Rules for online games in Heroes III and the seasonal Ranked Tournament.

4.3. Auction method for selection.
When creating a game, the host generates a random pair of cities. After that, players take turns stating the amount they are willing to give their opponent in exchange for the right to choose a city first. The minimum bidding increment is 100 coins. A similar auction procedure applies to color selection. The total amount (for the city and color) must be transferred by one player to the other before the start.
If a pair of identical cities is generated, an auction takes place for the right to choose the starting hero first. Then, an auction takes place for color selection.
Each player has the right to regenerate the city pair once at their discretion, paying 500 coins to their opponent for this. In this case, the player who pays 500 gold can impose a ban on generating one of the cities.

When using HD-mod, players must enable the following options:
HD+
Save before each battle.
Save all days (for tournaments)
As well as the HW_rules plugin. Settings for HW_rules are at the discretion of the tournament organizer.

1.2. Restart upon the first encounter up to 115-116-117 inclusive for fast, medium, and slow paths respectively.
An encounter is considered direct contact between players, i.e., any battle between them (a battle between any heroes, a battle with the garrison of an enemy castle or mine).

1.2. Restart upon the first encounter up to 115-116-117 inclusive for fast, medium, and slow paths respectively.
An encounter is considered direct contact between players, i.e., any battle between them (a battle between any heroes, a battle with the garrison of an enemy castle or mine), or capturing a town/village without a fight.
If an encounter occurs during the early game phase, players must load the save and replay without the early game phase. If no encounter occurs without the early game phase, the game continues.

2.1.5 When playing with an auction for color, red-rush is allowed on all maps.

To use the Grail bonus, you must build a Mage Guild of the corresponding level in any of your cities, or from the moment the player gains control over a castle that already has a Mage Guild of the corresponding level built. (similar to magic scrolls, but for all levels of magic)

2.12.5. Daily excavation bug prohibited. It is forbidden to excavate if the hero moved during that day.

- In the Conflux castle, you can choose any starting hero.

b) which does not have a continuous road leading from the starting castle to the central treasure zone along the starting area,
are taken on the day these facts are discovered. If subjective restarts remain, then one of the available subjective restarts is used (i.e., with 124 remaining, the remaining 111 restart can be used). If subjective restarts run out, the player may demand an additional restart.

b) which does not have a continuous road leading from the starting castle to the central treasure zone along the starting area,
are taken on the day these facts are discovered. If subjective restarts remain, then one day of subjective restarts is used. If subjective restarts run out, the player may demand an additional restart.

10. Mirror Maps: h3dm1 and mt-diamond
Map settings options: map size L+U, players – 2; computers – 0; (6 - for mt_diamond); teams – 0; no water; strong monsters; difficulty 160%,
Chess timer – (21:00+08:00+01:15).
Roads – medium.
Additionally:
- Starting cities are always identical.
- Restart based on slow and fast paths. It is applied at the request of at least one of the opponents immediately after generating the map.
- Only one subjective restart per day.
Additionally:
Passing by shifted guards between zones is prohibited for h3dm1, allowed for mt_diamond.