Connect 4

1
Easy
you start
2
Easy
computer starts
3
Pretty easy
you start
4
Pretty easy
computer starts
5
Pretty hard
you start
6
Pretty hard
computer starts
7
Hard
you start
8
Hard
computer starts
9
Really hard
you start
10
Really hard
computer starts
11
Extremely hard
you start
12
Extremely hard
computer starts
13
Exceptionally hard
you start
14
Exceptionally hard
computer starts
Save
Comment
Try this game in Swedish:
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Recent activities in this game

Someone got 11 moves at level 1. Easy (you start) .
6 minutes ago after 54 seconds of playing.
Someone got 12 moves at level 4. Pretty easy (computer starts) .
13 minutes ago after 49 seconds of playing.
Someone had a problem at level 4. Pretty easy (computer starts) .
14 minutes ago after 0 seconds of playing.
Someone had a problem at level 4. Pretty easy (computer starts) .
14 minutes ago after 1 minute of playing.
Someone had a problem at level 4. Pretty easy (computer starts) .
15 minutes ago after 13 seconds of playing.
Someone had a problem at level 4. Pretty easy (computer starts) .
16 minutes ago after 36 seconds of playing.
Someone had a problem at level 4. Pretty easy (computer starts) .
17 minutes ago after 49 seconds of playing.
Someone had a problem at level 4. Pretty easy (computer starts) .
17 minutes ago after 1 minute of playing.
Someone got 12 moves at level 4. Pretty easy (computer starts) .
19 minutes ago after 1 minute of playing.
Someone had a problem at level 4. Pretty easy (computer starts) .
20 minutes ago after 52 seconds of playing.

Beat the computer with four pieces in a row!

The game Connect 4

Instructions to play connect four

The rules are simple: You play against the computer and you both have 21 discs (or markers) each. Depending on what level you selected, either you starts (with red discs) or the computer starts (with yellow discs). Click on the column you want your disc to fall down into. The disc falls to the lowest empty slot in that column. Then you wait for the computer to put it's disc. When the computer is finished, you can add your next disc.

To win in connect 4

The first to get four of their pieces in a straight line wins. A line can be horizontal, vertical or diagonal. You have to beat the computer to finish the round. If it's a tie (the whole game board is filled with discs) you have to try again.

Considerations in the game

On the more difficult levels, your computer often has to think for a long time to find a really good place for its disc. If you have a tired computer, this can take several minutes and during this period of time a pulsating spinning circle in the middle of the board will be shown.

Calculation of knowledge points

Each completed game level gives 1 knowledge point in Connect 4. The maximum number of points (14 knowledge points) is achieved when you pass all 14 levels. You'll get a bronze medal when you complete a level 2 times and a silver medal after 5 completed rounds. A gold medal will be received after 10 completed rounds. In Connect 4, the maximum number of collectable gold medals is 14. You only earn knowledge points for levels that has not been cleared before. A cleared level has a green background above. Even when you have completed a level, you can continue practicing at that level, but it gives you no more knowledge points.

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Reviews

3.9
Total 33
5
18
4
5
3
4
2
0
1
6

Additional game information

Game creator
Helpful Games
Target group
Kindergarten - Tenth grade
Practices
Strategy, Logical thinking
Updated
2018-11-06
Published online
Unique id
222
Saved by
20-30 users

Report

If you find a spelling mistake or something else that should be corrected, feel free to contact the game creator or us at Helpful Games.

Write a comment below to contact the game creator or

Comments


(Not shown - only for responses)
There are a total of 28 comments on this knowledge games.

D
Daniel Lind
13 March 2019 08:51
anon: Thanks for the feedback. I've corrected this now so it's no longer possible to make a move on a full column.
a
anon
13 March 2019 01:30
I placed in the centre column when it was full, and it took my turn away. I also lost the game.
S
Shikadi
3 March 2019 09:09
This bot is pretty sub-optimal, it should be impossible for me to win on the hardest difficulty if the bot goes first but it gives me 2nd row win incredibly early.
E
EzConnect4
6 November 2018 22:44
lvl 14 in 14 moves is the most perfect round possible for me
A
Anonymous
12 July 2018 20:05
It’s going pretty good so far I am winning so let’s see the rest of the levels
M
Madhubani 💖
6 July 2018 19:34
This game is really harder for me but I think 🤔 that everyone can use their brains 🧠 to solve it😏🦄.
L
Lune
18 June 2018 00:02
I just beat levels 11 and 12, 11 was way harder to beat, it took me twice as many moves to beat level 11 than it did level 12.
B
Beastdude6400
23 May 2018 20:00
This game is rigged and the robot hacks the system
k
kieren
4 May 2018 19:08
I just beat level 10 is it harder than level 11 I don't know
p
plus
24 April 2018 21:51
In my opinion level 10 is somewhat harder than levels 11 and 12.
k
kieren
19 April 2018 16:20
it's real fun also level 11 is a harder than level 12
m
moujik
23 September 2017 02:12
One of the better AIs out there. Still I win every time.. level 11 is a bit harder than 12, so you need to concentrate..
K
KBJ
12 April 2017 19:27
Level 12 is easy to beat. The algorithm for the computer needs changed to make the game more challenging.
i
iam96
3 February 2017 22:36
I finally got a gold medal on level 10! I studied how I won the first time, and found out the computer always seems to make the same guess and same mistake on a certain part of the game. I caught it! After finding that, it was easy to win over and over since the computer doesn't read it, and it keeps making the same wrong move. it doesn't read my move as a threat. I don't want to mention my actual moves since I know they will update the software hehe ;)
A
AB
27 January 2017 09:28
It is possible to win on level 10 also (but it's hard), the computer does not play 100% perfect, but close to it.
D
Daniel Lind
7 October 2016 13:23
Vancouver: You loose unless you beat the computer. That's the rule here. :)
V
Vancouver
7 October 2016 05:11
Why does it say i lose when it's a draw? It doesn't matter who starts first, if it's a draw, it says i lose...
m
math
6 June 2016 08:24
it is impossible to win if you allow the computer to go first on level 10. in order to win on level 9 you must place your piece in the center on the first move then proceed to play a perfect game.
S
Singer
29 May 2016 21:18
Great game. I'm swedish, but I go in the third grade so I Know English. GREAT GAME
M
Mihir
9 May 2016 14:19
Is it possible to Make a Connect 4 game that always wins?
r
richard jagger
1 March 2016 16:20
what does " someone had a problem...... " mean ?
H
Hmm
12 December 2015 01:26
What does 'Someone had Problem with (ex. level 7)' mean?
P
Phvli
15 December 2014 00:06
Heh, perhaps it was the crumminess of the algorithm then that caused my bot trouble, since mine was expecting the opponent to make perfect moves.

Anyways, if any of you is working on a bot of your own, this is what I ended up with: minimax with a depth of 9-ish, heuristics to take even/odd row threats into account and you should be all set. With the use of bitboards and some clever hash maps, you will always make your move in less than 2 seconds on a regular desktop computer.
j
jordi
13 December 2014 16:12
It's not that haard to win if you put 2nd. And I don't even now what an algorithm is :p
G
Gabriel
11 November 2014 13:13
This videogame is really useful to train the brain! Right-hand good!
P
Phvli
9 October 2014 04:16
Hmm actually nevermind, I found the original algorithm. It was my heuristic that wasn't up to the task. Adding odd/even row threats to mine was sufficient, and now I have yet to find an online solution that can beat mine.

Anyway, yours is the toughest opponent. Kudos!
P
Phvli
8 October 2014 10:00
Which algorithm/heuristics does the 'really hard' AI use? This was the first online implementation that was able to beat my alpha-beta bot. Pretty impressive.
n
natjimo
1 December 2013 22:06
if you go first you win and if you put 2nd you lose. its easy to calculate without even writing it down. and there for this game is boring.
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