So I have the silver boss about to drop a green 2/2 block at column 4

He scores 1000 points, how is this calculated?
The blocks collapse 4 greens, then 4 yellows, then 4 blues
From the instructions I get
B = 4, different colours=3 so CB = 4, The Chain is 3 so CP=16, Group bonus=? not 100% on this but if it is all the blocks of which there are 12 this scores GB=8 Total score B10(CB+CP+GB) which is 1120, but he scored 1000 which implies GB should have been 9 blocks, which scores 5
What am I doing wrong?

Next:

I have just dropped the pink 3 and blue 1 and also scored 1000, the cascade I think was 4 blue, along with 3 skulls, 4 green, along with 1 skull, 4 pink, along with 3 skulls. It says that the skulls are like colours except dropping and clearing them, so
B=7, The Chain is 3 so CP=16, different colours=4 so CB = 8, Group bonus=? guessing at 19 which scores GB=8, for a total of 2240, turning the dropped skulls to my advantage but that isnâ€™t the score I got, infact GB can be 0 and I still score 1680, so I need to ignore the white stones and come up with the same as before?
But thenâ€¦

scores 440 points, which I get B=8,CP=8(2 steps), CB=4(red,green,white), GB=8 scores 1600,
so ignoring the skulls, and letting GB=0, I still get B=6,CP=8(2 steps),CB=2 (Red,green) which is a score of 600 and I only got 440

Clearly I am doing something wrong. Can someone please explain how the scoring actually works, as I am finally at a place where this is starting to matter. There is a big difference in game state with a score of 440 and 1600

For example in your first case, the boss do those clear in 3 steps:
s1: 4 green: 4101(minimal CP+CB+GP) pt
s2: 4 yellow: 4108(8 CP) = 320
s3: 4 blue: 41016 (16 CP) = 640
sums to 1000~

I did consider this, but I still couldnâ€™t get that to work. So is the group bonus 0 for all three steps?

what about the other examples?
the second example?
CB=2 for all 3 steps, and GB=?, assume 0 (unless it can go negative?)
S1: 710( 2 CB) = 140
S2: 510(2 CB+ 8 CP)=500
S3: 710(2 CB+ 16 CP)=1260
sums to 1900, rather than 1000

the third:
S1: 810(2 CB) = 160
S2: 410(8 CP) = 320
Sums to 480, rather than 440

so even ignoring the group bonus I am ending up too high. Providing I have done my maths correctlyâ€¦ This is rather confusing. Even ignoring the skulls example 3 still ends up at 430 rather than 440 so I still donâ€™t understand something, and this is without including the group bonus

OK, so if I ignore the skull as a colour, or block, and consider the group bonus for the current step I can get example 3 to work
S1: 610(2 GB) = 120
S2: 410(8 CP) = 320
sums to 440 Is this correct?

I think that if you donâ€™t count the skulls cleared into B and a color, you would get the right answer
And thank you for helping me figure out a bug in my bot

Thanks for your help, I think they should change their description a little as it was not really obvious to me. In fact they tell me the skulls are colours just harder to eliminate.

s1: 4 blue: 4101(minimal CP+CB+GP) = 40
s2: 4 red : 4108(8 CP) = 320
s3: Group blocks total is 10, which scores 6
6 pink: 610(16 CP+2 CB+6 GB)=1440
4 yellow: 410(16 CP+2 CB+6 GB)=960
for a total of 2760 but we only got a score of 2360

so what am I doing wrong here?
other things I testedâ€¦ if I assume a group of 6 for the pink, then a group of 10 for the yellow it gives 2520, if I assume 4 for yellow and 10 for pink I get the same, groups of 6 for pink and 4 for yellow I get 2280