Sand Blocks level guide
Sand Blocks: Drop Puzzle Level 306 Walkthrough
Level 306 steps its r6 band in at c1-c2 and c6-c7, and runs four numbered bars at once: cyan 11 and red 6 across r1, pink 21 and blue 16 across r7. The c4 gold gate has to step 3 to 0 before the striped shaft opens the lower chamber.
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How to Solve Sand Blocks Level 306 — Full Solution
- Let the opening run untouched: the yellow 1x1 at r2c2 already reads 100% on the opening frame and clears from the yellow tube inside the first second, but none of the four bars move for the first four seconds.
- Hold until t=4.5s, when the whole board steps together: cyan 11 to 10, red 6 to 5, pink 21 to 20, blue 16 to 15 and the c4 badge 3 to 2. At t=5.0s they step again to 9 and 4 and 20 and 15 with the badge at 1, and at t=6.0s the r1 bars reach 8 and 3 and the badge is gone.
- Watch the gate open: the badge disappears by t=6.0s, the purple ribbed core is replaced by a gold striped auger by t=6.5s, and a star cap appears on the gold frame at the same moment.
- Lift the c1 stack from the top: a white drag highlight appears over r2c1 at t=5.0s, and each relocation leaves the cell behind it dark; by t=22s the c1 column is down to the r4c1 red and the r5c1 cyan.
- Clear c3 top-down - red 1x1 r2c3, then yellow 1x1 r3c3 - to expose the green vertical at r4-r5 c3, and hold that footprint until it reaches 100% because it is the only green contact under the yellow tube.
- Drain the r1 bars with the upper chamber: the red bar reaches 0 at about t=27-28s while the cyan bar still reads 5, and the cyan bar runs 4 at t=35-40s, 3 at t=45s, 2 at t=50s and 1 at t=51-52s before clearing between t=52s and t=53s, after which all three top tubes lose their colour.
- Empty the r7 bars through their own side tubes: the pink bar reads 13 at t=50s, 11 at t=52s, 8 at t=54s, 6 at t=56s and 3 at t=58-60s, holds at 2 from t=62s to t=68s and clears around t=70s, while the blue bar reads 8 at t=50s, 6 at t=52s, 3 at t=54s and 1 at t=56s and is already empty by t=58s.
- Fill the lower chamber left to right: blue vertical r8-r10 c1, green vertical r8-r10 c2, then the c3 alternation yellow r7c3, cyan r8c3, yellow r9c3, cyan r10c3, keeping the c4 striped shaft and its r10c4 star box clear.
- Finish on the right with the red horizontal r8c6-r8c7, the blue 2x2 r9-r10 c6-c7 and the magenta vertical r8-r10 c5; the green vertical at c2 is the last receiver on the board and it clears at about t=83.5s, with the SAND BLOCKS card at t=84s.
Colors in this level:
Red, Yellow, Green, Cyan, Blue, Purple, Magenta, Pink, Orange
Common Mistakes to Avoid
- Leaving a red or yellow 1x1 in r4c1 or r5c1, which covers the only cyan contact in the upper chamber and freezes the cyan bar at 8.
- Dragging a receiver before the c4 badge has finished stepping 3 to 0, so the purple gate core is still closed and nothing can pass into the lower chamber.
- Sliding the r5c5 magenta 1x1 down into r6c5 or r7c5, which blocks the blue vertical that feeds the r7 blue bar.
Quick Tips for Sand Blocks Level 306 (quick clues)
- Watch two numbers, not four: cyan minus red is always 5, and pink minus blue is 5 until the blue bar clears first at about t=58s.
- Do not drag anything until the c4 badge has finished stepping 3 to 0, or the gate core is still purple and the shaft is closed.
- Empty the c1 red stack from the top down so the r5c1 cyan receiver keeps its contact.
Board notes 5 details
- Layout
- A 7-column by 10-row grid (r1 top) with r6 present only at c3-c5. Cyan bar r1c3-c5 reads 11, red bar r1c6-c7 reads 6, pink bar r7c1-c2 reads 21, blue bar r7c6-c7 reads 16. The c4 gate has a purple ribbed core r2-r4 and a gold badge at r3c4 reading 3; the gold frame gains a star cap at t=6.5s, when the core becomes a striped auger. Green tube over c1, yellow over c2, red over c6-c7; magenta and blue side tubes enter r7 from the left and right edges.
- Goal
- Clear the unaided yellow r2c2 receiver first, step the c4 gate 3 to 0 to open the central shaft, then empty the cyan 11 and red 6 bars before the pink 21 and blue 16 bars, and finish on the green vertical r8-r10 c2 and the blue 2x2 r9-r10 c6-c7.
- Opening
- Nothing on the four bars moves for the first four seconds: cyan 11, red 6, pink 21 and blue 16 all hold from t=0 through t=4.0s. At t=4.5s they step together to 10, 5, 20 and 15 and the c4 badge steps 3 to 2; at t=5.0s they reach 9, 4, 20 and 15 with the badge at 1 and a white drag highlight over r2c1; at t=6.0s the r1 bars reach 8 and 3, the badge is gone, and the purple gate core turns into a gold striped auger under a new star cap.
- Danger Zone
- r5c1 is the only cyan 1x1 in the upper chamber and it sits directly on the r6 notch; a red or yellow 1x1 left in r4c1 or r5c1 covers the last cyan contact and freezes the cyan bar at 8 while red is already at 3. On the right, sliding the r5c5 magenta into r6c5 or r7c5 blocks the blue vertical that feeds the r7 blue bar.
- Mechanics
- Stepped board outline with r6 notched at c1-c2 and c6-c7, four numbered bars stepping together on the same clear events (cyan exactly 5 above red; pink 5 above blue until the blue bar empties first at about t=58s), the c4 gate whose 3-badge falls to nothing and whose core becomes a striped auger, and two side-fed bars at r7.
Frequently Asked Questions
Why do the four bars fall together?
Each chamber clear steps all of them at once. The cyan bar stays exactly 5 above the red bar, and the pink bar stays exactly 5 above the blue bar until the blue bar empties first at about t=58s, so the red bar at 0 means the cyan bar still has 5 clears to go.
What actually opens the c4 lane?
The gold badge at r3c4 counts 3, 2, 1 and is gone by t=6.0s; the purple ribbed core is then replaced by the gold striped auger under a star cap by t=6.5s, and c4 becomes the board's only uninterrupted route between the two chambers.
Which receiver is safe to ignore at the start?
The yellow 1x1 at r2c2 clears by itself on the yellow tube overflow - it already reads 100% on the opening frame - so the first real drag can wait until the c4 badge has settled.