Your first Pips puzzle.
The goal is simple: place every domino, fill every cell, and satisfy every region’s rule. The fun is discovering how those three things fit together.
1. Meet the dominoes
Each domino has two halves. Each half shows a value from zero to six; a blank half is zero. A domino always covers two cells that share an edge. It cannot bend, sit diagonally or cover another domino.
You must use every supplied domino exactly once. The tray may include two pieces with the same values; they are still two separate pieces.
2. Select, rotate, place
Tap a domino in the tray to turn it a quarter turn clockwise. Keep tapping to turn it again: horizontal, vertical, or either way around. Each domino keeps its own direction, including after a refresh.
Drag the domino onto the board, or tap the cell where its first half should go. A preview shows both halves before you place it with a mouse or keyboard. For keyboard play, Tab reaches the controls, Enter or Space activates them, arrow keys move between board cells, and R rotates a selected domino. Escape deselects it.
Tap either half of a placed domino to select it. Drag either half to move it, use Rotate to turn around its first half, or choose Return to put it back in the tray. A move that does not fit leaves the piece in place. Undo restores both position and direction.
3. Read the colored regions
Every cell belongs to a labeled region. A number means the pips in that region must add up to that total. An equals sign means every cell has the same value; it does not specify which value.
The region follows the cells, not the whole domino. If a 2–5 domino crosses two regions, the first region receives 2 and the second receives 5.
A two-cell region with clue 7 accepts 1 + 6, 2 + 5, or 3 + 4. The pieces available and their other halves determine which arrangement fits the rest of the board.
4. Watch the feedback
A check mark means a region is full and satisfies its rule. An exclamation mark means its current values already conflict with the condition. An unfinished region can remain open even if a later move will prove impossible.
The game checks the whole board when you place the final domino. Any complete arrangement that satisfies all clues wins. There is no hidden placement you have to copy.
5. Take a hint when you need one
Hint highlights a region. Explain shows which candidates fail and why. Show move reveals the suggested placement, and Place move applies it. The coach labels deductions that are forced separately from choices among several valid continuations.
Reveal solution ends the puzzle as practice. It is useful for learning, but does not count as a win or extend your daily streak. Your active playing time pauses when the tab is hidden.