Akari (RGB)

Updated on (created ) — Filed under: List Paper Ported Puzzle colour number piece rainbow sight テラシティ蔵前 (Terra-city Kuramae)

This genre was forgotten until 2023. It was re-invented, when Jubale casually asked what would happen if Akari 美術館 had lights of varied colours. Jolson elaborated on this idea by suggesting the use of colour targets, included mixed secondary colours. The hex variant then appeared naturally as a way to allow three-colour mixing (white target), following the RGB ループ Loop convention.

Setting tip: the following uniqueness deduction may be undesired: if a cell sees no target color clues, any lightbulb can be placed there - so if the puzzle is unique, no lightbulb will

by Eli Doris (TwoHoleStraw)

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This puzzle was part of Enigmarch 2024:

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This puzzle uses the local antiking-any variant: Lightbulbs may not be a king's move apart .

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This puzzle uses the standard antiking variant (same-coloured lightbulbs may not be placed a king's move apart).

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This example by Leeor (I Love Sleeping) introduces the new variant knapp-daneben-hue, for colour-wheel rotation of target clues, by plus or minus 60 degrees.

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And a puzzle by PinkHoodie, for Advent 2024:

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Combining knapp-daneben-hue with the standard knapp-daneben variant (all number clues off-by-one) yielded the following puzzle:

hope13 hope14 hope15 2023-10-08 Visual clarity improvements (ongoing): increased saturation on illuminated tiles; changed background on unlit tiles, highlighted akari directly on top of wrong tile. Thanks Plostoni, Jubale, Wisteria Fall, Wessel Strijkstra, Matze, Eli Doris (TwoHoleStraw) for feedback. 2023-10-09 Wisteria Fall made the first Akari RGB (11x11) after the example puzzle - thank you! 2023-10-10 Assorted changes changes: RGB pencilmarks added (Malrog), satisfied clues became grayed out instead (dohz), added a panel clarifying that lights can be on targets (Mopp), hidden target under walls no longer allowed (Wisteria Fall), aux marks are hidden by LOS (Plostoni). 2023-10-11 Big RGB Akari redesign with Eli Doris (TwoHoleStraw): colours were adjusted using the LAB colour space, targets moved to corner so they are visible at all times; textures added to preserve colourblind-friendliness. 2023-10-12 Added "unknown" lights, suggested by Wisteria Fall (who shared one extra puzzle)! Textures swapped by small corner letters, and lit tiles became slightly translucent. Added one extra panel and clarified another (Tenth, dohz, Lennard Sprong (X_Sheep)). 2023-10-12 Fixed the dragging bug reported by Blaž Urban Gracar and Seren (which might have affected others as well) 2023-10-13 Added the hex variant, following the same convention as RGB ループ Loop. Wisteria Fall shared the "Glider Gun" puzzle! 2023-10-14 Carrick22 shared a fantastic set of 3 puzzles, and Wisteria Fall shared the largest puzzle, "Prismarine"! 2023-10-17 Added set of three puzzles by Eli Doris (TwoHoleStraw), two of them hexagonal! 2023-10-18 The actual first Hex Akari (RGB) by The Book Wyrm, was added today - thank you! Loading bug fixed (Karoo) 2023-10-19 After pondering ideas by The Book Wyrm, Wisteria Fall and Malrog, placeable laser lines were tentatively added. Thansk to Eli Doris (TwoHoleStraw) for sparking the discussion. 2023-10-25 Thanks to Eric Fox for live-solving Akari (RGB) on Cracking The Cryptic! 2023-10-26 Three additional puzzles by Wisteria Fall and Eli Doris (TwoHoleStraw) were added, including the antiking variant! Difficulties revised. 2023-10-26 Well-lit target visibility increased, as suggested by Jubale. Thank you! 2023-11-23 Minor regression fixed (the line and sketch tools had been made available by accident) 2023-12-02 Variant-of-variant antiking-equal added with a huge puzzle by PinkHoodie - thank you! 2023-12-05 A click area misalignment detected by Wisteria Fall, causing some lightbulbs to be incorrectly placed (or not at all), was fixed. 2023-12-06 Lightbulbs can no longer be placed on absent tiles (a regression detected by Wisteria Fall) 2023-12-19 A template loading regression reported by PinkHoodie and Calica on hex grids was corrected 2024-01-24 puzzletters Wisteria Fall's puzzles City of Gold, Gemstone and Beehive were added - thank you! 2024-03-21 puzzletters PinkHoodie sent a second antiking-unequal variant puzzle, showcasing an interesting deduction in a compact 9x9. 2024-03-27 knapp-daneben now works in Akari (RGB), a suggestion by Leeor (I Love Sleeping) 2024-03-31 Local variant knapp-daneben-hue, created by Leeor (I Love Sleeping) was added to Akari (RGB), alongside two puzzles! 2024-05-18 A bonus puzzle of the Akari Dice Series was shared by Joelangstaff. 2024-10-24 Thanks to Laclale for detecting a setting error in one of the puzzles (target over black), corrected. 2024-11-25 Former local variant antiking-equal renamed just antiking (like the global variant) whereas former variant antiking renamed antiking-any (local variant). This aligns the behaviour with that across other genres. 2024-11-25 Thanks to PinkHoodie for making the variant panels antiking,antiking-any,antiknight,antiknight-any 2024-11-27 A visual regression on hex grids (checkered triangular tiles) that had been tolerated for some time is now corrected. 2024-12-06 puzzletters PinkHoodie set 3 Akari (RGB) puzzles using variants antiking-any,antiknight; antiking,antiknight-any and knapp-daneben-hue crafted 3 Akari (RGB) (classic) puzzles, , including a 12x1. 2024-12-09 Genre authorship was updated today, considering the info sent by PinkHoodie and prior research by Joelangstaff 2024-12-28 puzzletters PinkHoodie shared 1 Akari (RGB) (classic) puzzle - kiitos!