Mahjong Dimensions: 640 seconds
Mahjong Dimensions: 640 seconds
Mahjong solitaire on a rotating cube, with 640 seconds on the clock. That is a little under eleven minutes, which puts it squarely between the fast version and the long one.
The middle setting is arguably the best of the three. Eight minutes forces you to take whatever you see. Fifteen lets you plan the whole board. Eleven gives you enough room to think about the order of your matches without ever letting you relax about the clock.
How to play Mahjong Dimensions: 640 seconds
- Tiles are stacked into a three dimensional block that rotates.
- Match two tiles showing the same face to remove the pair.
- A tile is selectable only when nothing is on top of it and one side is open.
- Drag to rotate the cube and reach the hidden faces.
- Clear everything before 640 seconds elapse.
What the extra time buys you
With eleven minutes you can afford roughly one planning pause per face. Use it on the first rotation of each side: look at what is stacked, decide which pair unlocks the most, and then clear without stopping.
What you still cannot afford is browsing. Turning the cube to see whether something better exists elsewhere is the habit that loses this version, exactly as it loses the faster one.
Chains
Consecutive matches score more than the same matches spread out. On this clock you have enough time to set up runs deliberately: spot three or four available pairs on one face, then take them in sequence rather than one at a time with pauses between.
Tips and strategy
Working the stack
- Clear from the top down. A tile removed from an upper layer frees several beneath it. One taken from an edge frees almost nothing.
- When three matching tiles are visible, take the pair that unlocks the most, not the pair that is easiest to reach. The third tile has to stay reachable.
- Rotate a quarter turn at a time. Full spins cost seconds and rarely reveal anything a quarter turn would not have.
Clock checkpoints
- At 320 seconds, half the board should be gone. If it is not, stop optimising and take any legal match.
- In the final ninety seconds, ignore the stack entirely. A board mostly cleared scores more than one carefully planned and unfinished.
Habits that cost you
- Treating eleven minutes as comfortable. It is enough to plan each face once, not to plan the board.
- Leaving the bottom layer for last. The tiles down there are the hardest to free and the easiest to run out of time on.
The tighter clock is Mahjong Dimensions: 470 seconds and the longest is Mahjong Dimensions: 900 seconds. More layouts are on the mahjong page.
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Frequently asked questions
How long is 640 seconds?
A little under eleven minutes, which sits between the 470 second and 900 second versions.
Is the board different from the other Dimensions games?
No. The cube and the rules are the same across the series. Only the time limit changes, and that is what changes how you should play.
When can a tile be matched?
When nothing is stacked on top of it and at least one of its sides is open.
Do consecutive matches score more?
Yes. Matches taken in quick succession are worth more than the same matches made with pauses between them.
Is it free?
Yes. Nothing to download, no account and no payment.