${DynamicText("About this genre (loading...)")}
The rules in [ivy] match those of a prior genre named [trifecta link 三叉路リンク|https://web.archive.org/web/20080606013024/http://kworld-p.hp.infoseek.co.jp/puzzle/0024.html] (2003) at the Puzzle Toy Box (no longer active), but were re-discovered by page.author independently.
They are also related to @Erich's [Path puzzles].


## [ivy] puzzles 

### Classic

#### page.author

These are the original [ivy] puzzles on a square grid. There is one [extra puzzle on a triangular grid|https://brokensign.com/puzzle/2022/11/11/ivy-triangular.html].

W=6x6&L=(2)2(3)2(2)4(1)2(1)1(1)2(4)9(1)5(2)4(3)2&N=56&D=2022-11-11&U=brokensign.com/puzzle/2022/11/11/ivy-1.html&G=ivy
W=6x6&L=(2)0(5)10(3)1(1)6(3)1(4)6(2)1(3)10&N=57&T=Ivy&D=2022-11-11&U=brokensign.com/puzzle/2022/11/11/ivy-2.html&G=ivy
W=6x6&L=y1y1y2y2y5y3y1y2y1y1y1y1y4y4y1y3y1&N=58&T=Ivy&D=2022-11-11&U=brokensign.com/puzzle/2022/11/11/ivy-3.html&G=ivy
W=8x8&L=(26)16(5)4(4)6(23)8y6y4&N=60&T=Theory_Ivy&D=2022-11-11&U=brokensign.com/puzzle/2022/11/11/ivy-4.html&G=ivy
((A=MartinEnder))

#### @AnuragSahay
W=4x4&L=y0(2)6(3)6y2(5)1&G=ivy&A=Anurag_sahay&D=2024-02-26&F=1
W=6x6&L=(2)1x2(4)2(1)2(1)3x2(1)7(1)1(4)4(2)1(2)3(1)6&G=ivy&A=Anurag_sahay&D=2024-02-26&F=1

### branch-no-adjacent
V=branch-no-adjacent

#### @PinkHoodie
This puzzle uses the new ´´branch-no-adjacent´´ variant.
W=4x4&L=(1)3(2)1(1)4y3x2(2)1&SS=3RDLDDR4R1ULL1UR&G=ivy&A=PinkHoodie&D=2023-12-16&F=1&O=Non-adjacent_Branching:_Two_branching_cells_may_not_be_orthogonally_adjacent&T=Vine_Cutting&V=branch-no-adjacent


### hasu-no-mura
V=hasu-no-mura

#### @PinkHoodie
This puzzle is a mashup with ´´hasu-no-mura´´.
W=6x6&L=(2)6x4(7)6(3)8x4x2x2(3)1&SS=6LU10ULLDDDDRURRURR8LUU&X=s2s17s2x2x11x2s2x2s11s2s2x4x2x9x2x6x9x6x2&V=hasu-no-mura&G=ivy&A=PinkHoodie&D=2023-12-24&F=3&O=Hasu-no-Mura&T=Ivy_and_Lotus



This puzzle uses the ´´branch-shallow´´ variant
W=4x4&L=(1)0(1)3(1)2(1)6(2)1(1)3&SS=0U2U8U2UU3DLLLDR&G=ivy&A=Anurag_sahay&D=2024-02-26&F=1&V=branch-shallow




### ´´pipe-partial´´
V=pipe-partial

W=6x6&L=(4)1(1)3(2)4(3)19(5)4(6)3&L-D=P32&L-L=P13P8P1P13&L-R=P0P13P1P8&L-U=P3&SS=3RU5LUU8DRDLD11ULLLURRRRD4ULDLLLDLU&G=ivy&V=pipe-partial&A=PinkHoodie&D=2024-05-15&F=3&O=Pipe_Partial&T=Cracked_Ivy

## Acknowledgements and Changes

Thanks to page.author for feedback on the implementation, in particular the addition of line-independent aux marks; and for feedback on other more general important editor bugs and features!

**2023-06-12** Thanks to @Menderbug for suggesting absent tiles be added, and for noticing a previously unaddressed edge-case.
**2023-06-13** Thanks to @Menderbug for a suggestion to improve aux marking.
**2023-12-18** Variant ´´branch-no-adjacent´´ by @PinkHoodie was added globally, with a companion puzzle here in Ivy.
**2023-12-25** An Ivy-´´hasu-no-mura´´ mashup was sent by @PinkHoodie.
**2024-02-14** @PinkHoodie kindly [modernised the panels|../panels#modern] for [Ivy], matching the criteria perfectly.
**2024-02-26** :::puzzletters @AnuragSahay made three [Ivy] puzzles and including one with the new ´´branch-shallow´´ variant
**2024-05-18** :::puzzletters @PinkHoodie sent 1 puzzle using variant ´´pipe-partial´´!