🔧 Step-by-Step Answer Walkthrough For Easy Level
The orange sum-2 cell in the bottom-left corner and the green sum-2 cell in the bottom-right each hold a single pip, and that pip can only be a 2. The tray carries precisely two 2s — on the 2/6 and the 2/3 — so both tiles are locked into the bottom row, and their partners must travel upward.
The green corner's 2 belongs to the 2/3, so that tile's other half, a 3, sits directly above it in the right-hand cell of the teal equals pair. The pair must match, so the cell to its left reads 3 as well, and the only tile that can deliver one from above is the 4/3 — 4 up in the top-right uncoloured square, 3 down into teal.
The pink equals pair at the centre of the board needs two matching pips, and the 2s and 3s are already spent, leaving 1 as the only repeated value. So the 1/0 stands with 1 in the pink pair's left cell and 0 in the purple less-2 cell above it; the 5/1 stands with 1 in the pink pair's right cell and 5 in the blue greater-2 cell below.
Only the 2/6 is left unplaced. It runs vertically on the left, 6 up in the uncoloured square and 2 down in the orange sum-2 corner — the final cell on the board, and the one that makes the whole bottom row agree with itself.
🔧 Step-by-Step Answer Walkthrough For Medium Level
The green sum-7 pair in the bottom-right corner is two vertically stacked cells, so a single tile covers both of them. Walk the tray: 2/0 is 2, 0/3 is 3, 2/3 is 5, 6/0 is 6, and both 2/6 and 4/4 are 8 — only the 1/6 makes exactly 7. Place it 1 in the upper cell and 6 in the lower.
The blue sum-4 square toward the bottom left must hold a 4, and the tray's only 4s are the two halves of the 4/4 double. It has to stand vertically with one 4 in the blue cell — and if it lay the other way, the purple greater-2 cell below the neighbouring square would be left with no partner at all. So it goes 4 up in the left uncoloured square and 4 down in blue.
The bottom purple greater-2 cell has two neighbours: the blue cell to its left, now taken, and the bottom uncoloured square above it. It must pair upward, and its pip has to be 3 or more. The 2/3 fits — 2 up in the uncoloured square, 3 down in the purple cell.
Both pink cells on the left edge are covered by one vertical domino, and their pips must add up to more than 7. With the 4/4 already spent, the only tile that clears the bar is the 2/6, which totals 8. It stands with 2 in the upper cell and 6 in the lower.
Six cells and three tiles remain: the 6/0, the 2/0 and the 0/3. The 6 cannot sit anywhere inside the purple less-4 block, so it lands in the centre uncoloured square with its 0 just above in the block's right-hand cell. Teal's less-1 square can only be a 0 and its only free neighbour is the orange less-3 cell below, so the 2/0 puts 0 up in teal and 2 down in orange. The 0/3 takes the last two cells at the top of the purple block: 0 in the highest one, 3 in the one beneath it.
🔧 Step-by-Step Answer Walkthrough For Hard Level
The blue sum-5 square in the very bottom-left corner has exactly one neighbour — the teal less-4 cell directly above it — so those two cells form a single domino. The lower half must be a 5 and the upper half must be under 4; the 5/3 is the only tile that does both, since the 5/5 would leave a 5 where a small pip is required. 5 in blue, 3 above in teal.
A single cell summing to 6 can only hold a 6, and the purple cell at the top has just one neighbour: the top-right cell of the green equals block. Only the 2/6 and the 6/1 carry a 6, and the 2/6 would push a 2 into the block — but the tray holds just three 2s, far short of four matching cells. So the 6/1 goes in, 6 up in purple and 1 down in green.
The block reads 1s throughout. Its top-left corner cell can only reach right, so the 1/1 double lies flat across that pair. The block's remaining cell reaches right into the teal greater-3 square, so its tile needs a 1 plus a pip above 3 — the 1/4 is the only candidate. 1 in the block, 4 in teal.
The column's top cell has the filled teal greater-3 square above it, so it must pair downward. At the bottom, the pink greater-4 cell has the filled teal less-4 square below it, so it must pair upward. That strands the column's third cell, whose only remaining neighbour is the orange equals block to its right — so it reaches sideways into the block.
Three block cells must match, and each of their dominoes also feeds a neighbour. Small pips are in heavy demand elsewhere — the orange less-2 pair needs two pips under 2, the purple sum-4 block needs a 0, a 1 and a 3 — so only the 4s have enough copies left to do the block's job. Play the 2/4 with 2 in the column and 4 in the block's top-left; the 4/4 flat across the block's top-right cell and the blue sum-7's left cell; the 4/0 with 4 in the block's bottom-left and 0 heading right into the purple sum-4 block.
The purple sum-4 block already owns a 0, so its last two cells want 1 and 3 — the 1/3 stands vertically, 1 up and 3 down. The blue sum-7 pair now has a 4 on its left, so its right cell must be a 3; the 0/3 lies flat, 3 on the left in blue and 0 on the right at the head of the green unequal column. The orange less-2 pair takes the 0/1 (0 up, 1 down), the unequal column's lower two cells take the 1/2 (1 above 2, keeping all three different), and the pink column closes with the 5/5 — 5 in the pink greater-4 cell, 5 in the column — and the 2/6, 2 up and 6 down, bringing the column total to 15.
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