Make Ten

Drag a box over number pebbles that add up to exactly 10 and wash them away. Chain clears for combos before the clock runs out.

Make Ten

A quick arithmetic puzzle in a glowing tide pool. Drag a box over the number pebbles; if the pebbles inside add up to exactly 10, they wash away. Clear as many as you can before the clock runs out.

How to play

1. Pick a difficulty and press Dive in.
2. Press on a pebble and drag to the opposite corner. The box snaps to the pebbles and shows its total

as you drag; the total turns green at exactly 10.

1. Let go on 10 and every pebble in the box is cleared. Empty spaces count as 0, so a box can reach

across gaps left by earlier clears.

1. Any other total does nothing and costs nothing. Keep going until the time is up.

If no box of ten is left anywhere on the board, the round ends early and the seconds you saved become points.

The board

• 112 pebbles on a 14 × 8 board (8 × 14 on a tall screen such as a phone held upright).
• Pebbles that make ten together share a colour family: pale 1 with deep 9, pale 2 with deep 8, pale 3

with deep 7, pale 4 with deep 6, and lilac 5 with another 5.

• Every board is generated from a random seed and then measured by a solver. A board is dealt only if

the solver can clear a set amount of it (68 to 76 pebbles on Normal, 48 to 56 on Hard), so every round offers a similar amount of play. The pool code on the result screen names the seed.

• The digits on the whole board always add up to a multiple of 10.

Difficulties

Normal, Hard

Time, 100 seconds, 80 seconds

Digits, 1 to 9, evenly mixed, 7, 8 and 9 turn up almost twice as often as 1 and 2

Low-tide mark, 80 pebbles cleared, 60 pebbles cleared

Points, ×1, ×1.5

Normal and Hard have separate leaderboards.

Score

• 1 point for every pebble cleared.
• Combo: clear again within 3 seconds of the last clear and the combo grows. The second clear in a

combo adds +1 point, the third +2, and every clear after that +3.

• Low tide: +15 points once, the moment you reach the low-tide mark (80 pebbles on Normal, 60 on

Hard).

• Tide out: if no box of ten is left before the time is up, +1 point for every whole second left.
• On Hard, the total is multiplied by 1.5 and rounded.

The result screen shows each part of your score, your best combo and the best score on this device.

Controls

Action, Mouse and touch, Keyboard

Draw a box, Press on a pebble and drag, Arrow keys move the corner, Shift + arrow keys stretch the box

Clear the box, Let go, Enter or Space

Pause, Pause button, Esc or P

The game pauses when its window loses focus, and the pebbles are hidden while it is paused. Sound, reduced motion and the interface language (English, Korean, Japanese, Chinese) can be changed at the top of the game.

Tip

Look for pairs first: a pale pebble right next to its deep partner is a free clear. Save the 1s, they fit into almost any box.