What ratings are equivalent to these checkmates?

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magipi
JohnPedersens wrote:

I dont really understand what you're saying, but I can tell you that intelligence is directly corrolated to intelligence in numerous ways, a 180 iq player will crush a 100 iq player with a tenth the training any day of the week, a 100 iq player can only ever hope of reaching 1850, to get a title you need atleast 120 iq.

And your sources are? Your own head? Thin air? Probably.

I don't understand why people decide to write nonsense like that.

checkmator11111
JohnPedersens wrote:

I dont really understand what you're saying, but I can tell you that intelligence is directly corrolated to intelligence in numerous ways, a 180 iq player will crush a 100 iq player with a tenth the training any day of the week, a 100 iq player can only ever hope of reaching 1850, to get a title you need atleast 120 iq.

Hikaru has 106 IQ apparently

NorthernEarl

Yeah cool

MARattigan

JohnPedersens wrote:

... I can tell you that intelligence is directly corrolated to intelligence in numerous ways ...

Astounding! I wonder if it's corrolated to spelling too.

Zachy42

Noice

Reactyv

rook 1k is not a good scale. Even 500s at my level can do it

Reactyv
Eatham1 wrote:

The ratings are irrelevant if you know them you can do them

Yes, exactly, if you know the theory, you can set it into motion

ThrillerFan
Reactyv wrote:
Eatham1 wrote:

The ratings are irrelevant if you know them you can do them

Yes, exactly, if you know the theory, you can set it into motion

Exactly! Endgames are common knowledge. You know them or you don't.

Like for the B+N vs loan K, you either know the W method with the Knight, you know the shrinking triangles method, or you flat out don't know how to mate with Bishop and Knight.

For me, it's the W method.

ThrillerFan
ThrillerFan wrote:
Reactyv wrote:
Eatham1 wrote:

The ratings are irrelevant if you know them you can do them

Yes, exactly, if you know the theory, you can set it into motion

Exactly! Endgames are common knowledge. You know them or you don't.

Like for the B+N vs loan K, you either know the W method with the Knight, you know the shrinking triangles method, or you flat out don't know how to mate with Bishop and Knight.

For me, it's the W method.

Go to Learn --> Endgames, and under Checkmates, choose Bishop and Knight. See how long it takes you. I did it in 2 minutes 13 seconds.

MARattigan
ThrillerFan wrote:
ThrillerFan wrote:
Reactyv wrote:
Eatham1 wrote:

The ratings are irrelevant if you know them you can do them

Yes, exactly, if you know the theory, you can set it into motion

Exactly! Endgames are common knowledge. You know them or you don't.

Like for the B+N vs loan K, you either know the W method with the Knight, you know the shrinking triangles method, or you flat out don't know how to mate with Bishop and Knight.

For me, it's the W method.

Go to Learn --> Endgames, and under Checkmates, choose Bishop and Knight. See how long it takes you. I did it in 2 minutes 13 seconds.

I only get to see the first position, but about that I would say you can't always guarantee to get into the endgame with the lone king trapped on two squares in a corner of the same colour as that on which the bishop stands.

MARattigan
ThrillerFan wrote:
Reactyv wrote:
Eatham1 wrote:

The ratings are irrelevant if you know them you can do them

Yes, exactly, if you know the theory, you can set it into motion

Exactly! Endgames are common knowledge. You know them or you don't.

Like for the B+N vs loan K, you either know the W method with the Knight, you know the shrinking triangles method, or you flat out don't know how to mate with Bishop and Knight.

For me, it's the W method.

Neither of the methods you mention is a complete prescription for playing the endgame. Neither method addresses any positions with a mate depth over 20 moves, while the average mate depth from winning positions (the great majority if you only count positions with a ply count of 0 under the 50 move rule or consider the game under current FIDE basic rules which don't include the 50 move rule) is around 27 moves and the maximum 33 moves. Also neither method, as usually explained, is accurate.

The W method in particular is simply a method of driving the king from a "wrong" corner to a "right" corner. I suggested here that the best defence against that for the lone king is to refuse to go into the "wrong" corner in the first place.

By the way the "W method" is a term invented by a Wikipaedia editor (actually "W manoeuvre") . I still call it Philidor's method, because I don't believe it should be the function of Wikipaedia editors to write eminent people out of the history of the game.

KeSetoKaiba

@MARattigan, perhaps in practical chance just to test if the other player knows the endgame technique, but trying to flee into the "correct" corner gets checkmated faster with the same W-maneuver. All that happens is you shift 2 files (or ranks) over sooner, whereas the defending King heading towards the "wrong" corner prolongs this a few moves.

MARattigan

But as I said, many people don't really know the technique they've only learned Philidor's method by rote. There's no particular advantage in losing accurately. A successful swindle inaccurately is preferable. And in fact in many cases you don't get into the same W manoevre faster (except possibly in the last few moves).

magipi

I'm pretty sore that I read the name "W method" 20 years before wikipedia was invented. However, I failed to find the book where I saw that, so maybe I'm wrong.

esploratore2
Marko-Gjakovski wrote:

queen-400 rook- 800 or 900 2 bishops - 1200 N+B- 1700

I agree with this based on the experience with a beginner friend of mine in 2019: we prepared chessboards with just king vs queen + king etc. and I let her try, she did the queen easily, in just over the minimum amount of moves you would mathematically need, rook wasn't making any progress, so had to guide her a bit and took a considerably higher amount of moves and it turned out what we both thought was a mistake (moving king up from 8th to 7th rank, on my king's right) turned out to be the right move cause at that point I only had a legal move, so rook went up, forcing my king down and then checkmated; the double bishop again was quite difficult at that level, took over 50 moves (after the draw due to the 50 moves rule we made another board starting from the final position) and the knight was taking over 100 moves just to corner the king, then I'm fairly sure it's relatively easy once cornered, just harder to get there.

As an intermediate player also, I might have made some incorrect moves sometimes, which might've made it slightly easier.

So based on how easy it was with the queen, 400 sounds fair, based on the fact her best games looked around 600-700 level makes sense I had to help to do the rook one; bishops also agree cause it took really a lot to find and 1200 is way above that level, for knight 1700 seems quite a lot but there's also a huge jump, I'd say 1500-1700.

Obviously these ratings are all indicative, there's GM who failed under time pressure and there's people who can do it at very low rating, but I at least think that if you pick a random person below these thresholds they will probably not be able to do these successfully, at least the first tries.

As for me, always thought 1400 player, but not sure as I didn't play many games online, let's say no higher than 1400, first 2 are easy, double bishop and bishop + knight reasonable against a computer without time, but I think I'd run in trouble if I had limited time in a game at least with the bishop + knight one

Saintliy
user78003413님이 썼습니다:

I would guess

queen 700

rook 1000

2 bishops 1400

knight+bishop 2500

I did 2 bishops mate on 1200

Elite_Devansh

Hii

mirroredragon

"n+b - 1700"

me, peak 2000, cant do n+b

thepremover15

2r=375

q=425

r=575

2b=1025

b+n=1450