From dbd98042ebb6af4f71e20b7b11f7853888aecc07 Mon Sep 17 00:00:00 2001 From: Allan Joseph Date: Sat, 18 Apr 2026 17:19:13 +0530 Subject: [PATCH 1/3] export puzzle "day" field for daily puzzles --- .gitignore | 5 +++++ src/main/scala/Puzzles.scala | 15 +++++++++++---- 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/.gitignore b/.gitignore index 84575a9..2b0d7ad 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,8 @@ +.bloop/ +.metals/ +.vscode/ + target/ out/ project/project +project/metals.sbt diff --git a/src/main/scala/Puzzles.scala b/src/main/scala/Puzzles.scala index 883c296..78de703 100644 --- a/src/main/scala/Puzzles.scala +++ b/src/main/scala/Puzzles.scala @@ -7,6 +7,7 @@ import akka.util.ByteString import chess.format.{ Fen, FullFen } import com.typesafe.config.ConfigFactory import java.nio.file.Paths +import java.time.Instant import lila.db.dsl.* import reactivemongo.akkastream.cursorProducer import reactivemongo.api.* @@ -27,7 +28,8 @@ object Puzzles: plays: Int, themes: List[String], openings: List[String], - gameUrl: String + gameUrl: String, + day: Option[Instant] ) def main(args: Array[String]): Unit = @@ -65,6 +67,7 @@ object Puzzles: plays <- doc.int("plays") themes <- doc.getAsOpt[List[String]]("themes") gameId <- doc.string("gameId") + day = doc.getAsOpt[Instant]("day") openings = doc.getAsOpt[List[String]]("opening") yield PuzzleLine( id = id, @@ -80,7 +83,8 @@ object Puzzles: val hash = Fen.readPly(fen).map(_ + 1).fold("")(p => s"#$p") s"https://lichess.org/${gameId}${if asWhite then "" else "/black"}$hash" , - openings = openings.getOrElse(Nil) + openings = openings.getOrElse(Nil), + day = day ) def toCsvLine(puzzle: PuzzleLine): String = @@ -94,7 +98,8 @@ object Puzzles: puzzle.plays, puzzle.themes.sorted.mkString(" "), puzzle.gameUrl, - puzzle.openings.mkString(" ") + puzzle.openings.mkString(" "), + puzzle.day.map(_.toEpochMilli()).getOrElse("") ).mkString(",") def csvSink: Sink[String, Future[IOResult]] = @@ -134,7 +139,9 @@ object Puzzles: .map(toCsvLine) .prepend( Source( - List("PuzzleId,FEN,Moves,Rating,RatingDeviation,Popularity,NbPlays,Themes,GameUrl,OpeningTags") + List( + "PuzzleId,FEN,Moves,Rating,RatingDeviation,Popularity,NbPlays,Themes,GameUrl,OpeningTags,date" + ) ) ) .runWith(csvSink) From b615701de67d8b37b36e42dcfd5d201dd6f740a7 Mon Sep 17 00:00:00 2001 From: Allan Joseph Date: Sat, 18 Apr 2026 17:22:41 +0530 Subject: [PATCH 2/3] rename column --- src/main/scala/Puzzles.scala | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/main/scala/Puzzles.scala b/src/main/scala/Puzzles.scala index 78de703..d9e1547 100644 --- a/src/main/scala/Puzzles.scala +++ b/src/main/scala/Puzzles.scala @@ -140,7 +140,7 @@ object Puzzles: .prepend( Source( List( - "PuzzleId,FEN,Moves,Rating,RatingDeviation,Popularity,NbPlays,Themes,GameUrl,OpeningTags,date" + "PuzzleId,FEN,Moves,Rating,RatingDeviation,Popularity,NbPlays,Themes,GameUrl,OpeningTags,DailyDate" ) ) ) From b3aa4a6a3e10a1c0b2e8f139a89cf6da874f274f Mon Sep 17 00:00:00 2001 From: Allan Joseph Date: Sat, 18 Apr 2026 18:05:03 +0530 Subject: [PATCH 3/3] untested: update web template --- web/index.html.tpl | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/web/index.html.tpl b/web/index.html.tpl index f2275f8..231c8f4 100644 --- a/web/index.html.tpl +++ b/web/index.html.tpl @@ -136,12 +136,12 @@

Format

Puzzles are formatted as standard CSV. The fields are as follows:

- 
PuzzleId,FEN,Moves,Rating,RatingDeviation,Popularity,NbPlays,Themes,GameUrl,OpeningTags
+ 
PuzzleId,FEN,Moves,Rating,RatingDeviation,Popularity,NbPlays,Themes,GameUrl,OpeningTags,DailyDate

Sample

- 
00sHx,q3k1nr/1pp1nQpp/3p4/1P2p3/4P3/B1PP1b2/B5PP/5K2 b k - 0 17,e8d7 a2e6 d7d8 f7f8,1760,80,83,72,mate mateIn2 middlegame short,https://lichess.org/yyznGmXs/black#34,Italian_Game Italian_Game_Classical_Variation
-00sJ9,r3r1k1/p4ppp/2p2n2/1p6/3P1qb1/2NQR3/PPB2PP1/R1B3K1 w - - 5 18,e3g3 e8e1 g1h2 e1c1 a1c1 f4h6 h2g1 h6c1,2671,105,87,325,advantage attraction fork middlegame sacrifice veryLong,https://lichess.org/gyFeQsOE#35,French_Defense French_Defense_Exchange_Variation
-00sJb,Q1b2r1k/p2np2p/5bp1/q7/5P2/4B3/PPP3PP/2KR1B1R w - - 1 17,d1d7 a5e1 d7d1 e1e3 c1b1 e3b6,2235,76,97,64,advantage fork long,https://lichess.org/kiuvTFoE#33,Sicilian_Defense Sicilian_Defense_Dragon_Variation
-00sO1,1k1r4/pp3pp1/2p1p3/4b3/P3n1P1/8/KPP2PN1/3rBR1R b - - 2 31,b8c7 e1a5 b7b6 f1d1,998,85,94,293,advantage discoveredAttack master middlegame short,https://lichess.org/vsfFkG0s/black#62,
+ 
00sHx,q3k1nr/1pp1nQpp/3p4/1P2p3/4P3/B1PP1b2/B5PP/5K2 b k - 0 17,e8d7 a2e6 d7d8 f7f8,1760,80,83,72,mate mateIn2 middlegame short,https://lichess.org/yyznGmXs/black#34,Italian_Game Italian_Game_Classical_Variation,
+00sJ9,r3r1k1/p4ppp/2p2n2/1p6/3P1qb1/2NQR3/PPB2PP1/R1B3K1 w - - 5 18,e3g3 e8e1 g1h2 e1c1 a1c1 f4h6 h2g1 h6c1,2671,105,87,325,advantage attraction fork middlegame sacrifice veryLong,https://lichess.org/gyFeQsOE#35,French_Defense French_Defense_Exchange_Variation,1607774862751
+00sJb,Q1b2r1k/p2np2p/5bp1/q7/5P2/4B3/PPP3PP/2KR1B1R w - - 1 17,d1d7 a5e1 d7d1 e1e3 c1b1 e3b6,2235,76,97,64,advantage fork long,https://lichess.org/kiuvTFoE#33,Sicilian_Defense Sicilian_Defense_Dragon_Variation,
+00sO1,1k1r4/pp3pp1/2p1p3/4b3/P3n1P1/8/KPP2PN1/3rBR1R b - - 2 31,b8c7 e1a5 b7b6 f1d1,998,85,94,293,advantage discoveredAttack master middlegame short,https://lichess.org/vsfFkG0s/black#62,,

Notes

Moves are in UCI format. Use a chess library to convert them to SAN, for display. @@ -167,6 +167,9 @@ The OpeningTags field is only set for puzzles starting before move 20. Here's the list of possible openings.

+

+ The DailyDate field is a Unix timestamp in milliseconds. If present, it indicates the date when the puzzle was featured as a daily puzzle on lichess.org/training/daily. +

Generating these chess puzzles took more than 100 years of CPU time.