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Tournaments vol. 2 (Read 190160 times)
Harryck Repse
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Re: Tournaments vol. 2
Reply #255 - Aug 9th, 2012 at 4:10am
 
3.77 on a crazy easy board. paniced from seeing how easy it was and stumbled through
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TBDMfan
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Re: Tournaments vol. 2
Reply #256 - Aug 9th, 2012 at 11:12pm
 
harryck: do you plan to show us the board?
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Harryck Repse
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Re: Tournaments vol. 2
Reply #257 - Aug 10th, 2012 at 7:13pm
 
Did not save it. 7 rows had mines and they were all adjacent, right column was 1-5 top row was 1-3 and left column was 1. Rest of rows were solvable without looking at columns
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Stephan
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Re: Tournaments vol. 2
Reply #258 - Aug 18th, 2012 at 4:13pm
 
Hi Nono T players,

finally got response from Yariv - he changed the Nonosweeper tournament database according to my proposal (and EWQM.'s suggestion).

Starting with the next season, we will have eight categories. Out of each category, exactly one board will be played. So, a mixture between various types of boards will be guaranteed. The order of the categories will be random.

The categories are described by several parameters as follows:
<will be posted in the next post>

Within a category, there is a 50/50 chance which kind of board is played:
a) The algorithm chooses one of the predefined boards - per category, I defined between about 15 boards (including existing boards we had before).
b) The algorithm creates a random one restricted by the parameters given for the chosen category.

We both hope that this will work fine Smiley and will give us more fun and more surprises in playing tournaments.
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Stephan
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Re: Tournaments vol. 2
Reply #259 - Aug 18th, 2012 at 4:21pm
 
Categories:
cat. description xsize ysize squares density proportions x:y
A Big board with extremely high mine density >90%
(e.g. 40x25/988 mines)
any any >=300 >90% any
B Big board, both sides 10+, min. 144 squares,
with low density <15%
(e.g. 20x20/20)
10+ 10+ >=144 <=15% any
C Any board with unusal rows and columns (e.g. 11x7 or 15x13),
min/max rows/columns 7-23,
medium density 40-75%
7 to 23,
w/o 10/15/20
7 to 23,
w/o 10/15/20
any 40-75% any
D Large medium board with medium-high density 44-90%
(e.g. similar to expert style, but a little bit easier
to make it solvable for everyone competing in tournaments)
any any 150-300 44-90% <3
E Medium board, both sides 8, 10, 12 or 15,
with medium-high density 30-80%
(e.g. similar to intermediate style)
8, 10,
12, or 15
8, 10,
12, or 15
any 30-80% any
F Long rectangles (proportions greater than 3:1 or 1:3)
with medium/high density 25-90% (e.g. 6x25/115 mines)
any any >=100 25-90% >=3
G Tough board,
medium density 45-80% with >200 squares
any any >200 45-80% any
H Small board (max. side 10, max. 80 squares),
but no parameter below 5 (minimum would be 5x5/5)
5 to 10 5 to 10 <=80 any any
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Stephan
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Re: Tournaments vol. 2
Reply #260 - Aug 18th, 2012 at 4:30pm
 
Another side info: According to the best times received on previous T boards, here is some characterisation of the categories considering assumed T winner times:
  • cat. A: between 3.5 and 20 seconds
  • cat. B: between 1.5 and 10 seconds (some exceptions up to 120 s possible)
  • cat. C: between 2 and 25 seconds
  • cat. D: between 7 and 90 seconds
  • cat. E: between 9 and 40 seconds
  • cat. F: between 11 and 90 seconds
  • cat. G: between 45 and 350 seconds
  • cat. H: between 1 and 5 seconds

This means that it would be a unlikely coincidence if there are again more than 2 sub-5 and more than 4 sub-10 winner times in a season. Hope, you like it.
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TBDMfan
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Re: Tournaments vol. 2
Reply #261 - Aug 28th, 2012 at 11:38pm
 
good news, stephan.

about the current board: c'mon guys. i know from the lst time we had this board, that you can sub25. i'm worried that you are holding your scores. Wink
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TBDMfan
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Re: Tournaments vol. 2
Reply #262 - Sep 10th, 2012 at 10:14pm
 
what a nice board to finish a season. Cheesy i predict sub130 times. Tongue
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Harryck Repse
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Re: Tournaments vol. 2
Reply #263 - Oct 9th, 2012 at 10:37pm
 
Interesting board. It has been a long time since I played a tournament board this much. I think low 40s are definitely possible.
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TBDMfan
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Re: Tournaments vol. 2
Reply #264 - Oct 9th, 2012 at 11:11pm
 
pretty sure that sub45 is possible. it's tough finding the right balance skipping boards, taking risks and solving boards.
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NYMIKE
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Re: Tournaments vol. 2
Reply #265 - Oct 16th, 2012 at 2:06am
 
This season boards are tough
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TBDMfan
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Re: Tournaments vol. 2
Reply #266 - Oct 16th, 2012 at 2:09pm
 
the boards so far may have been tough, but i find more challenging boards quite enjoyable.
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jos
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Re: Tournaments vol. 2
Reply #267 - Oct 28th, 2012 at 1:02am
 
The Div 1 players are amazing. I have looked at some videos and have learned about choosing the non bombs.
But how do you do you guys do it so quickly?

I didn't know about the F2. What is the best way to learn more tactics? Should I look at topics in this forum?

Thanks,
Jocelyn

TBDMfan wrote on Nov 13th, 2011 at 2:14pm:
@stephan: thanks!

this is what wrote to NYMike about the last board. he got such a board within 10 minutes and as written before i finished 3 boards in a bit more than an hour.


Quote:
hint for nono S44 T7: there are only 3003 different boards. keep the left mouse button pressed and move it along the top row, while pressing f2 whenever you are over the top left or top right corner. if you can play a board every second (this way you can easily play 2 per second), you have a 18% chance of winning a board within 10 minutes, 33% chance within 20min, 45% within 30min, 55% within 40min, 63% within 50min and 70% within 60min of playing.
..
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TBDMfan
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Re: Tournaments vol. 2
Reply #268 - Oct 28th, 2012 at 11:32am
 
hello jos,

the trick in the quote can only be applied to very few boards and doesn't help at all with any other board.

there are a few general strategies though.

normal solving: solve like you would solve expert or genius level. hit f2 until an edge column or row of the board is solvable. use flags and clear safe squares. this is the easiest strategy but it is not very fast. it's best on big boards with medium mine density.

nf: hit f2 until an edge column or row is solvable but only clear the safe squares. it is fast on all boards that have fewer safe squares than mines. on big boards with medium mine density it might become a bit too difficult and other strategies might become faster.

blue face: once the number of of flagged mines is the same as the number of mines hidden in the board, the yellow face turns blue and a left click on it ends the board. if all mines are correctly flagged, the game is won, else lost. it is fast on all boards with a low mine density.

advanced nf - hexx-strategy: look through hexx' posts in this forum. he explained it very well in one of his posts. it's good on small to medium sized nf boards.

half-hexx: same as hexx-strategy but you only solve the opposite columns or rows at the start and then continue with rows or respectively columns. it is applicable to more boards than hexx-strategy.

advanced blue face: on some boards normal playing can't be beaten by other strategies, yet it can be optimized. once 90% of the board is solve, only flag the remaining mines. it can save a few seconds.

the key to fast times is knowing these strategies and finding the fastest for a specific board. often enough a few are equally fast and it becomes a matter of personal preference. this week normal solving, nf and blue face are about equally fast. that is, if you can execute all startegies equally well.

the best way to imrove is, obviously, to play a whole lot. Wink
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jos
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Re: Tournaments vol. 2
Reply #269 - Oct 30th, 2012 at 2:31am
 
EWQ,

Thanks so much for your suggestions!

jos
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