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been playing online computer chess last few weeks

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By:
politicspunter
When: 03 Jun 20 17:14

Jun 3, 2020 -- 11:07AM, Pleasegivemeanailedontip wrote:


By the way, that bishop and knight mate situation very rarely comes up over the board but is a good test. Here is a much better one and this similar situation comes up all the time.White- Rook on h1. King on b4. pawn on c4.Black- Rook on g2. King on e5. White to play. What result?Seemed to get the job done as white by parking my rook on the d file to block the king from joining in. Was there a better way?


That is the correct starting technique. You first of all have to cut the opposing king off from your pawn. It's still tricky to win though unless you know the correct method. What if black just keeps checking with his rook on the second rank? How do you deal with it?

By:
Charlie
When: 03 Jun 20 17:16
I can see the win in elisjohn's position now.
By:
Pleasegivemeanailedontip
When: 03 Jun 20 17:19
That is the correct starting technique. You first of all have to cut the opposing king off from your pawn. It's still tricky to win though unless you know the correct method. What if black just keeps checking with his rook on the second rank? How do you deal with it?

I need to think about that! I got his king over to f file first time which helped but struggling to repeat that
By:
Charlie
When: 03 Jun 20 17:24
pp
Are you still going on the earlier position?
By:
politicspunter
When: 03 Jun 20 17:25

Jun 3, 2020 -- 11:24AM, Charlie wrote:


pp Are you still going on the earlier position?


The elisjohn one with his pawn on c7 etc?

By:
Charlie
When: 03 Jun 20 17:26
yes
By:
politicspunter
When: 03 Jun 20 17:26
Yes, have you found something?
By:
Charlie
When: 03 Jun 20 17:27
I'm pretty sure I can see the win now.
By:
Charlie
When: 03 Jun 20 17:28
If you had a minute left on the clock I wouldn't have been confident but probably would have got there eventually. Or maybe lost on time. I think there are a few nuances in the position.
By:
politicspunter
When: 03 Jun 20 17:28
Yes, Black is hopelessly tied up. Once white gets his king to d6 and rook to e2 there is no defence.
By:
politicspunter
When: 03 Jun 20 17:29
I wouldn't win it in a minute!
By:
Charlie
When: 03 Jun 20 17:29
How do you do that though?
By:
zorrostrikes
When: 03 Jun 20 17:29
I tried a few times to follow chess books. And I find the notation is overly complex. Bxf5!, Nxf3! In club games I gave up on it. Two knights sometimes can tmake same piece. Why no simply write a2-a4. C8-d7. That way what occupies one square goes to another. No possible mix ups.
By:
Charlie
When: 03 Jun 20 17:30
Once King goes to d6 you check on f6.
By:
politicspunter
When: 03 Jun 20 17:31

Jun 3, 2020 -- 11:30AM, Charlie wrote:


Once King goes to d6 you check on f6.


1. Kf5 Rf8+ 2. Ke6 Re8+ 3. Kd6 Rf8 4. Re2 Rg8 5. f4 Rg6+ 6. Re6 Rg8 7 f5 etc.

By:
Charlie
When: 03 Jun 20 17:35

Jun 3, 2020 -- 11:29AM, zorrostrikes wrote:


I tried a few times to follow chess books. And I find the notation is overly complex. Bxf5!, Nxf3! In club games I gave up on it. Two knights sometimes can tmake same piece. Why no simply write a2-a4. C8-d7. That way what occupies one square goes to another. No possible mix ups.


It is done that way sometimes but is unnecessarily long. It can be qualified (e.g. N(g) if there is any ambiguity.

By:
Charlie
When: 03 Jun 20 17:36
No pp, when king goes to e6 black doesn't check he goes Rf3.
By:
politicspunter
When: 03 Jun 20 17:37

Jun 3, 2020 -- 11:36AM, Charlie wrote:


No pp, when king goes to e6 black doesn't check he goes Rf3.


Let me have a look at that one Charlie.

By:
Charlie
When: 03 Jun 20 17:38
I think we need to get the move order correct here.
By:
politicspunter
When: 03 Jun 20 17:45

Jun 3, 2020 -- 11:37AM, politicspunter wrote:


Jun  3, 2020 --  4:36PM, Charlie wrote:No pp, when king goes to e6 black doesn't check he goes Rf3.Let me have a look at that one Charlie.


White just brings his king back to e4, black rook moves, f pawn advances. Black can try checking from over on the a or b file but the f pawn is rolling and the king is close by.

By:
Charlie
When: 03 Jun 20 17:52

Jun 3, 2020 -- 10:50AM, Charlie wrote:


Thinking about it maybe white comes back and hides behind his f pawn, moves his rook to c3 and then pawn to f3 and king to f2. And continues slowly advancing up the board in a similar manner - rook to c4 etc. Have to be a bit careful that black doesn't chop c pawn to leave a drawn pawn ending. Lucena positions are also relevant here.


That was my initial plan and I think it's correct. Black checks on the e and f files, never on the a and b files. White hides behind his f pawns but still has to be careful that black can't just snaffle the c-pawn with his rook and be left with a ran pawn ending..

By:
Charlie
When: 03 Jun 20 17:54
I should have put that in English but you'll understand.
By:
politicspunter
When: 03 Jun 20 17:58
Tell you what, set up the original position. I will go white so my first move is Kf4.
By:
Charlie
When: 03 Jun 20 17:59
Rf8+
By:
politicspunter
When: 03 Jun 20 17:59
ke5
By:
Charlie
When: 03 Jun 20 18:00
Rf3
By:
politicspunter
When: 03 Jun 20 18:01
ke4
By:
Charlie
When: 03 Jun 20 18:01
Rf7
By:
politicspunter
When: 03 Jun 20 18:02
f4
By:
Charlie
When: 03 Jun 20 18:03
Are you confident of the pawn ending?
By:
Charlie
When: 03 Jun 20 18:04
Yes is the answer.
By:
Charlie
When: 03 Jun 20 18:04
Re7+
By:
politicspunter
When: 03 Jun 20 18:04
yes. My king can get in front of the f pawn if you chop off at c7
By:
politicspunter
When: 03 Jun 20 18:06
kf5
By:
Charlie
When: 03 Jun 20 18:07
Re1
By:
politicspunter
When: 03 Jun 20 18:08
kf6
By:
Charlie
When: 03 Jun 20 18:08
Rf1
By:
politicspunter
When: 03 Jun 20 18:09
f5
By:
Charlie
When: 03 Jun 20 18:10
Rf3
By:
darren_discombobulates_sports
When: 03 Jun 20 18:10
the site is down?
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