🎒 Grade Practice Set

Grade 8 Logic & Thinking Practice Games

18 free logic and thinking games for Grade 8. Practice deduction, pattern logic, equation balance, and strategic reasoning with ad-free classroom and home activities.

18 matched games Ages 13–14 No login

Practice Path

Start with the most visual game first and watch whether the student can complete the logic and thinking task reliably. Then move into faster or more strategic games.

Keep each practice block to 8 to 12 minutes. Short rounds preserve attention and make it easier for a teacher or parent to spot which problem types need written follow-up.

Games on This Page

Cause or Coincidence? game cover illustration

Cause or Coincidence?

Classify evidence in fictional data cases, choose a reason, and rewrite an overstated causal headline

8 Queens Puzzle game cover illustration

8 Queens Puzzle

Place 4, 6, or 8 non-attacking queens on a chessboard with conflict rays and step-by-step logic

Killer Sudoku game cover illustration

Killer Sudoku

Solve uniquely generated daily puzzles with cage sums, Sudoku constraints, and candidate notes

Kakuro Sum Grid game cover illustration

Kakuro Sum Grid

Fill non-repeating digits so every across and down run reaches its sum

Minesweeper Number Logic game cover illustration

Minesweeper Number Logic

Use neighboring counts to clear beginner-friendly no-guess boards

Binary Grid game cover illustration

Binary Grid

Balance zeros and ones with no triples or duplicate rows and columns

Number Bridges game cover illustration

Number Bridges

Connect numbered islands with non-crossing bridges into one network

Loop Logic game cover illustration

Loop Logic

Draw one unbranched closed loop from numeric edge clues

Tower Transfer game cover illustration

Tower Transfer

Transfer ordered disks legally and match the minimum move count

Dots and Boxes game cover illustration

Dots and Boxes

Claim edges, complete boxes for extra turns, and control the endgame chain

Mancala game cover illustration

Mancala

Sow stones under Kalah rules, earn extra turns, and plan opposite-pit captures

Lowest Unique Number game cover illustration

Lowest Unique Number

Choose in secret, eliminate repeats, and win with the lowest unique number

20 Number Challenge game cover illustration

20 Number Challenge

Place unknown numbers in 20 permanent slots, or choose the classic 15-slot track. Play daily or unlimited.

21 & Take-Away game cover illustration

21 & Take-Away

Choose 1–3 each turn in two strategy modes: avoid 21 or take the final counter

Sum 31 Grid game cover illustration

Sum 31 Grid

Swap 25 number cards until all five rows and all five columns total 31

Attribute Trio game cover illustration

Attribute Trio

Find three original attribute cards where every feature is all same or all different

Sprout Lines game cover illustration

Sprout Lines

Play a straight-line Sprouts variant without crossings, overlaps, or degree violations

What’s My Rule? game cover illustration

What’s My Rule?

Test numbers, collect yes-or-no evidence, and identify the hidden mathematical rule

🤔Logic & Thinking

Cause or Coincidence?8 Queens Puzzle Killer Sudoku Kakuro Sum Grid Minesweeper Number Logic Binary Grid Number Bridges Loop Logic Tower Transfer Dots and Boxes Mancala Lowest Unique Number 20 Number Challenge 21 & Take-Away Sum 31 Grid Attribute Trio Sprout Lines What’s My Rule?