The original ruleset by @NaokiInaba (transcribed below) did not contain numbers (requiring always exactly 1 light bulb per region). 
The implementation generalises the original ruleset, following an idea that appeared in the latest WPC booklet (October 2024).

## [akari-regional] Puzzles

### @NaokiInaba

These puzzles were kindly transcribed by @PinkHoodie

Example:
W=4x4&L=z5z7z3&L-N=(1)0(1)2(1)6(1)2&LF=g1g5g2g5&SIE=2R3U11ULULU&G=akari-regional&A=Naoki_Inaba&B=PinkHoodie&D=2016-11-11&N=1&T=アマテラス_(Example)

Main Puzzles:
W=6x6&L=z4z2z2z8z3z8z2z2&L-N=(1)0(1)3(1)2(1)7(1)3(1)8(1)7(1)2(1)3&LF=g1g4g5g4g4g3g4g3g5&SIE=3RDR9RU3UR2U11UU4U5LULU2R&G=akari-regional&A=Naoki_Inaba&B=PinkHoodie&D=2016-11-11&N=1&T=アマテラス
W=7x7&L=z2z9z1z4z5z6z5z4z1z9&L-N=(1)1(1)2(1)3(1)9(1)9(1)9(1)9(1)3(1)2&LF=g1g2g4g13g3g10g6g3g6&SIE=4R4UU1RU10U2RU4U2URDDR6R5RDR13R&G=akari-regional&A=Naoki_Inaba&B=PinkHoodie&D=2016-11-11&N=2&T=アマテラス
W=8x8&L=z3z10z4z2z4z6z5z6z4z2z4z10&L-N=(1)2(1)3(1)2(1)20(1)4(1)2(1)3(1)9(1)2(1)12&LF=g0g7g3g10g13g5g5g10g3g7&SIE=6R13LUUR5R3URU4RURUUU3RD5U8RD10U4RDD5U&G=akari-regional&A=Naoki_Inaba&B=PinkHoodie&D=2016-11-11&N=3&T=アマテラス
W=9x9&L=z5z8z7z4z3z5z5z6z5z5z3z4z7z8&L-N=(1)2(1)6(1)2(1)7(1)6(1)6(1)6(1)4(1)3(1)4(1)13(1)3(1)12(1)6&LF=g2g5g2g8g5g6g5g3g5g6g19g5g2g6&SIE=3RRRRUR22U2ULU4LULDD2UU4UU5U4U14UUL4ULUU1U7RU4RR1URU&G=akari-regional&A=Naoki_Inaba&B=PinkHoodie&D=2016-11-11&N=4&T=アマテラス
W=10x10&L=z5z6z7z6z1z11z4z2z5z5z5z2z4z11z1z6z7z6&L-N=(1)1(1)6(1)2(1)4(1)3(1)5(1)13(1)7(1)3(1)2(1)3(1)7(1)13(1)2(1)2(1)4(1)2(1)3(1)16&LF=g4g4g2g3g8g6g5g14g3g5g4g4g3g5g7g6g6g2g7&SIE=2R6R9URD5U8RURU7DDLULUR4RRU4UL5URDDLL8ULU2RD6URU22U4R5LU11R5LLDLU3LULULDDLU&G=akari-regional&A=Naoki_Inaba&B=PinkHoodie&D=2016-11-11&N=5&T=アマテラス

### @WisteriaFall

W=5x5&L=z18&L-N=(1)11(3)3(1)7&LF=g5g8g4g2g2&SIE=1RURDLD16DDDRRR1URU&G=akari-regional&A=Wisteria&D=2024-10-06&T=Example

### @PinkHoodie

W=16x6&L=z0z5z4z4z9z4z4z5z4z4z9z4z4z5z4z4z9z4z4z5&L-N=(0)1(1)9(1)5(0)5(1)3(1)2(1)3(1)5(0)5(0)4(0)4(1)3(2)4(1)4(1)5(1)5(2)3(0)2(1)3(0)5(1)5(0)9&LF=g4g2g11g4g7g3g19g3g1g4g5g5g13g3g5g3&SIE=2RD2R12URRU2UR1U3RU11R2UU8UUULD1RRR2U10U2UUL3U10UUUL1RU2U4R3UU5URRU2UR4RD7U8R9LU&G=akari-regional&A=PinkHoodie&D=2024-11-26&F=2&O=Puzsq_Advent_2024&T=Advent_16x6_(Regional_Akari)
W=7x7&L=z3z5z8z5z6z5z8z5&L-N=(1)0(1)6(0)3(1)3(0)3(1)3(1)6(1)6(0)3(0)3(1)3(1)3(1)6&LF=g0g6g6g6g6g6g9g4g5&SIE=5RURU4U3U4ULL3L3R3ULUUURRU1RRUUR7RRUR2LURD9U6U11LULU&G=akari-regional&A=PinkHoodie&D=2024-11-25&F=1&O=PuzSq_Advent_2024&T=Truthy
W=12x1&L=z1z3z1z4&L-N=(1)2(0)5(0)4&LF=g0g2g6g2&SIE=6U10U6U&G=akari-regional&A=PinkHoodie&D=2024-12-01&F=1&O=PuzSq_Advent_2024_(Size_Series)
W=10x10&L=z0z2z14z17z13z2z3z2z13z17z14z2&L-N=(2)12(1)6(0)3(2)6(2)45(0)6(4)3(1)6&LF=g1g8g4g12g13g2g7g7g9g8g11g4g7g5&SIE=17DDDDDD21LDDDL26DDDDRRDRRDLDLDLL18RUUUR21UUUUULLLLLLDLDLDRRDRRDDDDLLLL5U&G=akari-regional&A=PinkHoodie&D=2024-11-26&F=2&O=Puzsq_Advent_2024&T=Advent_Day
W=10x10&L=z9z2z4z1z2z21z5z1z9z1z5z21z2z1z4z2&L-N=(2)23(1)4(0)5(0)4(2)27(3)4(4)5(1)4&LF=g1g9g4g15g9g11g4g3g8g7g9g2g5g4&SIE=7RRDDDDLUL9U6URUURULURRUUULL4R3RUUU48UUURRR2LLUUURRULURUURU12UUUL3URDR9U&G=akari-regional&A=PinkHoodie&D=2024-10-31&F=2&T=Halloween_Day_2024
W=7x7&L=z10z5z3z12z3z5&L-N=(2)6(0)3(2)8(0)8(2)3(1)16&LF=g1g10g6g2g4g5g6g2g3g5&SIE=5RD3UUU10U14U3LU2LULLU7URULU7R1R5LULDLL&G=akari-regional&A=PinkHoodie&D=2024-10-07&F=2&T=Strikes

## Variants

### ´´obstacle´´

V=obstacle

W=6x6&L-N=(0)4(1)3(1)4(1)5(1)11(1)7&L-OBST=v10v5v7v11&LF=g2g5g10g1g9g7&X=x1x2x1x5x10x6x6&SIE=9RRDLLU3U7DDLL2URRUUULDDL7U4ULLLL7UR&G=akari-regional&V=obstacle&A=Wisteria_Fall&D=2024-10-05&F=2&N=1&T=Regional_Akari


### ´´prism´´
V=prism

W=7x7&L=p2z1p1z4p6z2p2p2z1z6p1p2z2p2z6p4z1p1&L-N=(1)0(0)1(0)6(0)5(0)12(0)12(0)5(1)6(0)1&LF=g0g5g8g4g18g8g4&SIE=1RD9U2UURR5RRRRUU11RDLU6RUULULLDDRDR4R14U10LU&G=akari-regional&V=prism&A=PinkHoodie&D=2024-11-30&F=2&O=PuzSq_Advent_2024_Make_a_variant_1.3&T=Bisection

## Acknowledgements and Changes
**2024-10-06** Thanks to @WisteriaFall for sending the first [Regional Akari] puzzle for rollout, as well as the first puzzle using the ´´obstacle´´ variant!
**2024-10-07** Thanks to @XSheep for making the [rule panels|../panels] for [Regional Akari], released today after some adjustments.
**2024-10-07** @PinkHoodie transcribed @NaokiInaba's original [regional akari] puzzles and sent a puzzle for rollout!
**2024-10-08** A missing collision detected by @Rook (on touch devices) was added.
**2024-10-30** @PinkHoodie caught a day regression, promptly fixed (cause: mistakenly pushed work-in-progress)
**2024-11-02** :::puzzletters @PinkHoodie constructed 1 [akari-regional] (classic) puzzle, as part of the Halloween Event 2024
**2024-11-27** Thanks to @semiexp for adding [Akari Regional] and [Akari RGB] to the CsPuz2 puzzle solver!
**2024-11-28** The ´´prism´´ variant was incorrectly registered as "local" when in fact it is "global", causing it not to load. Thanks @PinkHoodie for reporting - fixed! Minor change to the prism style.
**2024-12-06** :::puzzletters @PinkHoodie created 1 [akari-regional] puzzle using variant ´´prism´´ plus 3 [akari-regional] (classic) puzzles, including a 12x1.
**2024-12-28** :::puzzletters @PinkHoodie shared 1 [akari-regional] (classic) puzzle - 谢谢!