-games
• unusual goals (as in some of the problems on this site)
• variants e.g. the various forms of Circe; Madrasi;...
• fairy pieces e.g. grasshopper, nightrider

Allow for chess puzzles on this site.

I think it would be a good idea to expand chess.SE's scope so as to include problem chess. The chess world contains not just people playing chess face to face over the board, but also people asking and answering questions on chess web sites, and people composing and trying to solve chess problems, etc., so problem chess should definitely be on topic here.

BTW the correct word is "problem", not "puzzle". For evidence, note the name of the British Chess Problem Society and its journal The Problemist, and the use of words related to "problem" in other languages, e.g. the titles of problem journals Problemkiste (German) and Probleemblad (Dutch).

The OP mentions questions which pose chess problems, but I favour expanding this site's scope so as to include

• questions about chess problems, real or hypothetical, general or specific
• questions about chess problem history
• questions about chess problem publications (books; periodicals; database web sites)
• questions about how to construct a chess problem

What genres of chess problem? I'd certainly include:

• directmates and directstalemates
• helpmates and helpstalemates
• selfmates and selfstalemates
• win & draw studies.

Moving further from the core of the chess problem world:

• series-problems e.g. serieshelpmates and seriesselfmates
• retros e.g. "what were the last 2 moves?", "where were the missing units captured?", proof-games
• unusual goals (as in some of the problems on this site)
• variants e.g. the various forms of Circe; Madrasi;...
• fairy pieces e.g. grasshopper, nightrider

What tags would be appropriate? I'd favour problem subgenres for starters, e.g. helpmate, selfmate, so that problem fans who like specific kinds of problem can search on their tags, and those who hate 'em can exclude their tags. More generally, time will tell which concepts will appear in so many questions that they are worth making tags for. In the chess problem world there are dozens of named themes. Which of them will appear in several questions, though?