Overlap Circuit 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.
Search reference and original circuit demo
VD89 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.
Overlap Circuit 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.
Independent 24-permutation checks
An independent integer-mask oracle checks all 24 permutations of the four block positions for each of the 4,096 words. It agrees with the actual source, which checks six orders with the first position fixed because rotations do not change a closed ring. All 4,095 nonterminal conditional-price nodes are verified.
Six million actual-source rounds test manual stopping and all five Auto thresholds. This checks the original demo’s specified probability model, not a production RNG audit, licence, safe app, verified business identity or financial reliability.
Four distinct positions and any closed ordering
Twelve independent fair bits form four consecutive three-bit blocks. The entire twelve-bit outcome is sampled once and revealed automatically, one bit per step. Each block has three bits, not twelve. Players do not choose bits or arrange the blocks manually.
Terminal raw reward is one if some permutation of all four block positions forms a closed directed ring: every block’s final two bits match its successor’s first two bits, including the closing link. Otherwise reward is zero. Equal-valued blocks remain distinct positions and each position must be used once. This is an existence test, not a count of matching links or valid orders.
80 successful complete words and conditional quote
Exactly 80 of the 4,096 equally likely complete words satisfy the ring test. Initial mean raw reward is 80/4,096 = 0.01953125. Quote = 0.97 × exact conditional expected terminal reward / that mean. It uses revealed bits and every possible hidden suffix; no hidden future bit enters the visible quote. It starts at 0.97× and may rise, fall or reach zero.
The expected gross return is 97% for policies based only on revealed information in this fair model, not a 97% win chance, optimal puzzle skill or guaranteed session result. Zero ends immediately. A positive final quote settles automatically. A successful complete word quotes 49.664×. No second 3% factor is applied.
Frequently asked questions
Does the name establish an operator?
VD89 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. Overlap Circuit 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.
Must the original block order work?
Twelve independent fair bits form four consecutive three-bit blocks. The entire twelve-bit outcome is sampled once and revealed automatically, one bit per step. Each block has three bits, not twelve. Players do not choose bits or arrange the blocks manually. Terminal raw reward is one if some permutation of all four block positions forms a closed directed ring: every block’s final two bits match its successor’s first two bits, including the closing link. Otherwise reward is zero. Equal-valued blocks remain distinct positions and each position must be used once. This is an existence test, not a count of matching links or valid orders.
How is the quote priced?
Exactly 80 of the 4,096 equally likely complete words satisfy the ring test. Initial mean raw reward is 80/4,096 = 0.01953125. Quote = 0.97 × exact conditional expected terminal reward / that mean. It uses revealed bits and every possible hidden suffix; no hidden future bit enters the visible quote. It starts at 0.97× and may rise, fall or reach zero. The expected gross return is 97% for policies based only on revealed information in this fair model, not a 97% win chance, optimal puzzle skill or guaranteed session result. Zero ends immediately. A positive final quote settles automatically. A successful complete word quotes 49.664×. No second 3% factor is applied.
Read the circuit rules and try the original free demo. Play the free demo
