Speaker A
Ladies and gentlemen, if you know anything about chess, you know Martinbot on chess.com. If you have no idea what I'm talking about, now you know about Martin from chess.com.
Martinbot, a chess AI, faces off against a fruitfly-based neural network in a bizarre chess match with surprising moves and outcomes.
Key Takeaways
- A neural network based on a fruitfly can make surprisingly effective chess decisions.
- Martinbot struggles with standard chess strategy and makes many blunders.
- Capturing and checks are prioritized by the fruitfly AI due to its dopamine-based programming.
- Unconventional AI matchups can produce entertaining and instructive chess games.
- Technical limitations can affect the completion and analysis of AI chess games.
What the video covers
- Martinbot from chess.com is paired against a neural network modeled on a fruitfly's brain to play chess.
- The video showcases two games: one with the fruitfly playing white, the other with Martin playing white.
- The fruitfly uses a limited number of neurons and is programmed to value captures and checks.
- Martinbot makes several unorthodox and poor moves, including blundering pawns and pieces.
- The fruitfly surprisingly plays a strong game, capitalizing on Martin's mistakes and maintaining material advantage.
- The match features unusual moves like king f7 by the fruitfly and rook h6 by Martin.
- Despite being down material, Martinbot attempts risky moves but ultimately loses ground.
- The fruitfly's playstyle is influenced by dopamine boosts, encouraging captures and attacks.
- The game ends inconclusively due to technical issues, but the fruitfly is clearly winning.
- The video blends humor and chess analysis to explore AI decision-making in an unconventional matchup.
Chapters
- 00:00Introduction to Martinbot and the Fruitfly AI
- 01:22Game Opening: Nimzovich Defense and Early Moves
- 02:38Early Game Blunders and Fruitfly Captures Pawn
- 04:04Battle Heats Up: King f7 and Unexpected Moves
- 05:11Martinbot’s Poor Decisions and Fruitfly’s Advantage
- 06:24Critical Mistakes and Material Losses
- 07:38Fruitfly’s Strong Play and Martinbot’s Decline
- 08:38Endgame Developments and Technical Issues
- 10:46Game Conclusion and Final Thoughts
Full Transcript — Download SRT & Markdown
Speaker A
Very friendly guy, legendary Martinbot, builds your confidence. Well, in this video today, I am pairing the Martinbot against the fruitfly.
Speaker A
And I know what you're thinking. Gotham, you have really run out of content. You're not wrong. You see, here in September of 2026, we have fascinating technological developments. And one of them is mapping out the neural network of a fruitfly. And based on that neural
Speaker A
network, zapping it with occasional dopamine boosts and seeing if it can make good decisions on a chessboard.
Speaker A
That's the intro. I, I, I, I'm pairing Martin against the fruitfly and the results are just, just really... Anyway, I'm going to show you two games.
Speaker A
A game where the fly had the white pieces and a game where Martin had the white pieces. This is a fly. You can play the fly. I will link it in the description. The game starts with e4.
Speaker A
The game starts with e4. The fly's pawn's knight c6. In case you don't know, this is called the Nimzovich defense, named after Aaron Nimzovich. Uh, Martin plays d4. Two pawns in the center. If you can put them as very
Speaker A
good. If knight takes and the queen takes. If you're watching this as a strong chess player, cover your eyes. If you're watching this not as a strong chess player, cover your eyes. The fly plays knight to e5.
Speaker A
The fly has up to this point only used about 100,000 neurons. I don't know how many it has. Clearly for this move, it's not using all of them. Uh, now, the thing about Martin is he is completely
Speaker A
incapable of playing a normal chess game. Right now, the Sag, the Zagbot, the newbot on chess.com can't beat anybody.
Speaker A
But Martin takes the knight and the fly gives away another knight. Again, keep in mind this is a machine programmed to make decisions based on the neurotransmission of a literal, basically microscopic fruitfly.
Speaker A
Martin plays a fascinating move here. If I gave you all the guesses in the world, you would never be able to figure it out. Martin plays bishop to e2. A strong move developing his light-squared bishop to control some diagonal space.
Speaker A
And the fly captures on e4. It actually spots a free pawn. This man has blundered a pawn to an insect. Is it an insect? Anyway, Martin has many moves at his disposal, but he chooses the powerful pawn to c4, which is a move
Speaker A
that I don't know accomplishes what, but it takes a little bit of space in the center. Black responds f6.
Speaker A
Comfortable. Nice move. Opening up the king a little bit to a check maybe, but it's not a checkmate just yet. And that is exactly what happens. We have bishop to h5 check. And the fly plays the only legal move, blocking. This is not a
Speaker A
threat because if the queen takes, it's checkmate. And Martin just simply can't handle that. And in this position, plays bishop takes g6, pawn takes g6. And now black is up a bishop. And yet despite that is not even
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in an advantageous situation because of the move queen g4, the top move of Stockfish, which even this buffoon Martin manages to find. And the threat is not just the knight. It's queen takes pawn checkmate. Now I'm expecting that a
Speaker A
fly will not defend checkmate because it's a fly. Also, the fly often likes to capture stuff because that, I guess, sets off the dopamine.
Speaker A
I could not believe it when the move king f7 appeared because now boys and girls, we are in for a battle. This is going to be a real game. You thought this was just going to be over in nine
Speaker A
moves? I did. Martin takes the knight, though. Very nice move. The better move there was to block with the knight because if the bishop takes, it's a trade and then you defend yourself. And if you attack the knight, oopsies. And
Speaker A
here comes a counterattacking weapon. Very nice move. Now, king f7. Queen takes. The fly plays c6. Very powerful.
Speaker A
And here, folks, Martin really shows you what he's made of. Uh, he shows you his capabilities in the game of chess and he plays queen takes g6 check.
Speaker A
Uh, queen takes g6 is the move that a three-year-old plays while setting up the board and learning how the pieces move for the very first time. Uh, and, and frankly nobody else. Uh, you cannot play queen takes g6. That is not a good move
Speaker A
because the king can actually take the queen and that's what the fly does. Martin the Chessbot is losing to a fruitfly.
Speaker A
And I'm actually getting pretty excited because the fruitfly likes to capture things and clearly has been programmed that checks and captures are good, right? So, it's probably going to lead an attack at some point. Martin now plays the powerful king to f1, which is
Speaker A
like beyond stupid. Now, of course, you should just take, bring out your bishop, bring out your queen, get to the king, and win the game. Alternatively, of course, you can lose your rook in one move. And despite playing this powerful
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rook sacrifice, which achieves absolutely nothing, black is still completely winning because black is up a queen. Now, what you shouldn't do in this position is proceed to move your king. The more time you waste, right?
Speaker A
The more pieces you lose, the more time you waste, the higher chance that Martin gets back into the game. But we don't really have to worry about that because now knight c3 is played by Martin. The fly captures on e5, maintaining a
Speaker A
two-point material advantage with a very active king. And now Martin diarrheas all over himself, which is really difficult because when you, when, when you defecate it goes out that way. Like I don't know how you do it onto yourself.
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Martin diarrhea on himself while doing, I don't know, stretching. Uh, and plays rook to h6 which is just, it's just so stupid.
Speaker A
I, I don't know who programmed this thing, but rook h6 is unfathomably dumb. And the fly, which works on dopamine, took the rook. And it got even better because here Martin didn't take back. I thought that he was programmed to
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recapture in certain situations. He plays knight to a4. And the fly takes the bishop. Martin is down seven points to a fruitfly.
Speaker A
All the fruitfly has to do is bring the queen out, bring the bishop out, bring the rook out. It's winning. This is quite simple because a rook and two knights cannot do damage to a king, especially when the king has a ton of
Speaker A
space around and the protection of his other pieces. Rook b8 on the board. Mysterious move, but at least not a blunder. Martin said at this point, "You are playing quite well. Did my kids coach you?" Knight to f3 played. And if you didn't think this
Speaker A
was bad enough, the fly here plays queen f8. The fly is playing a fantastic game.
Speaker A
Like really. Martin goes knight d4 check. Are you kidding me? He loses another piece. He is down 10 points. He has no pieces left. I don't know how he's expecting to win this game.
Speaker A
Now he plays rook d1 and attacks the pawn, which the fly doesn't even defend and is just going for a direct attack against the king. This is unbelievable.
Speaker A
I mean, this man is actually going to lose to a fly. I thought, okay, we would have a fun, silly game back and forth, and then that would be the end of it.
Speaker A
No. Nope. Absolutely not. B4. Okay. Again, queen h1, then take the pawn or even queen h1 and take the rook, right? Then you play up, bring the bishop, bring this rook, bring the pawns forward. Like, you're super chilling.
Speaker A
Unfortunately, the fly's good run ran out and it played queen to d2. And this is when I was like, "Oh no." Because Martin is either going to take the queen or get mated. And I think he's programmed to
Speaker A
avoid getting mated. He takes. And now Martin has to play an endgame against the fruitfly, man. So now we have b6.
Speaker A
Powerful move. And Martin plays king to e1, running the king along the first rank. The fly responds rook to b7.
Speaker A
Completely unexplainable. G3. And now d6 moving a pawn. And now Martin plays g4 check and loses the pawn. He's slowly losing the remainder of his pieces. Martin only has six pieces remaining to do anything with.
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Rook takes d4 as a check. King to f.
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He loses the rook. It is all he has. That's all he has. He loses the rook.
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BUT THE FLY DOESN'T TAKE. THE FLY does not capture. Oh my goodness. Knight back to C3. The Not only does the fly not take the rook a second time, the fly runs away with the king. I don't know
Speaker A
why the knight reroutes and now the fly blunders its bishop to the rook. It could have taken for two turns. Rook takes G4. And now white is winning because white has an extra knight in a rook endame. Rook H4 check. King to G7.
Speaker A
Rook H2 back. And the fly has blundered a skewer. Rook to H7. But Martin pushes another pawn because he believes in giving everybody an equitable chance to participate in the game. A6. So does the fly. Rook H7 is still on the board, but
Speaker A
it's not being played. Rook H7 is on the board, but it's not getting played. It gets played. King to E8. And now Martin has to take the rook and then eat all the pawns. But Martin goes here. The
Speaker A
king goes back. Martin. Now you don't take the knight. But if you go king G7, the rook is hanging and the knight is hanging. And Martin is back to drawing a fruit fly in a game of chess. But we have pawn takes F4 first
Speaker A
which is a mistake because now there's rook H7. There's king G8 and Martin has captured the rook. And that folks is the conclusion of the game because now Martin is simply going to eat all of the pawns. It's going to take him a little
Speaker A
bit of time. He plays chess while wearing a helmet. C3. In fact, the fly gets this close to making a new queen.
Speaker A
And you know, Martin is susceptible. He has some blind spots as they pertain to queen promotions. Rook to C4.
Speaker A
Now you got to defend this with B3. If B3 was played, there was a chance. B3, rook C6, B2. Black wins. Be very, very careful allowing two pawns to walk together like this. So we have C1, queen.
Speaker A
Rook C1. And now Martin is going to clean up B5. All he's got to do is take the pawns. He's not taking the pawns. He fakes a draw. Pawn takes A4. Rook C8. He Okay, he's going to stop the He's going
Speaker A
to take Okay, now that's over. And uh yeah, that's the last pawn. Rook A6. All right, Martin, stop messing around. Give a couple of checks.
Speaker A
And the final pawn for the fruitfly survives the battle. And Martin is now losing yet again.
Speaker A
The fly thought for 12 seconds here and played this move. I'm not exaggerating. I don't lie for content.
Speaker A
Check. Check. and Martin decides that wasn't good enough. So, he just hangs the rook.
Speaker A
There is still a chance white can win this game if the pawn actually queens because like if if for whatever reason it doesn't get taken, Martin goes F4, king F7, F5. And in this position, the fly disconnected from the server.
Speaker A
The game never concluded. I'm not even joking. I'm assuming it would have probably taken the pawn because of its dopamine, but I have no evidence. I couldn't reconnect to the board. Maybe it's because other people were playing, but I couldn't find a move here. Now, I
Speaker A
don't know what we rule this, but I don't think it's a win for Martin.
Speaker A
Martin cannot defeat a fly at chess. He can't. Now, I'm going to show you the next game because I I felt it was only fair that the fly also got to play with the white pieces.
Speaker A
Oh, this is such garbage. Like, I How bad is this? B now. Okay. Next game, D3. Powerful first move. Uh, knight C5. Now, we have a riveting opening. I've never seen this opening before. D3 E5. Knight C3. Bishop C5. Uh,
Speaker A
the fly kicks off its, uh, dopamine receptors and plays the knight to E4. Now, that's not a bad move, but it's a very short-sighted move, right? Um, it targets the bishop on C5, but if the bishop moves, the knight is just in the
Speaker A
way. Like I've been saying, you don't want to lead the position with the knights. You want to kind of lead the position with the pawns. That's really the way. Now Martin goes here. And I was like, "Oh, okay. They're just going to
Speaker A
make a draw." Uh, but it it doesn't. It plays C3. Riveting. Fascinating little move. I love how to me a chess master of, you know, who has played for 20 years. This position looks utterly stupid. And I immediately know how to
Speaker A
take advantage of all of this. But like to an untrained eye, this might look completely fine. B5 is garbage. Terrible move. Uh, that's going to be a long-term weakness. You're going to have some problems here. You didn't play in the
Speaker A
center, but anyway, it's not losing. A5. Also garbage. Uh, but fine. But fine. And now D4. The fly has an opening advantage against Martin.
Speaker A
Incredible. Uh, D5 played. Okay. D5 played. All right. And now you got to move the knight because it's hanging. But obviously the fly uh operates on dopamine and knight G3 doesn't give it any sort of mental stimulation. So, it
Speaker A
takes the pawn on E5 and blunders the knight. But we've been here before. Marin's move here, truly incredible.
Speaker A
Queen D7, simply operating on a wavelength none of us can really imagine fully. Uh, and now bishop takes B5.
Speaker A
Everybody knows the saying in chess. When you have a hanging knight, it's good to hang a bishop, too. That might be a new one for you. I've never actually uttered those words. Uh, and now you can take the bishop or the
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knight. Now, of course, if you took the knight, you'd lose your queen. Um but uh Martin goes here and here white should save the bishop and then take back the pawn in the middle. That would be the best thing to do. Uh but instead we have
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bishop takes C6. Okay, knight takes C6 and another blunder of a piece. So the fly in this game off to a rough start.
Speaker A
Martin is going to pick up some material here. Uh, queen d8 back. And the fly must have just not had enough sugar water uh to kick off this last game. Uh, because here it plays knight f6 check.
Speaker A
It didn't play this badly in the previous game. Martin captures on f6. Okay. Uh, and the fly um, for some reason goes here. I don't know how this move gave it dopamine, but maybe it saw that there was a hanging
Speaker A
knight. Martin absolutely ruthless. Sometimes Martin wakes up and he's just an absolute unit. I mean, a bunch of you watching this right now can't beat Martin. That's what the statistics say.
Speaker A
That's actually kind of incredible. Uh, now the fly is catastrophically lost. Bishop to G4, queen to D1. Like, you can just put it out of its misery instantly.
Speaker A
Uh, but there is this move G3. Okay. And now, uh, again, bishop G4 threatens mate. Knight takes C5 brings in another piece.
Speaker A
Or you can do the Martin and go here. And that move um that's a bad move because he loses the queen. Now he is still completely winning because he has a piece advantage or two piece advantage. He has a bishop
Speaker A
and the knight extra but white has a bunch more pawns. Now of course he should play knight takes pawn. That is the best move. It brings the knight in closer. And then since white has a bunch of dark squared pawns, there's light
Speaker A
squared weaknesses to exploit. But the king moves to D8. Okay, white is still completely lost because despite the material disadvantage, like despite black wasting time, you you can't offset the fact that you're down a catastrophic amount of material. Rook B1. Rook B1.
Speaker A
Make a move that makes no sense cuz you are a fruitly. You don't know how to play chess.
Speaker A
That was that was fire. That's for the OGs. That song is like five years old on this channel. If you are a new fan, you have no idea what I'm talking about. Go look up the song Rook B1. And I expect
Speaker A
to see comments on that video like who who who who who came here from the Gotham video in 2026. I know how YouTube works. Okay, king C7. Powerful stuff here. Martin developing his bishop into a pawn and also moving his king. This is
Speaker A
not how you win a game. Like to win a game, you need to take your opponent's pieces and then when your opponent is on the other side of the board, you have to go into their position to get the king.
Speaker A
Like otherwise, you can just move around, but you're not going to win. E6. powerful mysterious.
Speaker A
Rook to B8 played by Martin, lining up an attack on this pawn, which the fly actually protects. Now, of course, I am waiting for the explosion in this game.
Speaker A
At some point, Martin's going to uh lose all his pieces. Uh, pawn takes C6. He's still not doing it. Four-point advantage here. Now, I would still beat Martin in this position. The way I would do it is I would play knight E2. I would castle.
Speaker A
I would go attack his weaknesses. And I would wait for him to make a mistake. Of course, you could also just give up a rook in one move. That's certainly a strategy. Uh because you know Martin's going to respond with bishop to B4,
Speaker A
losing his own piece in one move. That is actually what happened in the game.
Speaker A
Uh the fly did not capture that that bishop. Uh its rook also stayed hanging and the king went back to C8. I cannot explain any of these moves to you. I can simply show them to you and you can
Speaker A
choose to do with these moves what you would like. Like uh laugh uh cry, send this to a friend, shove them up your, you know, like whatever. Uh knight back to G1. Again, I don't really know. Oh, this rook has been hanging for like
Speaker A
three moves. AND FINALLY, IT gets taken. So, the Fly only has three pieces remaining. Somehow Martin has more than that. I I don't know how that happened.
Speaker A
I'm still expecting him to start losing all of them, but the fly is really not doing itself any favors in this game because the the moves are easy. It loses another pawn. And now Martin plays rook B5, which is a move that I completely
Speaker A
cannot explain. Uh, knight to F3. It would have been better to go knight E2 to attack the bishop. I don't even know what I'm analyzing here. Bishop to B4 back. And again, you got to maybe get a little counterplay. Uh, okay. And Marin
Speaker A
has lost a rook. This is very good. It's been a very long time since Martin made a mistake. The fly takes the knight instead. That's absolutely fine. Rook B8. And there we go. That was a four-point comeback right there. Now, we
Speaker A
are still down five points of material. You know what's pretty bad? When the material that you've just captured from your opponent is still less than the number of material, you're still you still down.
Speaker A
I'm just saying that's you. You really messed up there. Rook B6. Unfortunately, here the good uh streak of the fly comes to a conclusion. It plays bishop to A3, but it's still in luck because Martin pops off with H5. So, the bishop is not
Speaker A
being taken. Rook to E1. The fly is insisting on losing material. Martin is still not taking. There is still a window of opportunity here for the fly to fly out and maybe escape this experiment. Knight to F5. Suddenly,
Speaker A
Martin becomes sentient and captures the rook. And now, this is where I'm sounding the alarm. I'm I'm not sure the fly is going to be able to make a comeback. Knight D6. Okay, maybe, maybe, maybe. But it loses another piece. It
Speaker A
loses another piece. Now, bishop takes is the only way. And And the Fly is just off its game. We got to get back in the gym. This is just not working out.
Speaker A
Martin with a crushing 14point material advantage. The Fly absolutely dead set on not playing a single logical move for the past 20 turns. Pawn to G5. It loses the bishop. Bishop takes A2. Discover check. King C1. Bishop takes A3. Check.
Speaker A
King C2. Rook C6. Check. King D2. Bishop E7. King E1. I'm waiting. Maybe I'm patiently waiting for the pawn to make it through and maybe take the rook. That is typically how he loses. Bishop to B4.
Speaker A
Check. The king goes to D1. The bishop goes to E6. This is the final opportunity for the fly.
Speaker A
But it goes E4. And by a total miracle, Martin delivers a checkmate and defeats the fruitfly in the match of the century one and a half to half. And if you made it this far in this video, I just want
Speaker A
to ask you, what is wrong with you?
Topics:Martinbotfruitfly AIchess AIchess.comneural network chesschess analysisNimzovich defenseAI vs insect brainGothamChesschess gameplay
