---
title: "Concentration"
id: 12225
type: "product"
slug: "concentration-2"
url: "http://localhost/product/concentration-2/"
markdown_url: "http://localhost/product/concentration-2.md"
published_at: "2019-11-30T01:31:50+00:00"
modified_at: "2026-03-22T13:34:17+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2020/10/Concentration-IPS.jpg"
excerpt: "Concentration: 3 ways to play; match numbers, shapes, or patterns with a friend or the computer. Word Challenge: Modeled after the famous word game Boggle; up to 6 players. Number Challenge: How many numbers can you recall ... backwards? 3 levels; up to 6 players against the computer. 16K"
category:
  - name: "Games"
    slug: "games"
    taxonomy: "category"
    url: "http://localhost/category/software/games/"
post_tag:
  - name: "Gladstone Electronics"
    slug: "gladstone-electronics"
    taxonomy: "post_tag"
    url: "http://localhost/tag/gladstone-electronics/"
  - name: "International Publishing & Software Inc"
    slug: "international-publishing-software-inc"
    taxonomy: "post_tag"
    url: "http://localhost/tag/international-publishing-software-inc/"
  - 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: 10960
  title: "International Publishing & Software Inc"
  type: "company"
  url: "http://localhost/company/international-publishing-software-inc/"
price: 14.95
date: 1983
rarity: "Uncommon"
producturl: "http://www.zx81stuff.org.uk/zx81/tape/Concentration"
articles:
  - article:
      id: 24412
      title: "Enjoying Your Computer: Games"
      type: "article"
      url: "http://localhost/article/enjoying-your-computer-games/"
  - article:
      id: 20258
      title: "Shopper’s Guide: Software"
      type: "article"
      url: "http://localhost/article/shoppers-guide-software/"
companies_products:
  - id: 10902
    title: "Gladstone Electronics"
    type: "company"
    url: "http://localhost/company/gladstone-electronics/"
  - id: 10960
    title: "International Publishing & Software Inc"
    type: "company"
    url: "http://localhost/company/international-publishing-software-inc/"
---

# Concentration

Concentration: 3 ways to play; match numbers, shapes, or patterns with a friend or the computer. Word Challenge: Modeled after the famous word game Boggle; up to 6 players. Number Challenge: How many numbers can you recall … backwards? 3 levels; up to 6 players against the computer. 16K