Countdown

doh.ie

Take 2.

25 x (5-1) x 9 = 900 + (7 x 3) = 921

doh.ie

1, 2, 3, 4, 5, 25
[444]

denachoman

(25 -3) * 5 = 110 + 1 = 111 * 4 = 444

denachoman

2,4,6,8,9,75

531

Boro

9 - 2 = 7 * 75 = 525 = 6 = 531

Boro

1 2 4 8 9 25
target : 666

doh.ie

This took a while - such an evil number!

25 + 8 + 4 = 37

37 x ( 9 x 2) = 666

There's at least another way to do this on as well,
but I've lost it in my scribblings.

New set:

2, 3, 4, 8, 9, 25

[879]

Boro

8 - 3 = 5
9 - 2 = 7
7 * 5 = 35 * 25 = 875 + 4 = 879

Boro

1 3 5 6 7 75
target : 711

ixoy

Boro wrote:

1 3 5 6 7 75
target : 711

Hallo. Back for this one -

75*(6+3)=675
675+((7*5)+1)=711

ixoy

Okely dokely geekerinos-->

1, 4, 6, 8, 10, 50.

Target: 911.

Boro

10 + 8 = 18 * 50 = 900 + 1 + 4 + 6 = 911

Boro

2 4 6 8 10 25
target : 845

doh.ie

One away... (Starting to think this one may not be possible)

25 * 4 - (8 * 2) = 84 * 10 = 840 + 6 = 846

Boro

It definitely is possible

doh.ie

I'm pretty close to giving up on this one -
I can get 844, 846, 840...

But nothing on 845.

Someone I showed it to suggested it wasn't possible due to the lack of a 5
at the end of most scenarios...

Care to PM me a hint?

bandraoi

Boro wrote:

2 4 6 8 10 25
target : 845

(((8*(6+4))+2)*10)+25=845

---

10,2,1,4,9,100

443

doh.ie

((100 * 9) - (10 + 4))/2 = 443/1 (to use up all the numbers!)

Congrats on the previous one - was doing that for an absolute age and
never saw that.

2, 4, 7, 8, 9, 75

[555]

ixoy

bandraoi wrote:

10,2,1,4,9,100

443[/b]

Bad doh.ie! You posted your answer while I waited for boards to respond. Oh well here's my version of the solution:

(100-9)=91*(4+1)=455-(10+2)=443. Nice set of numbers.


As to doh.ie's

2, 4, 7, 8, 9, 75. Target: 555

Pretty easy --> 7*75=525
525+((4*8)-2)=555.

ixoy

OK here's some numbers for you lot -->

1, 2, 5, 7, 9, 75

Target: 911.

doh.ie

75 x (5+7) + 9 + 2 = 911

Sorry for your lagged post. You snooze, you lose!

Will get a new one in a sec when I think of a suitably large
prime number...!

bandraoi

ixoy wrote:

OK here's some numbers for you lot -->

1, 2, 5, 7, 9, 75

Target: 911.

5+7=12
12*75=900
900+2+9=911

As for the previous one, for some reason I spotted it very quickly, I think it's that sort of solution though, once I thought of taking away the 25 it was really obvious.

Anyway:

---

1,8,9,3,4,25
673

doh.ie

1, 2, 3, 5, 7, 25

[773]

Mwahaahahahah!

doh.ie

Bandroi's:

25 * ((8-1)*4) = 700

700-(9*3)=673

Worked out quite neat!

ixoy

doh.ie wrote:

1, 2, 3, 5, 7, 25

[773]

Mwahaahahahah!

Laughing are we? Well laugh at this!

(25*((5*7)-(3+1)))-2=773

ixoy

Eat this:

1, 6, 7, 8, 9, 25.

Target: 911. Yeah...

doh.ie

ixoy wrote:

Laughing are we? Well laugh at this!

(25*((5*7)-(3+1)))-2=773

Meh. Think I floated the target a bit too close to a 75!

As for yours... NOOOO! Evil, evil puzzle.

Not only is my 30 seconds of 'Countdown'-allotted time up,
but also my 'Er, I need to do this web thing now' work day has ended.

I don't have any more time - but I got 910.
Will have a go again over the weekend if no one's cracked it.

Boro

aha!

Missed out on a day of fun by the looks of things - wasnt such a quiet day at work as yesterday!

Congratulations Bandraoi on getting the puzzle that had doh.ie squirming

anyway :

6 + 7 = 13
9 * 8 = 72
13 * 72 = 936 - 25 = 911

nyom

Boro

1 2 7 9 10 50
target : 747

doh.ie

I could not be more angry at missing out on Boro's AND the evil of 911. Thought both were impossible. Must stop saying that.

Anyway...

(((10+2)*7)-1)*9=747

Coo. And 50 left over.

doh.ie

[739]
1, 2, 3, 4, 25, 50

Boro

50 + 1 = 51 * (3 + 4) = 357 * 2 = 714 + 25 = 739

Difficult one but easy once you get it!

Boro

2 5 7 8 10 75
target : 846

doh.ie

(75*10)+((5+7)*8)=846

1, 2, 5, 9, 10, 25
[577]

Boro

10 + 9 + 5 - 1 = 23 * 25 = 575 + 2 = 577

Boro

Hard one for ya (at least it seemed hard when i made it up!)

2 5 7 8 10 75
target : 954

doh.ie

Nightmare, Boro.

Spent ages today on it.

Will not make my usual mistake of saying it's impossible, but you can reassure
me that you found a way to do it...! Or is there something obvious I'm not seeing
(again!)

ixoy

Nah it's a nightmare doh.ie! I can't see the damned thing either! But we can't give up... never...

Boro

Ok a clue - subtracting 10 from the (accumulated) number is the last operation
so thats 2 5 7 8 75 to get 964

Hope this narrows it down!

Got annoyed watching all my other ones being solved really easily so i spent a good hour thinking up a right ***** of one the other day

doh.ie

I can hardly contain my frustration over this one...! Nightmare. Large portions of my life I will never get back now...

I can get 952, 953, 955 and 956 - some several different ways. But 954 (or 964 without the 10) is continuing to elude me... even with your hint.

This is the most difficult of these I have ever seen. Will come back to it when my head doesn't hurt so much!

Boro

Taking pity on you - the second last operation is to multiply by 2 (the last operation was to subtract 10).

I told ya twas a hard one!

doh.ie

You have positively ruined my life. Can't believe I didn't see it before.
I should tell you, I tried all the variations on multiplying (AND dividing!) by 2
and did not see this anywhere among them. 70x7?!!? Gah!

*deep sigh*

((((75-5)*7)-8)*2)-10 = 9 flippin' 54.

I hated this more than any puzzle I've ever done.

Now, give me the guts of a week to find something just as bloody annoying!

doh.ie

Still working on nightmare puzzle, but in the meantime...

1, 2, 3, 4, 10, 25

[841]

Boro

Congratulations on solving it finally - maybe i should have put a health warning on it

10 + 25 = 35 * 2 = 70 * 3 = 210 * 4 = 840 + 1 = 841

Boro

Dont worry - dont have any more of those hard ones saved up

3 4 7 8 10 50
target : 839

doh.ie

Boro wrote:

Dont worry - dont have any more of those hard ones saved up

Thank God for that! (Although I suspect you may have found some evil formula to make them harder than usual.)

Except you may be slipping:

(50*(10+7))-(8+3)=839

doh.ie

6, 7, 8, 9, 10, 25

[567]

wiw4

doh.ie wrote:

6, 7, 8, 9, 10, 25

[567]

6 + 7 = 13
13 + 10 = 23
23 x 25 = 575
575 - 8 = 567

wiw4

75 25 1 4 7 4

Target: 933

Mr. Flibble

can you use decimals in this? i got close:

25*75=1875
(7+1)/4=2
1875/2=937.5
937.5-4=933.5


..?