Opening problems for AI: Problem 1

Bill Spight · #1

Well, my idea is not actually that these positions will be problems for bots. They are actually problems for humans. But the human answers are not the answers bots would give. The human answers may not even be on the bots' radars. My thought is that these problems could be resources for people studying the opening until new, AI tested opening books become available.

I invite anyone to post answers for any top AI, and to post new problems.

Problem 1.

Click Here To Show Diagram Code: [go]$$Bc White to play $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . 3 . . . . | $$ | . . . 2 . . . . . , . . . . . , 1 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . 4 . . . | $$ | . . 5 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Pre-AI opening theory makes this almost an only move problem. But I doubt if it is on the bots' radars. Where would a bot play? I don't think that there is one answer.

Bill Spight · #2

Click Here To Show Diagram Code: [go]$$Bc A play with threats $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . 3 . . . . | $$ | . . . 2 . . . . . , . . . . . , 1 . . | $$ | . . . . . . . . . . . . . . 0 . . . . | $$ | . . . . . . . . . . . . . . . . 8 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . 6 . . | $$ | . . . , . . . . . , . . . . . , a . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . 4 . . . | $$ | . . 5 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

is the human textbook answer. The reason for not playing at a, is that White has a follow-up at :w8:

which makes a base, and which also has a follow-up at :w10:

. The reasoning is sound about choosing plays that have good follow-ups that also have good follow-ups. However, I doubt if any of today's top bots give :w6:

more than a few rollouts.

Not that :w6:

is an error. It probably loses a few percentage points to any bot's choice of play, but not enough to make it a clear mistake. It's just that the bots do not value the sides as highly as they do the corners.

Click Here To Show Diagram Code: [go]$$Bc White encloses a corner $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . 6 . . . . . . . . 3 . . . . | $$ | . . . 2 . . . . . , . . . . . , 1 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 6 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . 6 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . 4 . . . | $$ | . . 5 . . . . . . . . . . 6 . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Here are my guesses for the bots' answers. They will make a keima enclosure of one of the 4-4 corners. I doubt if they will agree which enclosure to make, but I have covered the bases.

sorin · #3

I gave it a try with KataGo, turns out that your statement is a human misconception, Bill :-)

Namely: bots like the area around the middle of the right hand side, but just think it is not most efficient to play there directly: rather, KataGo wants to make a contact play against black's shimari first, then extend on the right side (exact location depending on how black answers).

It is true though, that the direct corner enclosures from the hoshis are the top choices for next move.

Bill Spight · #4

sorin wrote:

I gave it a try with KataGo, turns out that your statement is a human misconception, Bill :-)

Well, . . .

Quote:

Namely: bots like the area around the middle of the right hand side, but just think it is not most efficient to play there directly: rather, KataGo wants to make a contact play against black's shimari first, then extend on the right side (exact location depending on how black answers).

It is true though, that the direct corner enclosures from the hoshis are the top choices for next move.

That jives with my understanding, so I guess I did not express myself very well.

Maybe in looking for another problem I should pick one where I'm pretty sure that the bots will agree that either the consensus choice or the choice of someone like Takagawa or Fujisawa Hideyuki was a definite mistake.

Uberdude · #5

If I wanted to have fun pretending to be Go Seigen...

Click Here To Show Diagram Code: [go]$$Wcm6 $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . 4 . . . . . . | $$ | . . . . . . . . . . . . . . X . . . . | $$ | . . . O . . . . . , . . . 1 2 , X . . | $$ | . . . . . . . . . . . . . 3 . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . 9 . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 7 . . . . . . . . . . . . . . . | $$ | . . 6 5 . . . . . , . . . . . O . . . | $$ | . . X . . . . . . . . . . . . . . . . | $$ | . . . . 8 . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Bill Spight · #6

Uberdude wrote:

If I wanted to have fun pretending to be Go Seigen...

Mumonkan wrote:

Place yourself in the same freedom as the sky.
You name it neither good nor not good.

sorin · #7

I was thinking yesterday, while reading Bill's new series of threads, that the message I think AI is telling us is: "you can play anything you want, LITERALLY, in the beginning of the game, as long as you follow it up reasonably afterwards, and you don't make any bad mistakes". I know it is not super helpful, but that's what I think I hear it say :-)

Bill Spight wrote:

Uberdude wrote:

If I wanted to have fun pretending to be Go Seigen...

Mumonkan wrote:

Place yourself in the same freedom as the sky.
You name it neither good nor not good.

lightvector · #8

KataGo recent stronger unreleased 40 blocks, lots of playouts, analysisWideRootNoise = 0.1 to force evaluation of lots of options. Winrates from black's perspective.

Knotwilg · #9

Click Here To Show Diagram Code: [go]$$Bc White to play $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . 3 . . . . | $$ | . . . 2 . . . . . , . . . . . , 1 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . a . . . . . . . . . . . . . . . | $$ | . . b . . . . . . . . . . . . . . . . | $$ | . . . , . d . . . , . . . . . 4 . . . | $$ | . . 5 . c . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Traditional move is the shoulder hit but we know bots are not too fond of it, definitely not in the beginning. If bots go there, they rather approach A, B, C, D. If elsewhere, they'll enclose one of the UL/LR corner.

Click Here To Show Diagram Code: [go]$$Bc White to play $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . 3 . . . . | $$ | . . . 2 . . . . . , . . . . . , 1 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . 6 . . . . . . . . . . . . 8 . . | $$ | . . b . . . . . . . . . . . . . . . . | $$ | . . . , . 7 . . . , . . . . . 4 . . . | $$ | . . 5 . c . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

I go

to

Uberdude · **#10**

I will test my Leela Zero Opening Gospel to these problems, and see if it does better than the human pros

No local urgent situations.
No urgent class -3 to -1 situations.
No opportunities for class 1-5.5.
There are class 6 shimari from 4-4 available.

Click Here To Show Diagram Code: [go]$$Bc White to play $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . 6 . . . . . . . . 3 . . . . | $$ | . . . 2 . . . . . , . . . . . , 1 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . 6 . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . , . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . 6 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . 4 . . . | $$ | . . 5 . . . . . . . . . . 6 . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

These are KataGo's top 4 choices.

Gospel: 1 - Humans: 0

dhu163 · **#11**

I'll try to think about the position without using AI, though I'll inevitably read some of the comments above.
I may be a little out of practice, but I did train quite a bit with Katago in 2020.

Bill Spight · **#12**

Wow, Daniel!

Your comments on these problems are quite valuable at this point in time.

kwhyte · **#13**

I was surprised to see that the bots are ok with the 4-4 shoulder hit in the lower left. That move is one that I would have played pre-AI but thought I had learned was generally poor.

Bill Spight · **#14**

kwhyte wrote:

I was surprised to see that the bots are ok with the 4-4 shoulder hit in the lower left. That move is one that I would have played pre-AI but thought I had learned was generally poor.

Well, Honinbo Shusai played it, too, so you're in good company.

Opening problems for AI: Problem 1

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