How to Play Box Count
Box Count is a Kawashima-style memory duel: a grid of stacked cubes flashes on screen, then vanishes — whoever counts the total fastest and most accurately wins the round.
▶ Play Box Count now — free, 2 players
How to play
- A 6×6 grid flashes with stacks of isometric cubes for a few seconds, then they vanish.
- Both players use +1/−1 to enter how many total cubes they saw, counting hidden cubes buried under taller stacks.
- Press Done. The first player to lock in the correct count wins the round; a wrong Done locks you out until the round ends.
- First to 3 round wins takes the match.
Tips to win
- Count stacks, not cubes you can see — a tall stack hides cubes underneath it. A height-3 stack is worth 3, even though only its top face is visible.
- Scan in rows, not randomly — sweep the grid left-to-right, top-to-bottom so you don't double-count or skip a stack.
- Don't rush Done — a wrong guess locks you out for the whole round, so a half-second of doubt is cheaper than an early miss.
- Group stacks by height as you scan (how many singles, how many doubles, how many triples) and add the groups at the end — it's faster and more accurate than a running tally.
FAQ
Do hidden cubes really count?
Yes — a stack of height 3 counts as 3 cubes even though you only see the top one. That's the classic Kawashima-style trick: count the stack, not just the visible face.
What happens if I guess wrong?
A wrong Done locks you out for the rest of that round (you'll see an ✗), but your opponent can still answer. If both players lock in wrong, or the 12-second timer runs out, the round is a draw and nobody scores.
Is Box Count good for memory training?
Yes. It's inspired by classic brain-training box-counting drills — quick visual memorization plus mental arithmetic under time pressure.