---
title: "ZX-Concentration"
id: 14752
type: "product"
slug: "zx-concentration"
url: "http://localhost/product/zx-concentration/"
markdown_url: "http://localhost/product/zx-concentration.md"
published_at: "2019-11-30T01:19:56+00:00"
modified_at: "2026-03-22T13:39:11+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Find more of the 18 pairs of letters hidden on an 8x8 board by observing the reactions of laser beams fired into the box. Both the board and all the rays are displayed at all times. 16K."
category:
  - name: "Games"
    slug: "games"
    taxonomy: "category"
    url: "http://localhost/category/software/games/"
post_tag:
  - name: "Haymarket Software Co."
    slug: "haymarket-software-co"
    taxonomy: "post_tag"
    url: "http://localhost/tag/haymarket-software-co/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
genre:
  - name: "Game"
    slug: "game"
    taxonomy: "genre"
    url: "http://localhost/type/game/"
  - name: "Software"
    slug: "software"
    taxonomy: "genre"
    url: "http://localhost/type/software/"
company:
  id: 10926
  title: "Haymarket Software Co."
  type: "company"
  url: "http://localhost/company/haymarket-software-co/"
price: 8.95
date: 1982
rarity: "Uncommon"
articles:
  - article:
      id: 24412
      title: "Enjoying Your Computer: Games"
      type: "article"
      url: "http://localhost/article/enjoying-your-computer-games/"
adverts:
  - publication:
      - id: 26645
        title: "SYNC v2 n5"
        type: "issue"
        url: "http://localhost/issue/sync-v2-n5/"
    advert_page: "60"
companies_products:
  - id: 10926
    title: "Haymarket Software Co."
    type: "company"
    url: "http://localhost/company/haymarket-software-co/"
---

# ZX-Concentration

Find more of the 18 pairs of letters hidden on an 8×8 board by observing the reactions of laser beams fired into the box. Both the board and all the rays are displayed at all times. 16K.