Thread - Round 18 : Indrajit

@ 2026-09-26 12:15 AM (#41862) (#41862) Top

Administrator

Posts: 3645

Country : India

Administrator posted @ 2026-09-26 12:15 AM

Questions related to Round 18 : Indrajit should be posted here.

@ 2026-09-29 3:14 AM (#41953 - in reply to #41862) (#41953) Top

kiwijam

Posts: 203

Country : New Zealand

kiwijam posted @ 2026-09-29 3:14 AM

R18.5 Invisible Hitori
Can invisible numbers be shaded?

R18.8 Invisible Magnets
The invisible symbols must always be "_PLUS_" or "-", and never an empty shaded cell?

@ 2026-09-29 4:45 PM (#41964 - in reply to #41953) (#41964) Top

amitsowani

Posts: 388

Country : India

amitsowani posted @ 2026-09-29 4:45 PM

kiwijam - 2026-09-29 3:14 AM

R18.5 Invisible Hitori
Can invisible numbers be shaded?

R18.8 Invisible Magnets
The invisible symbols must always be "_PLUS_" or "-", and never an empty shaded cell?

Invisible Hitori rules do not restrict the invisible cell from being shaded, but that would lead to a non-unique solution as the same cell as unshading the cell would lead to another valid solution.

Invisible magnets: the symbol will always be a '_PLUS_' or '-' sign and can never be an empty cell.

@ 2026-10-01 3:57 PM (#41987 - in reply to #41862) (#41987) Top

Para

Posts: 319

Country : The Netherlands

Para posted @ 2026-10-01 3:57 PM

Just a general question for this round

Do the invisible cells/dots/digits etc. need to be marked for a correct solution?

If not, are incorrectly marked invisible cells/dots/digits etc. counted as an incorrect solution?

@ 2026-10-02 2:48 PM (#42004 - in reply to #41987) (#42004) Top

amitsowani

Posts: 388

Country : India

amitsowani posted @ 2026-10-02 2:48 PM

Para - 2026-10-01 3:57 PM

Just a general question for this round

Do the invisible cells/dots/digits etc. need to be marked for a correct solution?

If not, are incorrectly marked invisible cells/dots/digits etc. counted as an incorrect solution?

You don't need to mark the invisible cells/dots for getting full credit.


	@ 2026-09-26 12:15 AM (#41862) (#41862) Top
Administrator Posts: 3645 Country : India	Administrator posted @ 2026-09-26 12:15 AM Questions related to Round 18 : Indrajit should be posted here.
	@ 2026-09-29 3:14 AM (#41953 - in reply to #41862) (#41953) Top
kiwijam Posts: 203 Country : New Zealand	kiwijam posted @ 2026-09-29 3:14 AM R18.5 Invisible Hitori Can invisible numbers be shaded? R18.8 Invisible Magnets The invisible symbols must always be "_PLUS_" or "-", and never an empty shaded cell?
	@ 2026-09-29 4:45 PM (#41964 - in reply to #41953) (#41964) Top
amitsowani Posts: 388 Country : India	amitsowani posted @ 2026-09-29 4:45 PM kiwijam - 2026-09-29 3:14 AM R18.5 Invisible Hitori Can invisible numbers be shaded? R18.8 Invisible Magnets The invisible symbols must always be "_PLUS_" or "-", and never an empty shaded cell? Invisible Hitori rules do not restrict the invisible cell from being shaded, but that would lead to a non-unique solution as the same cell as unshading the cell would lead to another valid solution. Invisible magnets: the symbol will always be a '_PLUS_' or '-' sign and can never be an empty cell.
	@ 2026-10-01 3:57 PM (#41987 - in reply to #41862) (#41987) Top
Para Posts: 319 Country : The Netherlands	Para posted @ 2026-10-01 3:57 PM Just a general question for this round Do the invisible cells/dots/digits etc. need to be marked for a correct solution? If not, are incorrectly marked invisible cells/dots/digits etc. counted as an incorrect solution?
	@ 2026-10-02 2:48 PM (#42004 - in reply to #41987) (#42004) Top
amitsowani Posts: 388 Country : India	amitsowani posted @ 2026-10-02 2:48 PM Para - 2026-10-01 3:57 PM Just a general question for this round Do the invisible cells/dots/digits etc. need to be marked for a correct solution? If not, are incorrectly marked invisible cells/dots/digits etc. counted as an incorrect solution? You don't need to mark the invisible cells/dots for getting full credit.