Question marks were not included in this implementation since they carry no information - not every number clue needs an opposite pair.


## [cross-border-parity-loop] puzzles

### @PinkHoodie


W=16x6&L-N=(5)6(3)4(1)1(3)12(6)5(3)12(6)6(0)13(7)5(2)8(2)4(5)6&L-S=(2)4(1)2(1)5(1)29(1)8(1)11(0)17&SIE=5RU2U8RR2U6UUULLDDDDRURR3U7U3LUUUURRDDDDLU2U2U3R4R9U5RDDDDLLUUUURDDD3R4U4R3U6R3UR5DDDDLLUUUURRR13R4R1DLLUUUURRDDDL3U&G=cross-border-parity-loop&A=PinkHoodie&D=2025-03-18&F=3&O=Enigmarch_2025&T=Pause_To_Change_Brightness_16x6
W=6x6&LI-N=(5)1(0)4(0)9(0)1(0)20&LI-S=(1)3(4)2(0)10&SIE=2RURDDD2RD8DRUU3R8U5UU6DLDLDRRRULU3R10LU&G=cross-border-parity-loop&A=PinkHoodie&D=2023-11-21&F=3&T=Conscious_Trial
W=4x4x3&LI-N=(1)6(1)7(0)3(1)1&LI-S=(0)4(0)1(2)4(1)3(1)3(0)1(0)11(1)2&LF=b9b3&SIE=10RERDRDREULW3ERERD9ULWDR7E5ULULWDW5DRD2EULU4EU6EUE3UEUER16UE&SS=19EUURDDDLWWLELWUUUERDDR&X=x16x11x44x6x9x9&V=hex&G=cross-border-parity-loop&A=PinkHoodie&D=2023-12-10&F=2&N=2&T=Hexing_the_Grid
W=7x7&L-N=(1)3(3)3(2)6(1)6(3)8(3)12(1)6&L-S=(1)22(2)8(1)12&LF=b35&SIE=1RU11DDRU6RRDLLL4LDDL5RU3LU4RUURD6UL1RUUR3LLDLUUR8ULLLURR10LLU&SS=48LLLLLLDRRRRRDDLLULLLDRRDLLDDRRRRRULLURRRUUUU&G=cross-border-parity-loop&A=PinkHoodie&D=2024-03-04&F=2&T=Outsfaed

## Variants
### ´´loop-to-path´´
V=loop-to-path

This puzzle uses the new ´´loop-to-path´´ variant!
W=8x8&L=w35w28&L-N=(3)1(3)4(1)36&L-S=(1)16(4)2(4)38&L-SF=s21f30&SIE=4RRRUUUU2RRR1R5U6U5R4UULLL2UURRUURRR16UURRR2UURRR1R3UU9U4R4U&SS=21LLUURRRRRRRDDLLLDDLLLDLDDRRRURRDRRUUUL&G=cross-border-parity-loop&V=loop-to-path,snake,required-whites&A=PinkHoodie&D=2023-12-31&F=3&O=Loop_To_Path_+_Snake_+_Required_Whites&T=The_First_Lampropeltis_californiaeW=8x8&L=w35w28&L-N=(3)1(3)4(1)36&L-S=(1)16(4)2(4)38&L-SF=s21f30&SIE=4RRRUUUU2RRR1R5U6U5R4UULLL2UURRUURRR16UURRR2UURRR1R3UU9U4R4U&SS=21LLUURRRRRRRDDLLLDDLLLDLDDRRRURRDRRUUUL&G=cross-border-parity-loop&V=loop-to-path,snake,required-whites&A=PinkHoodie&D=2023-12-31&F=3&O=Loop_To_Path_+_Snake_+_Required_Whites&T=The_First_Lampropeltis_californiae

## Acknowledgements and Changes
**2023-12-03** Thanks to @MartinEnder for substantial feedback on the first draft of Cross Border Parity Loop, yielding several improvements!
**2023-12-03** Thanks to @PinkHoodie for sending in the first Cross Border Parity Loop puzzle in record time, and for suggesting given (optional) white/black marks
**2023-12-03** Thanks to @XSheep suggesting adjustments to the given colour marks to make them less heavy.
**2023-12-11** The full and snake variants are now totally compatible with multi-line genres like Cross Border Parity Loop (@PinkHoodie)
**2023-12-11** Variants required-whites and required-blacks were added to all pearl genres, an implicit idea by @hutthutthutt
**2023-12-11** :::puzzletters @PinkHoodie sent a puzzle to mark the ´´hex´´ variant of Cross Border Parity Loop
**2024-01-01** A bug with the new ´´loop-to-path´´ variant found by @PinkHoodie when making the puzzle that is now listed. Fixed. Thank you!
**2024-03-05** A new puzzle was sent by @PinkHoodie
**2024-03-09** A recent visual regression found by @PinkHoodie was corrected (cause: changes to the number templates to support an upcoming number update)
**2025-03-23** :::puzzletters @PinkHoodie shared 1 [cross-border-parity-loop] (classic) puzzle for Enigmarch 2025!