Draw a line. Then cut.
Rotate an everyday object, drag across it and press “Cut”. The pieces move apart and reveal their proportions. You can redraw the line before cutting.
The game measures model volume, not length or screen area. A cut that looks central from the front may be uneven behind it. Materials do not have different weight values.
Four ways to play
- Half Battle
- Aim for 50 : 50 against an opponent record for the same object.
- Not-Half Battle · HARD
- Match 20 : 80, 30 : 70 or 40 : 60. Either side may be the smaller piece.
- One-Look Bantting
- Rotate for five seconds. The final viewing angle then locks; draw a 50 : 50 cut from that view.
- Daily Bantting
- Cut the same three daily objects and compare your average error with the current world best. There is no standard match opponent.
Smaller error is better
A perfect 50 : 50 has 0% error. A 55 : 45 split has 10% error: the difference between both volumes. Not-Half sums both deviations from the target. A 35 : 65 cut against 30 : 70 also has 10% error.
Display and match decisions use the same 0.1% unit. Equal errors draw in ordinary matches. You can register a daily nickname only with an average strictly better than the existing best.
One daily attempt
Daily Bantting allows one attempt per browser guest. The day changes at 00:00 Korea time. After all three cuts, you see your average and the current best. If none has been registered, the game says so.
Guest cookies cannot prove that different browsers or cleared-cookie sessions belong to the same person. This is not an account or verified-device restriction.