Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Unsolved
Collapse
Discussion Forum to share and further the development of home control and automation, independent of platforms.
  1. Home
  2. Software
  3. Multi-System Reactor
  4. Can someone explain for me how to use Reset reaction in MSR without disturbing other rules.
[Reactor] Bug when sending MQTT boolean payloads
therealdbT
Topic thumbnail image
Multi-System Reactor
Difficulty defining repeating annual period
R
I have tried numerous ways to define a recurring annual period, for example from December 15 to January 15. No matter which method I try - after and before, between, after and/not after, Reactor reports "waiting for invalid date, invalid date. Some constructs also seem to cause Reactor to hang, timeout and restart. For example "before January 15 is evaluated as true, but reports "waiting for invalid date, invalid date". Does anyone have a tried and true method to define a recurring annual period? I think the "between" that I used successfully in the past may have broken with one of the updates.
Multi-System Reactor
Need help with sequence
T
Good evening all, For about the past week or so, I've been having problems with a specific rule in my home automation that controls when my home goes from an Away mode to Home mode. One of the conditions it checked for was my alarm panel, when it changed from Armed Away to Disarmed. There seems to have been a firmware update on the panel that added an intermittent step of "pending", and I can't say for certain it happens 100% of the time. Is there a way to write a condition that so it changes from one condition, to the next, and then another condition? As in, Home alarm changes from armed_away to pending to disarmed. Thanks.
Multi-System Reactor
Possible feature request?
CatmanV2C
No idea how easy this would be. During my migration away from Z-wave I've been replacing the Z-wave devices with Sonoff which has broken some of my automations. Any chance of a 'Test Reaction' function to call out which ones are broken because an entity no longer exists? Without actually running the reaction? Or does this exist already and I'm just not aware of how to do it? Obviously I can see entities that are no longer available, but not quite what I'm looking for. I guess it's something of an edge case so no huge issue. TIA! C
Multi-System Reactor
Copying a global reaction
tunnusT
With build 25328, if you copy a global reaction, a new reaction does not appear in the UI unless you do a refresh. I recall this used to work without needing this page refresh? Anyway, only a minor nuisance.
Multi-System Reactor
Logic Assistance: Exterior Lights on when Illuminance Below Threshold
PablaP
Topic thumbnail image
Multi-System Reactor
Time series documentation
tunnusT
Is the current manual (incl. examples) up to date with how retention value is handled in time series configuration? Referring to this post
Multi-System Reactor
MQTT templates for ZIgbee scene controller, or a better way?
CatmanV2C
Topic thumbnail image
Multi-System Reactor
Reset a delay
CatmanV2C
I'm sure this has been asked, and answered, but damned if I can figure it out Use case: I have a rear garden with lights. A door from the kitchen into the garden and a door from the garage. Currently if I open the kitchen door the lights come on (yay) and a 3 minute delay starts. After 3 minutes, no matter what else happens, the lights go off (Boo! But also yay!) What I would like is for the 3 minute delay until the lights go off to start from the latest door open event. That is, if I'm going from kitchen to garage, and back again, the lights stay on until there's three minutes of no activity. I've tried 'hacking' with a virtual switch, but can't seem to stop the delay. Any pointers? TIA C
Multi-System Reactor
Reactor Loading Screen Safari
S
Topic thumbnail image
Multi-System Reactor
Constraints states visually do not match actual
S
Topic thumbnail image
Multi-System Reactor
[MSR] Feature request: For Each action on arrays/groups
therealdbT
Topic thumbnail image
Multi-System Reactor
[Solved] Error: Command timeout
G
at _ClientAPI._commandTimeout (http://192.168.1.100:8111/client/ClientAPI.js:807:179 Seeing this randomly when returning to open browser tab after being away awhile. Once, maybe twice a day. "What did you do to trigger it?" Literally nothing, just walked away and returned and there it was. Actions taken in reasonably close proximity to this particular instance of it popping up: I'd restarted the MSR container in Portainer. I'll try to grab some logs here shortly.
Multi-System Reactor
Issue with MSR UI becoming unresponsive
S
I'm having an issue with MSR's UI being very unresponsive. It started happening a couple days ago and I didn't make any changes that would have caused this except adding some meross lan devices in HA. When I go into an entity action and use the search functionality, it usually will start filtering and then get to a place after a few letters are entered where it will take 30 seconds or more (sometimes minutes) for the UI to show what I am typing. During this time MSR ui is completely unresponsive. I've tried multiple browsers and multiple computers. HA and MSR are both deployed in docker. I have run HTOP on the host and when the problem happens there are no CPU/Memory spikes at all. From a functionality standpoint MSR is working perfectly. This seems to be an UI issue only. Do i need to ditch Docker and run MSR on a Proxmox VM? I have both stand alone Docker and Proxmox environments. I dont mind doing that I just want to be able to use the UI again... Installation method Home Assistant Container Core 2025.7.3 Frontend 20250702.3 nothing crazy in the logs except some openweather map stuff that doesn't make any sense as it is working fine in MSR Any help would be greatly appreciated Reactor latest-25328-b2ed1365 app 25328 configuration from /var/reactor/config NODE_PATH /opt/reactor:/opt/reactor/node_modules [latest-25328]2025-11-30T20:01:53.843Z <app:null> Reactor build latest-25328-b2ed1365 starting on v24.11.1 /usr/local/bin/node [latest-25328]2025-11-30T20:01:53.844Z <app:null> Process ID 1 user/group 0/0; docker; platform linux/x64 #161-Ubuntu SMP Tue Jul 22 14:25:40 UTC 2025; locale (undefined) [latest-25328]2025-11-30T20:01:53.844Z <app:null> Basedir /opt/reactor; data in /var/reactor/storage [latest-25328]2025-11-30T20:01:53.844Z <app:null> NODE_PATH=/opt/reactor:/opt/reactor/node_modules [latest-25328]2025-11-30T20:01:53.865Z <app:null> Resolved timezone=America/New_York, environment TZ=America/New_York; offset minutes from UTC=-300 [latest-25328]2025-11-30T20:01:53.867Z <default:null> Module i18n v25141 [latest-25328]2025-11-30T20:01:53.867Z <app:null> Configured locale (undefined); selected locale(s) en-US.UTF-8 [latest-25328]2025-11-30T20:01:53.879Z <app:null> Loaded locale en-US for en-US [latest-25328]2025-11-30T20:01:53.879Z <app:null> Local date/time using configured timezone and locale formatting is "11/30/2025, 3:01:53 PM" [latest-25328]2025-11-30T20:01:53.889Z <Structure:null> Module Structure v25326 [latest-25328]2025-11-30T20:01:53.890Z <Capabilities:null> Module Capabilities v24312 [latest-25328]2025-11-30T20:01:53.904Z <Plugin:null> Module Plugin v25141 [latest-25328]2025-11-30T20:01:53.923Z <Timer:null> Module Timer v25279 [latest-25328]2025-11-30T20:01:53.924Z <TimerBroker:null> Module TimerBroker v25314 [latest-25328]2025-11-30T20:01:53.927Z <Entity:null> Module Entity v25251 [latest-25328]2025-11-30T20:01:53.929Z <Controller:null> Module Controller v25253 [latest-25328]2025-11-30T20:01:53.930Z <AlertManager:null> Module AlertManager v25318 [latest-25328]2025-11-30T20:01:53.937Z <default:null> Module Ruleset v25283 [latest-25328]2025-11-30T20:01:53.937Z <default:null> Module Rulesets v25141 [latest-25328]2025-11-30T20:01:53.942Z <GlobalExpression:null> Module GlobalExpression v25258 [latest-25328]2025-11-30T20:01:53.953Z <Predicate:null> Module Predicate v25328 [latest-25328]2025-11-30T20:01:53.956Z <Rule:null> Module Rule v25323 [latest-25328]2025-11-30T20:01:53.958Z <GlobalReaction:null> Module GlobalReaction v25292 [latest-25328]2025-11-30T20:01:53.959Z <Engine:null> Module Engine v25325 [latest-25328]2025-11-30T20:01:53.964Z <httpapi:null> Module httpapi v25328 [latest-25328]2025-11-30T20:01:53.972Z <wsapi:null> Module wsapi v25328 [latest-25328]2025-11-30T20:01:53.994Z <TaskQueue:null> Module TaskQueue 24138 [latest-25328]2025-11-30T20:01:53.994Z <VeraController:null> Module VeraController v25141 [latest-25328]2025-11-30T20:01:54.179Z <HassController:null> Module HassController v25325 [latest-25328]2025-11-30T20:02:13.797Z <OWMWeatherController:null> Module OWMWeatherController v25268 [latest-25328]2025-11-30T20:02:13.800Z <SystemController:null> Module SystemController v25323 [latest-25328]2025-11-30T20:02:13.807Z <MQTTController:null> Module MQTTController v22092 [latest-25328]2025-11-30T20:02:20.630Z <OWMWeatherController:CRIT> FetchError: request to https://api.openweathermap.org/data/2.5/weather?lat=xxxxxxxxxx&lon=-xxxxxxxxx&appid=xxxxxxxxxxxxxxxxxxxxxxxxxx&units=standard&_r=1xxxxxxxxxxxxxxfailed, reason: [-] FetchError: request to https://api.openweathermap.org/data/2.5/weather?lat=xxxxxxxxxxx&lon=-xxxxxxxxxxxxxxxxxx&appid=xxxxxxxxxxxxxxxxxxx&units=standard&_r=xxxxxxxxxxxxxxxfailed, reason: at ClientRequest.<anonymous> (/opt/reactor/node_modules/node-fetch/lib/index.js:1501:11) at ClientRequest.emit (node:events:508:28) at ClientRequest.emit (node:domain:489:12) at emitErrorEvent (node:_http_client:108:11) at TLSSocket.socketErrorListener (node:_http_client:575:5) at TLSSocket.emit (node:events:508:28) at TLSSocket.emit (node:domain:489:12) at emitErrorNT (node:internal/streams/destroy:170:8) at emitErrorCloseNT (node:internal/streams/destroy:129:3) at processTicksAndRejections (node:internal/process/task_queues:89:21
Multi-System Reactor
Date/time condition
tunnusT
Topic thumbnail image
Multi-System Reactor
Device log?
G
@toggledbits is there a log that will show me what rule is turning on a specific device? I've got a switch that has been kicking on at 2200 ET for several nights now and the reactor.log doesn't have a thing in it that I can see on a device level (it being more rules-based).
Multi-System Reactor
Midnight crossing not working in date/time condition (build 25325)
tunnusT
Topic thumbnail image
Multi-System Reactor
Reactor (Multi-System/Multi-Hub) Announcements
toggledbitsT
Build 21228 has been released. Docker images available from DockerHub as usual, and bare-metal packages here. Home Assistant up to version 2021.8.6 supported; the online version of the manual will now state the current supported versions; Fix an error in OWMWeatherController that could cause it to stop updating; Unify the approach to entity filtering on all hub interface classes (controllers); this works for device entities only; it may be extended to other entities later; Improve error detail in messages for EzloController during auth phase; Add isRuleSet() and isRuleEnabled() functions to expressions extensions; Implement set action for lock and passage capabilities (makes them more easily scriptable in some cases); Fix a place in the UI where 24-hour time was not being displayed.
Multi-System Reactor
[Solved] Local expression in Rule does not evaluate as they used to do
CrilleC
Topic thumbnail image
Multi-System Reactor
Home Assistant 2025.11.2 and latest-25315
CrilleC
Topic thumbnail image
Multi-System Reactor

Can someone explain for me how to use Reset reaction in MSR without disturbing other rules.

Scheduled Pinned Locked Moved Multi-System Reactor
34 Posts 4 Posters 5.3k Views 4 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • M Matteburk

    @crille yes i understand but you cant have constraints for Reset Reactions. Only for Reactions.

    I’m not friend with MSR at them moment but I know it’s just something I understand wrong... Gaaah drives me nuts!

    CrilleC Offline
    CrilleC Offline
    Crille
    wrote on last edited by
    #4

    @matteburk Yes, the Constraints would block the Reaction in Rule 1 to run, thus will Reset Reaction in Rule 1 not run.

    1 Reply Last reply
    0
    • LibraSunL Offline
      LibraSunL Offline
      LibraSun
      wrote on last edited by LibraSun
      #5

      @toggledbits I think it's becoming apparent that users might interpret Constraints in one of two diametrically opposite meanings. Some might think for example that a TRUE constraint condition will prevent the rule from continuing to run. Others, more correctly in my opinion, will understand that a constraint condition must be TRUE in order for the rule to run.
      I wonder if there could not be some clarifying language in the user interface?

      1 Reply Last reply
      0
      • toggledbitsT Offline
        toggledbitsT Offline
        toggledbits
        wrote on last edited by
        #6

        I'll refer to the documentation, and you can tell me if it's clear enough or still needs work: https://reactor.toggledbits.com/docs/Rulesets/

        Also, it would be good to have the full rules posted in this thread. The descriptions of what the rules look like just leave too much room for interpretation. Let's see what's actually being done.

        Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

        M 1 Reply Last reply
        0
        • toggledbitsT toggledbits

          I'll refer to the documentation, and you can tell me if it's clear enough or still needs work: https://reactor.toggledbits.com/docs/Rulesets/

          Also, it would be good to have the full rules posted in this thread. The descriptions of what the rules look like just leave too much room for interpretation. Let's see what's actually being done.

          M Offline
          M Offline
          Matteburk
          wrote on last edited by Matteburk
          #7
          This post is deleted!
          CrilleC 1 Reply Last reply
          0
          • M Offline
            M Offline
            Matteburk
            wrote on last edited by
            #8
            This post is deleted!
            1 Reply Last reply
            0
            • M Matteburk

              This post is deleted!

              CrilleC Offline
              CrilleC Offline
              Crille
              wrote on last edited by
              #9

              @matteburk I think you need to put AND in top level for the triggers for Rule 1.

              M 1 Reply Last reply
              0
              • CrilleC Crille

                @matteburk I think you need to put AND in top level for the triggers for Rule 1.

                M Offline
                M Offline
                Matteburk
                wrote on last edited by
                #10

                @crille saw that , have been experimenting so got a typo... but still same problem for me anyway

                1 Reply Last reply
                0
                • M Offline
                  M Offline
                  Matteburk
                  wrote on last edited by Matteburk
                  #11

                  Rule 1

                  @toggledbits Here are screenshots
                  Rule 1
                  Skärmavbild 2021-03-28 kl. 18.23.09.png Skärmavbild 2021-03-28 kl. 18.23.22.png

                  Rule 2
                  Skärmavbild 2021-03-28 kl. 18.25.00.png

                  CrilleC 1 Reply Last reply
                  0
                  • toggledbitsT Offline
                    toggledbitsT Offline
                    toggledbits
                    wrote on last edited by
                    #12

                    OK, that's a start, I guess, although they are barely readable. Maybe we'll need to go back to some kind of Logic Summary-like thing.

                    Now, what are these supposed to do, and what is the problem you are having with them?

                    Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

                    1 Reply Last reply
                    0
                    • M Matteburk

                      Rule 1

                      @toggledbits Here are screenshots
                      Rule 1
                      Skärmavbild 2021-03-28 kl. 18.23.09.png Skärmavbild 2021-03-28 kl. 18.23.22.png

                      Rule 2
                      Skärmavbild 2021-03-28 kl. 18.25.00.png

                      CrilleC Offline
                      CrilleC Offline
                      Crille
                      wrote on last edited by Crille
                      #13

                      @matteburk I would still put condition "natt"/"dag" and "kväll" in Constraints as it's not a trigger, rather a condition and would prevent Reaction/Reset Reaction to run.

                      Edit: Clarification for future readers. Forcing the Constraints condition to go FALSE prevents the SET/Reset Reaction to run.

                      toggledbitsT M 2 Replies Last reply
                      0
                      • CrilleC Crille

                        @matteburk I would still put condition "natt"/"dag" and "kväll" in Constraints as it's not a trigger, rather a condition and would prevent Reaction/Reset Reaction to run.

                        Edit: Clarification for future readers. Forcing the Constraints condition to go FALSE prevents the SET/Reset Reaction to run.

                        toggledbitsT Offline
                        toggledbitsT Offline
                        toggledbits
                        wrote on last edited by toggledbits
                        #14

                        @crille said in Can someone explain for me how to use Reset reaction in MSR without disturbing other rules.:

                        rather a condition and would prevent Reaction/Reset Reaction to run.

                        No, that's not how Constraints work. Constraints do not prevent Reset reactions.

                        Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

                        CrilleC 1 Reply Last reply
                        1
                        • toggledbitsT toggledbits

                          @crille said in Can someone explain for me how to use Reset reaction in MSR without disturbing other rules.:

                          rather a condition and would prevent Reaction/Reset Reaction to run.

                          No, that's not how Constraints work. Constraints do not prevent Reset reactions.

                          CrilleC Offline
                          CrilleC Offline
                          Crille
                          wrote on last edited by
                          #15

                          @toggledbits No, but it will prevent the Reaction to run, thus the Reset Reaction?

                          toggledbitsT 1 Reply Last reply
                          0
                          • M Offline
                            M Offline
                            Matteburk
                            wrote on last edited by
                            #16

                            Rule 1 is 1 motion sensor I Master bedroom and 2 motion sensors in bathroom that if any is true (delayed reset 120s)and Natt mode is true master bedroom light and bathroom light is turn on. Reset reaction turn off
                            Rule 2 If any of the 2 motion sensors in bathroom is true(delayed reset 600s) and dag or kväll mode is true bathroom light is turned on . Reset reaction turn off

                            toggledbitsT 1 Reply Last reply
                            0
                            • CrilleC Crille

                              @toggledbits No, but it will prevent the Reaction to run, thus the Reset Reaction?

                              toggledbitsT Offline
                              toggledbitsT Offline
                              toggledbits
                              wrote on last edited by
                              #17

                              @crille said in Can someone explain for me how to use Reset reaction in MSR without disturbing other rules.:

                              o, but it will prevent the Reaction to run, thus the Reset Reaction?

                              THAT is true, so we need to be careful how we phrase it, because your other statement is incorrect and misleading, and would give other readers the wrong idea. But you are correct in the last: if the SET reaction does not run, neither can the RESET, because RESET will only follow SET (once the basic state of the rules has been established).

                              Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

                              CrilleC 1 Reply Last reply
                              0
                              • M Matteburk

                                Rule 1 is 1 motion sensor I Master bedroom and 2 motion sensors in bathroom that if any is true (delayed reset 120s)and Natt mode is true master bedroom light and bathroom light is turn on. Reset reaction turn off
                                Rule 2 If any of the 2 motion sensors in bathroom is true(delayed reset 600s) and dag or kväll mode is true bathroom light is turned on . Reset reaction turn off

                                toggledbitsT Offline
                                toggledbitsT Offline
                                toggledbits
                                wrote on last edited by
                                #18

                                @matteburk And the problem?

                                Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

                                1 Reply Last reply
                                0
                                • M Offline
                                  M Offline
                                  Matteburk
                                  wrote on last edited by
                                  #19

                                  The problem is when rule 2 is set and reset is delayed 600s rule 1 is being resetted by reset reaction in it and lights go of in 120 s instead of 600s as it should

                                  1 Reply Last reply
                                  0
                                  • CrilleC Crille

                                    @matteburk I would still put condition "natt"/"dag" and "kväll" in Constraints as it's not a trigger, rather a condition and would prevent Reaction/Reset Reaction to run.

                                    Edit: Clarification for future readers. Forcing the Constraints condition to go FALSE prevents the SET/Reset Reaction to run.

                                    M Offline
                                    M Offline
                                    Matteburk
                                    wrote on last edited by
                                    #20

                                    @crille I know. that's how I normally think but I have tried this to get around my problem.... 🙂

                                    1 Reply Last reply
                                    0
                                    • LibraSunL Offline
                                      LibraSunL Offline
                                      LibraSun
                                      wrote on last edited by LibraSun
                                      #21

                                      I have a strong suspicion that both of your rules are running simultaneously because they are reacting to very (overly?) similar conditions. That is, when the light is increasing from Off to 100%, it passes 20% and may thereby trigger Rule 1.
                                      You could include a Restriction on that Condition such that the dimming level "Must be sustained for at least 4 seconds" or so.

                                      toggledbitsT 1 Reply Last reply
                                      0
                                      • CrilleC Offline
                                        CrilleC Offline
                                        Crille
                                        wrote on last edited by
                                        #22

                                        What I'm trying to explain is a condition for Rule 1 to NOT run the SET action by setting Constraints according to the opposite of Rule 2 so they won't run simultaneous as both are triggered by the motion sensors.

                                        1 Reply Last reply
                                        1
                                        • LibraSunL LibraSun

                                          I have a strong suspicion that both of your rules are running simultaneously because they are reacting to very (overly?) similar conditions. That is, when the light is increasing from Off to 100%, it passes 20% and may thereby trigger Rule 1.
                                          You could include a Restriction on that Condition such that the dimming level "Must be sustained for at least 4 seconds" or so.

                                          toggledbitsT Offline
                                          toggledbitsT Offline
                                          toggledbits
                                          wrote on last edited by
                                          #23

                                          @librasun said in Can someone explain for me how to use Reset reaction in MSR without disturbing other rules.:

                                          when the light is increasing from Off to 100%, it passes 20% and may thereby trigger Rule 1

                                          Yeah, but Rule 1 doesn't say that. Rule one seems to be triggered exclusively by the motion sensors, and as posted (screen shot) potentially by a change in mode if a motion sensor is active at the same time (moving the mode check to Constraints solves this).

                                          I would not expect the RESET reaction to run in this case, but I'm also not watching the state of these rules. This might a case where putting both of these rules into the Scope and watching their state interact with each other would be educational. If anything is triggering rule 1, that would be obvious there (also looking just in the status view for the rule at a changing timestamp). But I don't see why the reset would run for rule 1, and I'm off to do some code review and see if I can back into reason...

                                          Author of Multi-system Reactor and Reactor, DelayLight, Switchboard, and about a dozen other plugins that run on Vera and openLuup.

                                          M 1 Reply Last reply
                                          1
                                          Reply
                                          • Reply as topic
                                          Log in to reply
                                          • Oldest to Newest
                                          • Newest to Oldest
                                          • Most Votes


                                          Recent Topics

                                          • [Reactor] Bug when sending MQTT boolean payloads
                                            toggledbitsT
                                            toggledbits
                                            0
                                            2
                                            58

                                          • Genuinely impressed with Zigbee and HA / Reactor
                                            CatmanV2C
                                            CatmanV2
                                            1
                                            7
                                            218

                                          • Difficulty defining repeating annual period
                                            G
                                            gwp1
                                            0
                                            5
                                            36

                                          • Need help with sequence
                                            therealdbT
                                            therealdb
                                            0
                                            3
                                            22

                                          • Possible feature request?
                                            therealdbT
                                            therealdb
                                            0
                                            5
                                            120

                                          • Copying a global reaction
                                            tunnusT
                                            tunnus
                                            0
                                            1
                                            36

                                          • Logic Assistance: Exterior Lights on when Illuminance Below Threshold
                                            CatmanV2C
                                            CatmanV2
                                            0
                                            11
                                            291

                                          • Time series documentation
                                            tunnusT
                                            tunnus
                                            0
                                            11
                                            377

                                          • Tuya Wifi to Tasmota flashing
                                            CatmanV2C
                                            CatmanV2
                                            0
                                            1
                                            83

                                          • MQTT templates for ZIgbee scene controller, or a better way?
                                            CatmanV2C
                                            CatmanV2
                                            0
                                            3
                                            144

                                          • Reset a delay
                                            CatmanV2C
                                            CatmanV2
                                            0
                                            8
                                            201

                                          • Zigbee2mqtt installed! sytemctl not happy :(
                                            CatmanV2C
                                            CatmanV2
                                            0
                                            4
                                            174
                                          Powered by NodeBB | Contributors
                                          Hosted freely by 10RUPTiV - Solutions Technologiques | Contact us
                                          • Login

                                          • Don't have an account? Register

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular
                                          • Unsolved