Unfortunately, I did not get the Aha for Calculated in my initial rush. I probably gave up too early, looking back. 

Solve time of 18 minutes for Casino, and … well, it’s hard to say for Calculated.

Puzzles are at http://puzzle.cisra.com.au/puzzles.php . Short logs for each are after the cut. 

I’ll put Casino into the answer checker here, but you can check any CISRA answer at http://puzzle.cisra.com.au/solve.php .

Log:

0:00:00

Opening puzzle

0:00:25

Big file..

0:00:43

Oh god. Big image. Printing.

0:01:26

Colors in the bottom half are darker… are they the undersides of the top dice? Will examine and see.

0:02:54

Just looking at the dark purples, it seems so.

0:03:01

Let’s go in rainbow order, since I think we have red orange yellow green blue indigo violet dice.

0:03:19

Pairing up the reds. (drawing lines between, in light pencil)

0:03:29

Nope, that’s not exactly working. Two identical red dice at the top, for example, make it ambiguous, at best.

0:05:07

Oh, ok, the dice are in the same arrangement in the two photos. But some dice are rotated (so far, one turn) and some aren’t…

0:05:33

So, we have 9 red dice, 4 are rotated between images… the hidden numbers are 3,4,6,2 (and the repeated numbers 4,3,1,5)

0:08:21

Looking at yellow. There are 6 turned. out of 10. The turned ones repeat 2,3,4,5,1,6. The hidden ones are of course the same.

0:10:37

I don’t know why I skipped orange. Starting orange after trying to decode red and yellow with no luck.

0:13:04

8 orange dice 4 no rotation, 2 each cw and ccw. Duplicated numbers 1,2,3,4 

0:14:06

oh, the reds go 1,2,3,4,5. There are 5 rotated.

0:14:28

The reds, in that order, make an R

0:14:32

The oranges, a U

0:14:43

The yellows, a B

0:16:00

First pass on green, just got a 1 and 2, diagonal. (slash?). rechecking

0:17:15

Oops, they’re stacked. an I

0:17:26

Guessing RUBICON [Short-circuiting puzzles feels so good and so wrong at the same time. This wasn’t even a serious short-circuit, but it still feels like I should do all seven.]

0:17:53

Correct!

Calculated

Log:

0:00:00

Opening puzzle

0:00:43

Ok, math problems, with boxes for digits

0:00:48

At first it looked like some of the edges of the boxes had different weights, on zooming in…

0:01:13

That no longer seems to be the case. Printing.

0:03:21

Looks like there are 25 equations with 4 boxes each…

0:03:48

Then a 25 box equation at the bottom. And the boxes seem to be digits, not numbers, because there are two stuck together, but that’s not certain.

0:05:15

So, what numbers go into the boxes? 1234? 2010?

0:05:34

2010 doesn’t work.

0:06:59

I don’t think 1234 can make a single digt in any order in (a+b)!-(c*d). If it’s 3! then it’s 6-12, and if it’s 4 factorial, it’s 24-8.

0:09:40

Hmm, (a!+b!+c!)!+d doesn’t seem like to give a digit.

0:11:22

It can’t be all the same digit, at least in some rows… the 2nd one would produce a negative number.

0:12:51

If every row uses the same four digits… could they be 8111?

0:13:32

Lots work, but (a+b+c)!-d doesn’t.

0:14:43

Does 2111 work?

0:16:52

So far I get 11324824, but the last two are ambiguous, and most are powers of two… can the 3rd one also be?

0:22:21

Not all of these are uniquely determined. But they all seem to work.

0:23:22

Crap, 23 and 24 both don’t work.

0:24:18

So, does any set work in 23 and 24?

0:25:02

I guess the answers don’t have to be digits… but then what restrictions are there at all?

0:26:19

I give up for now

And then later I had the aha and it just worked. Not much of a post, sorry.