There is a 6 Red Snooker tournament on the Oceania schedule and winning this event is a gateway to the international SangSom 6 Red Tournament and referees should therefore be conversant with the rules of this format of the game.
Apart from using just six of the 15 red balls there are only a few other changes to the standard rules which mainly concentrate on the Foul and a Miss rules. The other included condition is that snookers may not be laid behind a nominated colour.
The first major tournament using this format was held in 2008 and called the Six-red Snooker International. It was won by Ricky Walden over Stuart Bingham by 8 frames to 3. The next year it was re-named the Six-red World Grand Prix, this time won by Jimmy White beating Barry Hawkins in the best of 15 frame final, 8 frames to 6. The following year it was again re-named, this time as the Six-red World Championship and it has retained that title since.
It was not held in the 2011-2012 season but returned the following season and has since, in its present form, continued to be part of the calendar of sanctioned events.
The winners of the so named 6 Red World Championship are: -
2010 Mark Selby 8 – 6 Ricky Walden
2012 Mark Davis 8 – 4 Shaun Murphy
2013 Mark Davis 8 – 4 Neil Robertson
2014 Stephen Maquire 8 – 7 Ricky Walden
2015 Thepchaiya Un-Nooh 8 – 2 Liang Wenbo
2106 Ding Junhui 8 – 7 Stuart Bingham
2017 Mark Williams 8 – 2 Thepchaiya Un-Nooh
The normal rules of the Game of Snooker (15 Reds) will apply, but with the following changes ONLY for the 6 Reds Snooker Game.
1. There will be no more than 5 consecutive ‘Foul and a Miss’ calls at any one time.
2. After 4 consecutive ‘Foul and a Miss’ calls, the referee will warn the offending player that should a further call be made, the following options will be available to the non-striker.
a) He can play from where the balls have come to rest.
b) He can ask the offender to play from where the balls have come to rest.
c) He can place the cue-ball anywhere on the table, but this option cannot be taken if play has reached the ‘snookers required’ stage.
(I believe that c) here after the 'but' is an easy way of saying that a Miss cannot be called if penalty points are required as in the full rules, as a) & b) are the normal options after a foul where a Miss is not or cannot be called. I would further state, also as in the full rules, that the option to call a Miss shall not be available if penalty points are required to draw the frame).
3. The player cannot snooker behind a nominated colour at any time. (including when playing a colour after potting a red or a free ball nominated as a red).
(Again, I find this a little confusing as the only times nominations are required are the ones stated in the brackets, which makes the bracketed sentence superfluous or wrongly named as an inclusion when it is in fact a definition).
These are the full and only changes to the rules and the balls should be racked as in the above diagram. If the hands of the referee are large enough it may be easier to move the 6 reds into position manually rather than by using the triangle, there is nothing in the rules against doing it this way and it can even be more consistently accurate as long as an alignment check is always made.