Make a row of 4, with gravity.
Each turn, place a piece in an empty square so that it is supported below.
Make a line of 4 to win.
Family: Line games
|BGG Entry||Connect 4|
|atkinsst||N/A||Gifted to Mark|
|Auzette||2||Dis. Connect. 4. Ever.|
|alkaiser||6||[Children's Game] My kids can play this over and over. They love it. The game drives me insane though. It's pretty much one step above tic-tac-toe for me. But they love it so I'll play it with them.|
|Arctic Jack||6||A better game than it is probably given credit for by most. A great platform for budding young abstractees too. I bought this book to deeper understand Connect 4. The Complete Book of CONNECT 4: History, Strategy, Puzzles by James D. Allen A good abstract, well worth it's cheap price. I wish a larger grid was also commercially available.|
|Ammarg||4||variation of tic tac toe|
|alanykl||3||How to play? Just the same as the name: Connect Four.|
|Apathy||6||This game is basically tic tac toe, but it'll always be fun for me. I'm not sold on the new ways to play the new version of Connect 4. The pop out game is not fun at all, and I mainly just prefer the classic game.|
|Arcturian||5||A childhood classic that's still fun to play on occasion.|
|adularia25||2||Of all the variants of tic-tac-toe, this one seems like it should be so much more... and yet it disappoints like the rest. Either you crush your opponent because they don't see what you are doing, or you lose because you lost track of how many they had in a row. Either way, I despise playing this and would rather play tic-tac-toe (at least it ends faster.)|
|Altugas||5||A nice classic, with more strategy than it may seem.|
|Cheryllion||9||Here, diagonally! Pretty sneaky, Sis!|
|alexanderbanning||5||ABSTRACT, CHILDREN'S Travel edition. A thrift store find. Recommended with 2 players. 10 mins.|
|Admiral Fisher||4||A good one for kids and adults can play it and get a modicum of enjoyment from it. We have a wooden set called "4 in a row"|
|asta||3||AT MUM AND DAD'S I have a travel version. Fun for children.|
|AwesomeMike||4||it's a solved game but i'd still give it a go again|
|AnyMouse||N/A||I adore connect four. I don't care that it's "solvable" as I don't play with anyone who's studied the dissertation.|
|adamolanna||5||Vaghi ricordi di alcune partite giocate prima del 1985, mi piaceva molto, lo trovavo strategico e difficile.|
|aca83||10||Jugadores: 2 Tengo varios|
|ArtB||3||down from 4 likely won't play this again although could be convinced played many times before I began recording plays|
|Abso||2||Suffers from the same fate as Tic-tac-toe. Fun at start but eventually turns out into a draw or a loss by just counting the remaining turns and who happens to drop the final piece.|
|acekim||5||Not too bad for playing with small children just learning logic and how to block ones opponent. Much superior to Candyland...|
|a2greg||6||Classic. Nuff said.|
|IWilloughbyTroy17||9||you have to get four pieces in a row going diagonal, vertical, or horizontal. There are games that have no winners too.|
|Anakin1981||2||A simple game for kids.|
|atlcribber||5||For those not ready for pente, there is connect four.|
|airship51||N/A||Captain's Mistress - wood w/glass marbles.|
|Ajax||6||Classic game. Adds a little more strategy to tic-tac-toe. My daughter enjoys it, and I don't hate it.|
|balderin||8.5||This is an excellent game to play with my five year old. He wins about fifty percent now. Lots of fun. We can knock out about ten games in fifteen minutes.|
|alethic||4||One of those kids games that kids don't actually seem to enjoy a lot, but game theorists do.|
|Artax||5||Gyerekorunk ismert jateka.|
|AnttiT||3.3||As a child, I played this quite a lot. It can be entertaining, but will become repetitive if you play too long.|
|Olley Mauley Mim||10||Great game to play with KIDS. I have to rate it higher based on that fact. ANYONE can play. And if any KID proposed a game of Connect Four, I'd play it. :-)|
|Asmoridin||3.5||Again, probably loved this as a kid. Growing to being an adult, it's just too simple for me to want to play again. Played it again as an adult... still pretty simple, but can be fun on occasion =).|
|AndyHowell||7||There's a pretty fun bar in Arlington that has a giant Connect 4 set. I had so much fun playing it (with a bunch of other type-A overly competitive military officers) that I've got to raise my rating. I'm always up for a game of Connect 4. Also, my two year-old is starting to play a little.|
|amishburrito||5||A great game from my youth. I used to play this every day in elementary school with friends while the rest of the class had recess outside. Very simplistic for an advanced gamer though.|
|arhtu||7||McDonald's edition. ;)|
|bacusgod||3||A game with actually some strategy that just can't be compared to more recent, great games.|
|amwiles||1||Not a game. All plays are recorded from Yucata.de.|
|astroglide||5||i shouldn't care about games being solved unless i can actually do it myself. a master would no doubt blow me away at this game. fairly fun, easy to teach abstract with quick playing time. i'm sure i'll play it with my kids when i have some.|
|adstille||6||Great game that I kept for decades but it eventually became boring.|
|binraix||9||Classic game. I played this one in kindergarten and still love it. Very simple and still hard one if you have a good opponent! Recommend to math geeks out there!|
|Arnott||5||Basic, but still fun.|
|alexmate||6||Fairly fun game.|
|ajewo||N/A||Classic, abstract game that works especially well with kids. Similar games: * Qwirkle|
|AnnC||5.5||04+ or 06+, 2 player, 10 mins.|
|Aeneas||N/A||Pre.owned italian version "Forza 4"|
|alcatraz13||5||Fast and superlight!|
|aaronseeber||4||I had a lot of fun with this one as a kid, which gains it a point. Might not quite be my thing these days.|
|123SimPY||N/A||rode kruis editie|
|Alberto_Mena||4||It was a "must have" when it came out, more than 40 years ago.|
|Ashavan||3||Intro: Kua Klassen|
|areeves||5||Always a fun game to play with kids and adults.|
|agiese||N/A||Storage - Box 12|
|pingouin51||9||One of my favourite games with Deluxe MAster Mind. No luck involved!|
|anazagarus||4||A simple game, that if both players play optimally will be decided by who plays first. Playing with mixed-age pairings is tough, because the superior player will win always and easily.|
|amatyarakshasa||8||A fantastic game to play with children!|
|Alannamairead||3||I wouldn't care if I never ever played this again in all my life|
|adamscott||5||Meh. Thrift Store find. Donated to my classroom, where it has been played hundreds (no exaggeration) of times.|
|1 Family Meeple||5||It's a classic.|
|LoganDGarcia||10||So I'm biased because it's the game my fiancee and I played a lot when we were in college. But its a great game. Play several times win or lose always fun.|
|Aussie550||6||I play this with my 3 yr old...which usually involves putting tokens in as quickly as possible one after the other and shouting "I win!" when you mak a row of four...sooner or later I'm sure he'll get the idea and then it's hex and counter brainwashing time! Still playing. Now the boy is five we have progressed to the proper rules.|
|Armbar||N/A||Why am I so bad at this?|
|alfonzos||N/A||Something to play with kids who are too sophisticated for Tic Tac Toe but not ready for Go Moku.|
|arbitrarychoice||4||Classic children's pure strategy game. Not much to it after you figure out the main strategies.|
|Auntbeast||N/A||$1.98 Bought it because it was the German version. YAY! I have a German game! (never played, game still with packing intact|
|Htrinh0000||8.25||3/1/17: In storage|
|amodman||2||One of the few universal abstracts that's actually more or less "solved." I mean, it was a fun idea when I was a kid and it is a neat use of components. But yeah, not really much of a real game.|
|Apparos Achaparos||3||For kids mostly. Grownups should find it very shallow and lacking.|
|antoinedebruxelles||6||Puissance 4 Fond memories, like to trash my kids from time to time :)|
|cass_xoxo16||10||This is a good game beacuse it's easy and fun!|
|Cmot Dribbler||8.5||Great game!|
|2ndinBeautyContest||5||Quick with some strategy. Satisfying way to get the pieces out at the end of the game.|
|Anthares||6||A very good classic. Great for kids and adult too.|
|gecykkah||9||I love playing this one with kids. You can often get a good laugh out of them by making really bone-head obvious fours-in-a-row vertically or across the bottom horizontally. Kids are usually up for playing silly variants, like dropping two at a time instead of one.|
|alfredo lorente||5.5||A classic abstract that seems simpler than it is. After all, gravity is a harsh mistress, and you need to play with her as much as you play against your opponent. It may not be a "Gamer's classic," but there are many more much worse choices in the toy departments of the Walmart's of the world.|
|max_ra||10||This game is mostly undervalued. It is really strategical. You have to force your opponent to take the row you wnat him to take. You have to creat double-traps to win the game.|
|Area51||2||Busy 4 is my favorite Band.|
|baboon||6||With a brutal opponent, this can be a real game. Playing with kids can be tiresome. Also, I seem to recall the older versions being built a lot better.|
|autumnweave||7||7 is my rating for playing with non-gaming adults. 9 is my rating for playing with kids. I love playing this with my nine year old niece, and we do not tire of it. When we are together we play this day after day. We play best out of five and it's tricky enough that she will sometimes win, especially if I lose my concentration, and that keeps both of us on our toes. For playing with adults who have a lot of gaming experience I would chose something else.|
|Archi||N/A||1985 FX Schmidt|
|aaarg_ink||9||151105 Good memories for days gone by. Such a perfect tactile experience. 111130 something hypnotic about...I could play again and again. I'm certain its been solved, but is it easily solved? I'm not sure...I guess I should look it up sometime. Later.|
|happy_2728||10||A classic game for kids.|
|1000rpm||7||Great fun in the pub or garden (with a giant set). Also great for kids - taking turns, strategy, visualisation, etc.|
|AndersonCouncil||4||It's a simple game and fun but not one I'd take along to a game night with me. It's good for playing with small children though as it's so easy to learn.|
|pathagobi||9||Okay this is one of THE classics!!! I just love this game... all you have to do is get 4 in a row (any direction) and you say "connect 4!!!" This game for me is a timeless classic that is so much fun!!!|
|Anemelos||2||A simple abstract game. Its a game for kids.|
|Alex the Pretty Good||5||A good combo of strategy and deduction. Starts to get predictable after a few games with the same opponent though.|
|Aarontu||5||A simple, if slightly juvenile, abstract game.|
|mafiul||10||Best 2 player game (No luck, only brain)|
|alemfi||1||Unlike tic-tac-toe, the decision space is a bit too big to quickly teach them that a game can be "solved".|
|Andy Mesa||6||It's glorified tic-tac-toe but I still enjoy it.|
|awleong||5||OK game to have lying around as it is quick and it is easy to get someone to play. I have a wooden version called "Captain's Mistress".|
|Algernon88||5||Quite good a game, after all. Just not something you would ask to play, more like you won't refuse to play it if someone else wants to.|
|schaferlove||8||This one never gets old. A true classic.|
|Ace Pumpkin||5||Game Folio/Fun-on-the-Run/travel edition|
|adebisi||3||You're just repeating the same patterns over and over and wishing that your opponent will not see them|
|Bagherra||1||I don't particularly care to play solved games. It is a nice game for learning how to write computer games though.|
|arnest_r||5||Feels solved (yes, I know it IS solved), playing it feels almost like Tic Tac Toe|
|airjudden||4||This is really a kid's game, but it's one of the more enjoyable ones that I play with them. It has enough "oomph" that a couple of adults could squeeze in a quick game without being bored, and it's fast enough that it won't bore you for a long time (unlike Monopoly).|
|Appetyte||5||Classic I used to play when I was a child.|
|BrandenTheFirst||10||Connect Four has been a staple board game for me since my youth and I can say it's easily one of the first games I'd truly enjoyed when it comes to true strategy. Realistically, It's about a step above tic-tac-toe but it's also just different enough to keep that simple formula entertaining and fresh. I'd recommend this game to anyone just getting into board games as it's a good way to start expanding your thought process for more complex games. That being said- Connect Four has an optimal strategy but is one of the best in terms of beginning board games and will always hold a special place in my heart due to experiences with my family and friends.|
|ayedub||4||Another kid's game...I use to love it, but really it's a bit simplistic by today's standards.|
|AndrePOR||6||Classic (Before 2000)|
|AI||Strong Wins||Draws||Strong Losses||#Games||Strong Win%||p1 Win%||Game Length|
|Grand Unified UCT(U1-T,rSel=s, secs=0.01)||36||0||0||36||100.00||58.33||12.19|
|Grand Unified UCT(U1-T,rSel=s, secs=0.20)||35||2||9||46||78.26||47.83||35.24|
Level of Play: Strong beats Weak 60% of the time (lower bound with 90% confidence).
Draw%, p1 win% and game length may give some indication of trends as AI strength increases; but be aware that the AI can introduce bias due to horizon effects, poor heuristics, etc.
Ai Ai calculates the size of the implementation, and compares it to the Ai Ai implementation of the simplest possible game (which just fills the board). Note that this estimate may include some graphics and heuristics code as well as the game logic. See the wikipedia entry for more details.
|Playouts per second||1308215.59 (0.76µs/playout)|
|Reference Size||660763.84 (1.51µs/playout)|
|Ratio (low is good)||0.51|
Tavener complexity: the heat generated by playing every possible instance of a game with a perfectly efficient programme. Since this is not possible to calculate, Ai Ai calculates the number of random playouts per second and compares it to the fastest non-trivial Ai Ai game (Connect 4). This ratio gives a practical indication of how complex the game is. Combine this with the computational state space, and you can get an idea of how strong the default (MCTS-based) AI will be.
|1: White win %||51.11±1.63||Includes draws = 50%|
|2: Black win %||48.89±1.63||Includes draws = 50%|
|Draw %||7.02||Percentage of games where all players draw.|
|Decisive %||92.98||Percentage of games with a single winner.|
|Samples||3618||Quantity of logged games played|
Note: that win/loss statistics may vary depending on thinking time (horizon effect, etc.), bad heuristics, bugs, and other factors, so should be taken with a pinch of salt. (Given perfect play, any game of pure skill will always end in the same result.)
Note: Ai Ai differentiates between states where all players draw or win or lose; this is mostly to support cooperative games.
Random: 10 second warmup for the hotspot compiler. 100 trials of 1000ms each.
Other: 100 playouts, means calculated over the first 5 moves only to avoid distortion due to speedup at end of game.
Rotation (Half turn) lost each game as expected.
Reflection (X axis) lost each game as expected.
Reflection (Y axis) lost each game as expected.
Copy last move lost each game as expected.
Mirroring strategies attempt to copy the previous move. On first move, they will attempt to play in the centre. If neither of these are possible, they will pick a random move. Each entry represents a different form of copying; direct copy, reflection in either the X or Y axis, half-turn rotation.
|Branching factor||5.73|| |
|Complexity||10^26.03||Based on game length and branching factor|
|Samples||3618||Quantity of logged games played|
|Distinct actions||42||Number of distinct moves (e.g. "e4") regardless of position in game tree|
|Killer moves||2||A 'killer' move is selected by the AI more than 50% of the time|
|Good moves||27||A good move is selected by the AI more than the average|
|Bad moves||15||A bad move is selected by the AI less than the average|
|Samples||3618||Quantity of logged games played|
This chart is based on a single playout, and gives a feel for the change in material over the course of a game.
This chart shows the best move value with respect to the active player; the orange line represents the value of doing nothing (null move).
The first player held the advantage throughout the game. The lead changed on 0% of the game turns. Ai Ai found 1 critical turn (turns with only one good option).
Overall, this playout was 34.29% hot.
This chart shows the relative temperature of all moves each turn. Colour range: black (worst), red, orange(even), yellow, white(best).
Table: branching factor per turn.
This chart is based on a single playout, and gives a feel for the types of moves available over the course of a game.
Red: removal, Black: move, Blue: Add, Grey: pass, Purple: swap sides, Brown: other.
Note: most games do not take board rotation and reflection into consideration.
Multi-part turns could be treated as the same or different depth depending on the implementation.
Counts to depth N include all moves reachable at lower depths.
Inaccuracies may also exist due to hash collisions, but Ai Ai uses 64-bit hashes so these will be a very small fraction of a percentage point.
Black to win in 21 moves
White to win in 15 moves
White to win in 21 moves
Black to win in 9 moves
White to win in 17 moves
White to win in 17 moves
White to win in 17 moves
Black to win in 13 moves
Black to win in 9 moves
Black to win in 7 moves
White to win in 13 moves
Black to win in 5 moves
Selection criteria: first move must be unique, and not forced to avoid losing. Beyond that, Puzzles will be rated by the product of [total move]/[best moves] at each step, and the best puzzles selected.