illusionary sente

General conversations about Go belong here.
Post Reply
xed_over
Oza
Posts: 2264
Joined: Mon Apr 19, 2010 11:51 am
Has thanked: 1179 times
Been thanked: 553 times

illusionary sente

Post by xed_over »

I've been playing with a 3d new co-worker several times a week now, and he's been pointing out that many of my moves are what he calls "illusionary sente".

That is, even though he may be forced to respond, its typically a response he wanted to make anyway (a "thank you" move), or one that takes away a possible tsuji or other big sente play for me in a nearby area.

For many kyu players, once we learn the concept of sente and gote, we then try to play all the "sente" plays we can find right away. But apparently, many of those are just illusionary sente.

How do you guys learn to recognize illusionary sente from true sente?
User avatar
Li Kao
Lives in gote
Posts: 643
Joined: Wed Apr 21, 2010 10:37 am
Rank: KGS 3k
GD Posts: 0
KGS: LiKao / Loki
Location: Munich, Germany
Has thanked: 115 times
Been thanked: 102 times

Re: illusionary sente

Post by Li Kao »

I think calling them "useless sente" describes their nature better. And just ask the question "If I do this and he responds, has that improved the state of the game?".

But of course this answer is general to the point of uselessness.

Another important aspect of sente is whether if he moves first his move is sente. Since then you need to compare the result of the move pair where you started with the move pair where he started.
Sanity is for the weak.
User avatar
Solomon
Gosei
Posts: 1848
Joined: Tue Apr 20, 2010 9:21 pm
Rank: AGA 5d
GD Posts: 0
KGS: Capsule 4d
Tygem: 치킨까스 5d
Location: Bellevue, WA
Has thanked: 90 times
Been thanked: 835 times

Re: illusionary sente

Post by Solomon »

The only way to recognize fake from real sente is simply to ask yourself if you'd really respond to your own move.
User avatar
Chew Terr
Gosei
Posts: 2060
Joined: Mon Apr 19, 2010 12:45 pm
Rank: KGS 3k
GD Posts: 264
KGS: Chew
Location: Texas
Has thanked: 546 times
Been thanked: 172 times
Contact:

Re: illusionary sente

Post by Chew Terr »

xed_over wrote:How do you guys learn to recognize illusionary sente from true sente?


This sounds like a question of improving judgement. The only way I know to improve judgement is experience, plus analyzing games. If anyone knows a better way to improve judgement of positions, I'd love to hear it.
Someday I want to be strong enough to earn KGS[-].
User avatar
palapiku
Lives in sente
Posts: 761
Joined: Sun Apr 25, 2010 11:25 pm
Rank: the k-word
GD Posts: 0
Has thanked: 152 times
Been thanked: 204 times

Re: illusionary sente

Post by palapiku »

Watching pro or high dan games is a good reminder of how many things are best left unsettled/unplayed. Even low dans play many more forcing moves.
Bill Spight
Honinbo
Posts: 10905
Joined: Wed Apr 21, 2010 1:24 pm
Has thanked: 3651 times
Been thanked: 3373 times

Re: illusionary sente

Post by Bill Spight »

xed_over wrote:I've been playing with a 3d new co-worker several times a week now, and he's been pointing out that many of my moves are what he calls "illusionary sente".

That is, even though he may be forced to respond, its typically a response he wanted to make anyway (a "thank you" move), or one that takes away a possible tsuji or other big sente play for me in a nearby area.

For many kyu players, once we learn the concept of sente and gote, we then try to play all the "sente" plays we can find right away. But apparently, many of those are just illusionary sente.

How do you guys learn to recognize illusionary sente from true sente?


From what you say, it sounds like he is talking about aji keshi.

For a discussion of whether and when to play sente, I think that these SL pages are pretty good: http://senseis.xmp.net/?Kikashi
http://senseis.xmp.net/?KikashiSenteDiscussion

There is no easy answer, and the pros do not always agree about specific cases.
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins

Visualize whirled peas.

Everything with love. Stay safe.
User avatar
Toge
Lives in gote
Posts: 313
Joined: Tue May 18, 2010 11:11 am
Rank: KGS dan
GD Posts: 0
KGS: Toge
Has thanked: 36 times
Been thanked: 63 times

Re: illusionary sente

Post by Toge »

Introduction chapter of James Davies' Life and Death book talks about this. Don't play unworking moves just to make opponent answer. You might get 1 point for "free", but lose very valuable ko threat.

Sometimes a peep is very good attacking tactic, sometimes it spoils aji that would be available if the opponent's group wasn't so strong.

Then there's "sente" moves that aren't nowhere big enough to warrant responding. Opponent makes a single-purpose sente with 5 point follow-up. You ought to make sente with bigger follow-up that also has other implications. I know this in theory, but find it hard to question opponent's intentions. Perhaps the whole concept of "move you must answer" is giving us amateurs warped view of the game. Respond only when the response is indeed the best move on board! Watching professional games helps. Every time they respond to move it feels like *they* are the ones getting benefit from the exchange. It's real eye-opener.
Violence
Lives in sente
Posts: 754
Joined: Thu Apr 22, 2010 1:12 am
Rank: Something Dan
GD Posts: 720
Has thanked: 9 times
Been thanked: 144 times

Re: illusionary sente

Post by Violence »

Mingjiu started grinding the idea into my head whenever I would show him games of mine, and he'd stop me, remove a few stones and say, "Bad Exchange!"

The way I look at it is to start thinking of your options, and ask yourself if you're overcommitting to something when you can keep something in reserve to play differently later in the game. Never play sente for sente's sake, you'll just lose.
Post Reply