Clearance Grid is an original browser simulator with free virtual coins and no cash redemption. Its mathematical checks apply to this demo only. They do not authenticate an outside company or demonstrate that any commercial game has the same rules.
Browser demo without an APK
This original demo runs in the browser. No APK, installation, update or publisher account is needed. The guide does not authenticate an outside 57BD package or provide a verified download. A filename, matching logo or scan result does not establish its publisher or safety.
The mathematical checks concern the simulator only. No instruction to enable unknown-source installation or disable device protection is provided.
Search reference and original circuit demo
57BD is a search reference in this independent guide. It does not establish a verified publisher, official domain, licence, app, support channel or payment service. The guide does not authenticate an outside operator or conclude that absence from an unspecified list proves fraud.
Clearance Grid is an original browser simulator with free virtual coins and no cash redemption. Its mathematical checks apply to this demo only. They do not authenticate an outside company or demonstrate that any commercial game has the same rules.
Three rows, four columns and maximum selection
Twelve independent fair bits fill a board of three rows and four columns, in row-major order. One is occupied, zero empty. Sample the entire hidden board once, then reveal one cell automatically per step. The player does not choose cells or solve the selection.
Terminal raw reward is the maximum number of occupied cells selectable with no pair sharing a horizontal or vertical side. Diagonal neighbours are allowed. Empty cells cannot be selected. The engine finds an actual maximum automatically; a smaller valid selection does not establish the maximum. This is not the number of occupied cells or connected groups.
Collection and unreachable high Auto thresholds
Before starting choose stake 10, 20, 50 or 100 and Manual or Auto threshold 1.2×, 1.5×, 2×, 3× or 5×. One stake and these settings are captured. Settings and refill lock while active. Auto is a collection threshold, not repeated play. Reduced motion changes timing only.
Manual Collect first processes reveals due at the current timestamp. An earlier Auto crossing pays its full actual quote before later events. Zero before a crossing loses. The largest possible quote is about 1.515301×: Auto2×,3× and5× cannot trigger. These still wait for automatic final positive settlement rather than lose solely because the threshold was not reached.
Manual refill below ten coins
A new local wallet starts at 1,000 free coins. The balance and fractional payout carry are stored in this browser’s localStorage. Whole coins are credited from each payout while its fractional remainder carries forward. They have no cash value.
Refill is manual and available only while idle with a balance below 10. It sets the balance to 1,000 rather than adding 1,000, and preserves fractional carry. It is neither a timed refill nor a reset available during a round. No promo code or deposit is involved.
Local storage and network requests
LocalStorage holds the demo balance and fractional carry. The page also makes network requests for Google Fonts and Statinside analytics, and its server can receive request information such as IP address and browser details. A local wallet does not mean all activity stays on this device.
This guide does not establish the third parties’ retention periods, cookie behaviour, anonymity, advertising profiles or data-sale practices. The game has no login or identity-upload control. Do not submit passwords or identification to an unrelated page because it uses a similar name.
Independent row-mask dynamic programming
Independent row-mask dynamic programming checks the maximum for all 4,096 boards against the actual source’s exhaustive side-separated selections. It also checks all 4,095 nonterminal conditional nodes. Six million actual-source rounds cover manual stopping and all five Auto thresholds.
This verifies original-demo arithmetic in the specified fair model. It does not certify a commercial RNG, outside app, company, licence, payment service, local legal permission or clinical benefit.
Frequently asked questions
Does the name establish an operator?
57BD is a search reference in this independent guide. It does not establish a verified publisher, official domain, licence, app, support channel or payment service. The guide does not authenticate an outside operator or conclude that absence from an unspecified list proves fraud. Clearance Grid is an original browser simulator with free virtual coins and no cash redemption. Its mathematical checks apply to this demo only. They do not authenticate an outside company or demonstrate that any commercial game has the same rules.
Do I choose the maximum cells?
Twelve independent fair bits fill a board of three rows and four columns, in row-major order. One is occupied, zero empty. Sample the entire hidden board once, then reveal one cell automatically per step. The player does not choose cells or solve the selection. Terminal raw reward is the maximum number of occupied cells selectable with no pair sharing a horizontal or vertical side. Diagonal neighbours are allowed. Empty cells cannot be selected. The engine finds an actual maximum automatically; a smaller valid selection does not establish the maximum. This is not the number of occupied cells or connected groups.
How is the quote priced?
The initial mean reward is 3.8408203125 over all 4,096 equally likely boards. Quote = 0.97 × exact conditional expected terminal maximum / this initial mean. It includes every hidden suffix, not just the maximum of currently visible cells. It starts at 0.97× and may rise or fall. Expected gross return is 97% for policies using only revealed information in this fair model, not a win probability, guaranteed balance or a reward for player selection skill. Zero ends immediately. Only the empty complete board has terminal reward zero; a positive final quote settles automatically. Gross return includes returned stake, without another 3% factor.
Are diagonal neighbours allowed?
An empty board rewards zero. A full three-by-four board rewards six: either checkerboard colour gives six nonadjacent cells. The grid can be partitioned into six disjoint neighbouring pairs, so a selection can contain at most six. Two occupied diagonal neighbours may both be selected; two occupied side neighbours allow at most one. Across all 4,096 boards, maxima 0 through 6 occur 1, 29, 281, 1,105, 1,701, 852 and 127 times. A new occupied cell cannot lower the visible maximum, but the conditional quote may fall when a newly revealed cell is empty. Visible cells alone do not give the complete-board expectation.
Can Auto2× trigger?
Before starting choose stake 10, 20, 50 or 100 and Manual or Auto threshold 1.2×, 1.5×, 2×, 3× or 5×. One stake and these settings are captured. Settings and refill lock while active. Auto is a collection threshold, not repeated play. Reduced motion changes timing only. Manual Collect first processes reveals due at the current timestamp. An earlier Auto crossing pays its full actual quote before later events. Zero before a crossing loses. The largest possible quote is about 1.515301×: Auto2×,3× and5× cannot trigger. These still wait for automatic final positive settlement rather than lose solely because the threshold was not reached.
Read the clearance rules and try the original free demo. Play the free demo
