The chess bot on Delta Air Lines will destroy you (2024) [video]

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207 points by cjaackie 11 hours ago


woopwoop - 10 hours ago

Last time I flew Delta they no longer had this bot, which made me sad. One of my favorite parts of flying was getting absolutely crushed into a tiny cube by the airplane seat's easy chess bot, and then again by the airplane seat itself when the person in front of me reclines their seat.

owenversteeg - 15 minutes ago

In short: it plays far too well (~2500 ELO.) People think it originally played at a reasonable level and accidentally got more powerful as the seatback computers got more powerful; the same thing happened to the Mac chess app with the release of the M1.

nomilk - 6 hours ago

There's a bug in the Delta Air Lines chess program. After cxd6 en passant, the captured pawn isn't removed [0]. White's bishop is then able to check the black king through the pawn (the pawn that should have been removed) [1].

[0] https://drive.google.com/file/d/1Nyov4F7eWbT8uNoeclPY8uXVG6f...

[1] https://drive.google.com/file/d/1eEPBHqE5rpefE9gWflgS_hUwYGS...

AnotherGoodName - 10 hours ago

I wonder if they gave the chess bot X seconds of thinking time in an era when computers were slower?

The way you set difficulty for turn based game ai is that you limit how far ahead the algorithm searches. If you set the lookahead based on compute time your difficulties will be way out of line if someone upgrades the CPU.

markgall - 10 hours ago

Is this really true? I played a few games with it in August. It's not very good.

It's one of those old programs where 95% of the moves are pretty strong. But if you just do nothing and sit back it will occasionally make a random blunder and then you grind it out. I figured it's how they were able to weaken a chess engine back in the day; can't adjust the overall strength, so add random blunders.

I'm only about 2000 on lichess but I beat it pretty much every time, especially once I realized there is no reason to try anything sharp.

tmathmeyer - 10 hours ago

Not only is the delta chessbot bad (My low 1600s lichess-elo self can win handily every single time against any difficulty, white or black), but there's also a sequence of moves I found which deterministically causes the game to crash. I should probably record it next time I'm on a flight.

conartist6 - 10 hours ago

There used to be a chess program in windows 3.1 that would destroy me every time. Not that I was very good, of course! But I think if you just code the known opening books it's not too hard to make a bot that requires a skilled player to beat.

s3p - 10 hours ago

I am so glad this made first page news on HN!!

Years ago I remember flying with Delta and wondering why the delta bot could beat me in a handful of moves on EASY. Absolutely insane.

tromp - 9 hours ago

Sometimes the airlines chess app gives you the option to play another passenger, but even after waiting for half an hour I've never been hooked up with another player. Has anyone else been able to?

JALTU - 11 hours ago

On the other hand, the poker apps encourage me to consider a career change. I regularly crush the "opposition" with my card-counting skills. World Series of Poker, I am all-in!!! ;-)

muyuu - 5 hours ago

I don't think I've played this bot. I guess the few times I flew in America wasn't with Delta as I would definitely try chess if available.

From what I've seen in the video I'd give the bot around 2100 FIDE equivalent. Granted you don't play bots like you play people. This bot essentially plays top engine moves and every now and then it introduces suboptimal moves. This technique can be played against choosing appropriate openings and being patient with calculation.

ccamrobertson - 9 hours ago

United sadly removed games from its in-flight entertainment so I can no longer trounce 6 year old Magnus.

jfaat - 6 hours ago

I see some chess players so I want to plug the chess coaching app [0] I'm building. I don't know many chess players and could use feedback, but I had been paying for chess.com premium and tried some others and it's always game-level feedback which is insane to me because it's really not that helpful (as evidenced by my abysmal rating.)

I'm running games through stockfish/lc0/Maia and doing some analysis of patterns across multiple games, then feeding that to an agent who can replay through positions and some other fun stuff. Really keen to find out if it's helpful for anyone else!

[0]https://chessfiend.com

specproc - 10 hours ago

I used to fly a lot of Turkish, and their one's laughably bad. If anyone here works for Turkish Airlines, get yourself a better Chess bot.

hk1337 - 9 hours ago

I had similar experiences playing the computer in Tzar: Burden of the Crown. It’s not chess but it is a strategy game.

https://en.wikipedia.org/wiki/Tzar%3A_The_Burden_of_the_Crow...

gip - 9 hours ago

I played the bot (probably early 2025) and wasn't that impressed. I won 5-1 or something like it. I did win one or two local chess tournaments in the past but I'm really not an impressive chess player.

efitz - 8 hours ago

Someday a delta engineer will go fix the UI bug where the labels for the difficulty levels were inverted in order compared to the enums used by the chess engine.

shen - 9 hours ago

The Air Canada bot is too easy on medium but hard is unplayable because the computer is too slow at making each move.

runarberg - 6 hours ago

Icelandair’s chess engine was equally brutal (well maybe only slightly less brutal). I played a couple of rounds on medium difficulty only to realize I didn’t stand a chance. I played a few more on beginner, and still lost all my game by blundering some tactics to the engine. Just before landing in Iceland I manage to get one game to the endgame, where the bot finally starts feeling like a beginner (well an advanced beginner) and I got one victory in.

lspears - 10 hours ago

This is great