দাবা সুডোকু
- যুক্তি ও বাদ দেওয়া
- Ages 7 and up
- About 8 minutes
The story behind it
Number-place puzzles became a craze around the world in the 2000s. Ours swaps the digits for chess pieces, and the thinking stays the same: you never guess. You ask, “what can this square NOT be?” until only one answer is left.
Read the full story: The first queen of chess →How to play
- Tap an empty square, then tap a piece to put it there.
- No piece may repeat in a row, a column or a box.
- Red squares clash. A hint costs a star.
Levels
For teachers and coaches
Chess sudoku — Logic and elimination
Ages 7 and up · about 8 minutes · 8by8verse Chess Lab
What it teaches
Deduction by elimination; holding several constraints at once.
The story to tell first
Number-place puzzles became a craze around the world in the 2000s. Ours swaps the digits for chess pieces, and the thinking stays the same: you never guess. You ask, “what can this square NOT be?” until only one answer is left.
Three questions to ask
- Which square did you fill first, and how were you sure?
- What is the difference between guessing and knowing?
- Could a grid like this have two right answers? How would you check?
Without a screen
Draw a four-by-four grid on the board with five clues and solve it aloud as a class, saying the reason for every square.
পরবর্তী
Finish
Hint
Step back
Start again
Play again
Next level
Back to the lab
Right.
Not quite.
Not yet — have another go.
Question {n} of {total}
{right} out of {total} right.
Three stars. Clean work.
Two stars. Well played.
One star. Level done.
king
queen
rook
bishop
knight
pawn
Rub out
Tap an empty square first.
Two of the same piece are sharing a row, a column or a box.
Every row, column and box holds each piece once.