The billions of taxpayers money spent on campaign and directly to purchase votes, eg. coupons 1 week before election.

* many voters not allowed to vote (the registration system did not sent confirmation, neither allowed re-registration; and even many who succeeded after a week of telephoning, went for election, waited half day, but was not allowed to vote, eg. in London, they rejected while the voting in Budapest was still allowed.).

* extremely disproportional system made by Fidesz, for itself to allow stay in power with 60+ % against. Not even an election (severely violating Condorcet criteria):

** 41056 votes resulted in 1 Fidesz mandate, while 91135 votes for the 2nd party resulted in 1 mandate. Call that election law a fraud ?

* [dozens of different cheats applied simultaneously] (Hungarian)

* [explaining some of the cheats in the election law: video] (Hungarian)

* [Negative number of votes after 18:30] (Hungarian)

** with the lucky combination of mass-unsatisfaction with the government, and very good weather, the election fraud can be proven mathematically (note that this is extremely rare, usually it requires oral evidence from hundreds or thousands of people - who might be lying). The criminals simply were not fully prepared for this combination: professionally manipulated the vote data, but started to manipulate the midday ("how many citizens have voted") data when it was already too late.

** 5365511 voters appeared at [18:30] : 52325 in Budapest 01. (V. district)

** 5283097 voters appeared at [19:00] 44341 in Budapest 01. (V. district) (saved page) 7984 less than at 18:30.

** Despite nonsense explanations, there is no way the "number of voters appeared" can be understood in different ways, or any way the number can decrease

** The official page changed on 2018-04-19, 11 days after election, currently: [at 19:00] 5570797 voters appeared, 48712 in Budapest 01. (V. district)'''. Less than before 18:30.

** -82414 (yes, minus, negative, crazy as it is !) citizens casted their votes in the last 30 minutes.

** you know what it means that -2 person is travelling on the bus (2 person needs to get on so that the bus becomes empty).

However, the '''reported voting results show total 5325376 votes, so even the official results clearly indicate the results are not based on real data.

More realistically by the end of voting min 71.5% (5630986 estimated) votes cast and several hundred thousand votes manipulated).

Because of the nonsense (noncrypto) method, usually it is difficult to prove just from the statistical data that it deviates from the real voter data.

* eg if significantly different from Gaussian distribution, then likely manipulated

** but even if no such anomaly, it does NOT prove or even indicate the lack of manipulation (it is stupid to assume the countrary)

Luckily, to estimate how extreme the data manipulation was, we have some rather reliable fresh comparison data this time, see HungarianElectoralFraudHodmezovasarhely

Apparently Fidesz high-criminals deploy their secret weapon of electoral data manipulation for parliament elections (2014, 2018) not for small inter-term elections where the gains are smaller (while the risks of people noticing is same).

* other circumstances about the unprecedented information blockade (3.5 hours on election day, and hiding the papers for 6 days in guarded "caves") are clear indication confirming the fact of fraud