Sand Blocks level guide
Sand Blocks: Drop Puzzle Level 307 Walkthrough
Level 307 hides its whole lower half under one gold-framed purple shutter whose badge steps 3 to 1 in the first seven seconds. Above it a movable pink checkered bar counts 16 down, and behind it sit a white 5 bar, a green 18 bar, two cyan bomb counters and a padlock that needs three keys.
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How to Solve Sand Blocks Level 307 — Full Solution
- Watch the shutter badge before dragging: it steps 3 to 2 at t=5.25-6.25s and 2 to 1 at t=6.5-7.25s, then holds at 1 until the shutter retracts between t=22.5s and t=30s.
- Clear the magenta 1x1 at r2c3 and the white/grey 1x1 at r2c4, let the magenta L at r2-r3 c5-c6 go, then re-seat the green 2x2 from r3-r4 c3-c4 to r2-r3 c3-c4 - it carries the white drag highlight at t=8s - and raise the cyan vertical at c2 with it.
- Re-grip the pink checkered bar (drag highlight at t=4s and t=10s) and slide it from c3-c4 onto c2-c3; it reads 16 at the opening, 15 at t=6s and 14 by t=8.5s.
- Hold until the shutter is gone at t=30s, then read the new lower chamber: white bar c1 r6-r8 at 5, green bar c7 r6-r8 at 18, pink bar at 13.
- Empty the two cyan bomb receivers on their own clocks - r2c7 between t=45s and t=60s, r5c7 between t=90s and t=105s - and take the plain receivers each one reveals.
- Drain the pink bar first (13 at t=30-45s, 10 at t=60s, 9 at t=75s, 4 at t=105s, 3 at t=120s, cleared by t=135s), then the white bar (5 through t=45s, 2 at t=60s, 1 at t=75s, white-filled at t=90s, gone at t=105s), then the green bar (18 through t=45s, 15, 14, 10, 9, 8, 6 and 5 at t=150s, cleared by t=162s).
- Fill the three purple key-marked receivers in the lower chamber - around c2 r8, c3 r10 and c5 r9-r10 - so each releases a key; the padlock badge at r3-r4 c6 steps 3 to 2 at t=165s and the lock is gone by t=166s.
- Spend the unlock on the teal receiver at r3-r4 c6, which then fills with green sand (drag highlight at t=166s, empty outlined box at t=168s); finish the red 1x1 and the red vertical at the top of the chamber, the latter reaching 100% at t=171s before the completion card at t=172.5s.
Colors in this level:
Magenta, White, Green, Cyan, Red, Brown, Purple, Pink, Orange, Yellow
Common Mistakes to Avoid
- Filling r3c7 or r4c7 with the green 1x1 before the keys are spent, which walls off the padlocked teal receiver and leaves its badge at 3.
- Parking the r4c1 red or r5c1 brown into r5c2, which covers the cyan vertical at c2 and freezes the pink bar at 14.
- Starting the r5c7 bomb receiver before the green 2x2 and cyan vertical above it have settled, so its five units are credited elsewhere.
Quick Tips for Sand Blocks Level 307 (quick clues)
- Read the three badges in the c6-c7 block as one instrument: 5, 5 and 3 at the start, 5, 5 and 2 once the first keys land.
- The pink checkered bar is movable, so slide it one column left early rather than waiting for sand to reach it.
- Keep r5c2 and r4c2 clear so the cyan vertical at c2 stays the upper chamber's only cyan contact.
Board notes 5 details
- Layout
- A 7-column by 11-row grid (r1 top) with a staircase left edge - r1 starts at c4, r2 at c3, r3 at c2, r4 at c1. A magenta tube feeds the pink chamber across r1 c4-c6. A gold-framed purple shutter covers r6-r11 with a badge on a central stalk. Upper chamber: magenta 1x1 r2c3, white 1x1 r2c4, magenta L r2-r3 c5-c6, cyan bomb receiver (5) r2c7, magenta 1x1 r3c2, green 2x2 r3-r4 c3-c4, padlocked teal receiver (3) r3-r4 c6, green 1x1 r3c7, red 1x1 r4c1, cyan vertical r4-r5 c2, brown vertical r4-r5 c5, brown 1x1 r5c1, pink checkered bar r5 c3-c4 reading 16, white 1x1 r5c6, cyan bomb receiver (5) r5c7.
- Goal
- Step the shutter badge 3 to 1 and let the shutter retract at about t=30s, drain the pink 16 bar, the white 5 bar and the green 18 bar, then collect three keys into the padlocked teal receiver at r3-r4 c6 and finish on the red receivers.
- Opening
- Clear the magenta 1x1 r2c3 and the white 1x1 r2c4, then re-seat the green 2x2 one row higher from r3-r4 c3-c4 to r2-r3 c3-c4 at t=8s. The pink checkered bar shows the drag highlight at t=4s and t=10s and moves from c3-c4 to c2-c3, reading 16, 15, 14.
- Danger Zone
- Filling r3c7 or r4c7 to make room for the green 1x1 walls off the padlocked teal receiver at r3-r4 c6, so the badge stays at 3 after the key receivers have emptied. On the left, parking the r4c1 red or the r5c1 brown into r5c2 covers the only cyan contact and freezes the pink bar at 14.
- Mechanics
- A single shutter gating the entire lower half, a movable checkered counter bar, two cyan bomb receivers that each clear on their five units (r2c7 between t=45-60s, r5c7 between t=90-105s), a padlock badge that counts 3 to 1, and three key-marked purple receivers that release the keys for it.
Frequently Asked Questions
What opens Level 307's lower half?
Nothing you drag - the gold-framed purple shutter retracts on its own between t=22.5s and t=30s once its central badge has stepped 3 to 2 to 1 in the first seven seconds.
Why is the padlock still at 3 late in the run?
One of the three purple key-marked receivers in the lower chamber has not been filled. The badge only steps 3 to 2 at t=165s, and the teal receiver behind the lock cannot take sand until it reaches 0.
Does the pink checkered bar stay put?
No. It starts across r5 c3-c4 reading 16 and is dragged one column left onto c2-c3, which is why its 13 at t=30-45s is read from a different cell than its 16 at the opening.