Author Topic: Chess Thread II  (Read 25477 times)

Offline Mr.Obvious

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Re: Chess Thread II
« Reply #210 on: July 19, 2018, 04:41:05 PM »
I thought of 32. c4, but I could see it wouldn't do much good. Mr. Obvious played too well and I couldn't find any way to exploit any weak points in his position, since he didn't seem to have any.

My style is most often to focus on defense, until i find an opening I'm sure of. In this game, The first break came by 'trapping' your knight. Though it was not a big advantage.
Sometimes my strategy works, but there is Also a definite disadvantage to not 'taking charge'. And often The times i manage to win, it comes down to trading down on pieces if I have an advantage, rather than 'cleverly' backing a king into a corner, earlier on.

Great game unbeliever, thank you. Great fun.
« Last Edit: July 19, 2018, 04:44:38 PM by Mr.Obvious »
"If we have to go down, we go down together!"
- Your mum, requesting 69 last night.

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Offline Mr.Obvious

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Re: Chess Thread II
« Reply #211 on: July 19, 2018, 04:42:06 PM »
Droidfish had shown a definite advantage for Black since not long before the queen exchange; the best move it came up with was 32. c4 which seems best described as the move that Black could have taken the least advantage of.  Interesting to watch on the computer end!

I'm quite interested in that feedback :)
"If we have to go down, we go down together!"
- Your mum, requesting 69 last night.

Atheist Mantis does not pray.

Offline trdsf

Re: Chess Thread II
« Reply #212 on: July 19, 2018, 05:08:36 PM »
I'm quite interested in that feedback :)
I'll walk through the analysis when I get home; it's not terribly detailed, just a +/- score, positive is advantage White, negative is advantage Black.
"My faith in the Constitution is whole, it is complete, it is total, and I am not going to sit here and be an idle spectator to the diminution, the subversion, the destruction of the Constitution." -- Barbara Jordan

Re: Chess Thread II
« Reply #213 on: July 19, 2018, 06:53:14 PM »
Here's a game I played at the local coffee shop the other day, it's got some interesting drama to it:

1. d4........d5
2. Bf4.......Nf6
3. Nd2......Bf5
4. Nf3.......e6
5. e3........Nh5
6. Bg3......Nd7
7. Bh4......Be7
8. Bxe7.....Qxe7
9. c4........Nhf6
10. cxd5...exd5
11. Rc1.....c5
12. Bb5.....c4
13. Ne5.....a6
14. Nxd7...axb5
15. Nxf6....Qxf6
16. 0-0

If I hadn't castled his next move would've prevented any hope of my doing so later.

16 ............Bd3
17. Re1.....Rxa2
18. b3.......0-0
19. bxc4....bxc4
20. Nf3......Be4
21. Nd2.....Bd3
22. f3........Rfa8
23. Nb1.....Qg6
24. g3.......Qh6
25. h4.......Qg6
26. g4.......Qd6
27.f4.........Be4
28. Re2.....Bf3

This is where things got interesting. Black has my Rook pinned and attacked twice, but his back rank is weak so...

29. Rxa2

He can't take my Queen, since I'd take his other Rook with check and he'd have to interpose his Queen and lose it, then his Bishop.

29.. ..........Rxa2
30. Qxf3....b5
31. Nc3.....Ra5
32. Qxd5...Qf6
33. g5.......Qe7
34. Kf2......h6
35. Rb1.....Ra3
36. Ne4.....Ra2+
37. Kg3.....hxg5
38. hxg5...Qa3
39. Qd8+...Kh7
40. Rh1+...Kg6
41. Kf3......c3
42. Rh6+

This was pretty, and I think I've mentioned how much I love sacrificing. It leads to a forced mate, which is nice, since he can't decline the Rook.

43. ...........gxf6
44. Qg8+...Kh5
45. Qxf7+..Kh4
46. Ng3 Resigns

He can't stop the mate on h5.



« Last Edit: July 20, 2018, 01:26:32 PM by Unbeliever »
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Offline trdsf

Re: Chess Thread II
« Reply #214 on: July 19, 2018, 08:25:53 PM »
Home again.  I'm using an online analysis board that uses Stockfish, which is the engine Droidfish is based on.  I'm taking the simple-minded view that a move in the score of 1.0 will be a mistake, and 2.0 or more a blunder.

1. d4    +0.1 e6   +0.2
2. Bf4   +0.1 Nc5  +0.4
3. Nf3   +0.3 d5   +0.3
4. e3    +0.2 Nf6  +0.3
5. Nbd2  +0.2 Bd6  +0.3
6. Bg3   +0.3 O-O  +0.3
7. c3    ±0   Re8  +0.3
8. Bd3   -0.5 e5   -0.1
9. dxe5  -0.3 Nxe5 -0.2
10. Nxe5  -0.4 Bxe5 -0.2
11. Bxe5  -0.4 Rxe5 -0.3
12. Qc2   -0.5 c5   -0.2
13. Nf3   -0.4 Re8  -0.2
14. Ng5   -0.6 h6   -0.4
15. Bh7+  -1.6 Kf8  -1.8
Probably have to call that 15. Bh7+? - seriously damaged White's position.  Stockfish recommends Nf3 -0.4
16. Nxf7  -1.9 Qd7  -1.1
17. Bg6   -1.4 Re7  -1.2
18. Nxh6  -2.0 gxh6 -1.9
19. O-O-O -2.0 Qe6  -2.0
20. Rhe1  -2.3 b6   -2.1
21. f3    -2.5 a5   -1.2
Probably have to call that 21. ... a5? Stockfish recommends Kg7 -2.5
22. g4    -1.5 b5   -0.2
Probably have to call that 22. ... b5?  Stockfish recommends Kg7
23. Kb1   -1.7 b4   -0.4
23 skidoo indeed.  From Stockfish's numbers, I'd want to mark that 23. Kb1? b4?
Stockfish recommends 23. Qd2 ±0 which would have restored the game to level.  Responding to 23. Kb1 Stockfish recommends 23. ... Kg7 -1.6 and pressing the attack on White's bishop.
24. Bf5   -1.6 Qe5  -1.3
Another missed opportunity for White; 24. h4 -0.4 would have lost no ground.
25. f4    -4.3 Bxf5 -4.3
There's really nothing to call that but 25. f4?? -- Stockfish recommended Bxc8 -1.9 and taking Black's bishop.
26. gxf5  -4.4 Qe4  -4.4
27. Qxe4  -4.7 dxe4 -2.7
Another missed opportunity, this one for Black.  Stockfish recommends 27. ... Rxe4 -4.7 -- gonna have to call that 27. ... dxe4?? for the breathing space it afforded White.
28. Rd6   -2.9 Kf7  -2.7
29. Red1  -3.4 bxc3 -3.5
30. bxc3  -4.7 Rb8+ -4.7
This looks like the final nail in the coffin; Stockfish recommends 30. Rc1 -3.5 which doesn't do much more than hold the line and gain another couple moves before it starts moving south again.
31. Kc2   -5.6 Reb7 -5.6
And White closes the lid over himself.  Stockfish's recommendation is 31. Kc1 -4.7 so it's kind of all downhill from here; there's not so much a good move as there is a least worst move.  Even assuming best play, White is out of options.
32. resigns

Basically, it looks like the game was pretty level, tilting slightly towards Black but not by much, until 15. Bh7+ and it was all Black from there.  Which I suppose only goes to show that putting your opponent in check is not always the best option.
"My faith in the Constitution is whole, it is complete, it is total, and I am not going to sit here and be an idle spectator to the diminution, the subversion, the destruction of the Constitution." -- Barbara Jordan

Re: Chess Thread II
« Reply #215 on: July 19, 2018, 08:33:45 PM »
Well, there's an adage that says "always check, it might be mate." But I guess an adage is just that, not a rule!

;-)
God Not Found
"There is a sucker born-again every minute." - C. Spellman

Offline trdsf

Re: Chess Thread II
« Reply #216 on: July 20, 2018, 12:01:43 AM »
Well, there's an adage that says "always check, it might be mate." But I guess an adage is just that, not a rule!

;-)
Well, hell, my game is backgammon anyway.  I was just interpreting Stockfish as best I could, and I welcome correction. :D
"My faith in the Constitution is whole, it is complete, it is total, and I am not going to sit here and be an idle spectator to the diminution, the subversion, the destruction of the Constitution." -- Barbara Jordan

Offline Mr.Obvious

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Re: Chess Thread II
« Reply #217 on: July 20, 2018, 03:45:07 AM »
Here's a game I played at the local coffee shop the other day, it's got some interesting drama to it:

1. d4........d5
2. Bf4.......Nf6
3. Nd2......Bf5
4. Nf3.......e6
5. e3........Nh5
6. Bg3......Nd7
7. Bh4......Be7
8. Bxe7.....Qxe7
9. c4........Nhf6
10. cxd5...exd5
11. Rc1.....c5
12. Bb5.....c4
13. Ne5.....a6
14. Nxd7...axb5
15. Nxf6....Qxf6
16. 0-0

If I hadn't castled his next move would've prevented any hope of my doing so later.

16 ............Bd3
17. Re1.....Rxa2
18. b3.......0-0
19. bxc4....bxc4
20. Nf3......Be4
21. Nd2.....Bd3
22. f3........Rfa8
23. Nb1.....Qg6
24. g3.......Qh6
25. h4.......Qg6
26. g4.......Qd6
27.f4.........Be4
28. Re2.....Bf3

This is where things got interesting. Black has my Rook pinned and attacked twice, but his back rank is weak so...

29. Rxa2

He can't take my Queen, since I'd take his other Rook with check and he'd have to interpose his Queen and lose it, then his Bishop.

30. ..........Rxa2
31. Qxf3....b5
32. Nc3.....Ra5
33. Qxd5...Qf6
34. g5.......Qe7
35. Kf2......h6
36. Rb1.....Ra3
37. Ne4.....Ra2+
38. Kg3.....hxg5
39. hxg5...Qa3
40. Qd8+...Kh7
41. Rh1+...Kg6
42. Kf3......c3
43. Rh6+

This was pretty, and I think I've mentioned how much I love sacrificing. It leads to a forced mate, which is nice, since he can't decline the Rook.

43. ...........gxf6
44. Qg8+...Kh5
45. Qxf7+..Kh4
46. Ng3 Resigns

He can't stop the mate on h5.

Is there a mistake in the code around move 29 to 30?
or is it just me?
"If we have to go down, we go down together!"
- Your mum, requesting 69 last night.

Atheist Mantis does not pray.

Re: Chess Thread II
« Reply #218 on: July 20, 2018, 01:24:05 PM »
Ah, I see your point. The moves are correct, but the numbering is wrong. I'll go fix it.


OK, I think it's good now. Thanks for seeing that!
« Last Edit: July 20, 2018, 01:27:35 PM by Unbeliever »
God Not Found
"There is a sucker born-again every minute." - C. Spellman

Offline Baruch

Re: Chess Thread II
« Reply #219 on: July 20, 2018, 06:58:14 PM »
Ah, I see your point. The moves are correct, but the numbering is wrong. I'll go fix it.


OK, I think it's good now. Thanks for seeing that!

I have heard of re-fried beans, not re-fried chess.
Ha’át’íísh baa naniná?
Azee’ ła’ish nanídį́į́h?
Táadoo ánít’iní.
What are you doing?
Are you taking any medications?
Don't do that.

Offline Cavebear

Re: Chess Thread II
« Reply #220 on: July 21, 2018, 01:46:55 AM »
May we see the list of moves?
Atheist born, atheist bred.  And when I die, atheist dead!

Re: Chess Thread II
« Reply #221 on: August 04, 2018, 07:09:27 PM »
Here's a really amazing game!


God Not Found
"There is a sucker born-again every minute." - C. Spellman

Re: Chess Thread II
« Reply #222 on: August 04, 2018, 07:11:49 PM »
May we see the list of moves?
Sorry Cavebear, which moves are you referring to?
God Not Found
"There is a sucker born-again every minute." - C. Spellman

Re: Chess Thread II
« Reply #223 on: August 08, 2018, 06:16:08 PM »
I played a couple of pretty good games at the coffee shop yesterday, y'all might find them of some interest:


I was playing the White side:

1. e4.......e5
2. Nf3......Nc6
3. Bc4......d6
4. Nc3......Be6
5. Bb3......Nf6
6. 0-0.......Be7
7. d4.........Bg4
8. d5.........Nd4
9. Qd3.......Nxb3
10. axb3....Bh5
11. Ne2.....Bg6
12. Ng3.....Qd7
13. c4........Qg4
14. h3........Qd7
15. Be3......b6
16. Ne1......c6
17. Qd2......Nxe4
18. Nxe4.....Bxe4
19. Bxb6.....0-0
20. f3.........Bg6
21. Bxc6.....Qxc6
22. Bxa7.....Rxa7
23. Rxa7.....Qb6+
24. Qf2.......Bd8
25. Ra3.......Qb7
26. Nc2.......Bb3
27. Ne3.......Bc5
28. Rfa1......Bxa3
29. Rxa3......Ra8
30. Ra4........Ra6
31. Nd5........Rxa4
32. bxa4.......Qb3
33. Qb6

This threatens mate, so he must exchange Queens.

33.      ........Qxb6
34. Nxb6......Bc2
35. a5..........Bb3
36. a6..........f5
37. a7..........e4
38. fxe4........fxe4
39. a8 (Q).....Kf7
40. Qxe4.......Resigns
« Last Edit: August 08, 2018, 06:21:53 PM by Unbeliever »
God Not Found
"There is a sucker born-again every minute." - C. Spellman

Re: Chess Thread II
« Reply #224 on: August 08, 2018, 06:19:40 PM »
Here's the second one. I was playing a different opponent here, so I'm playing the White pieces again:


1. e4........e5
2. Nf3.......d6
3. d4.........cxd4
4. Nxd4.....Nf6
5. Nc3.......a6
6. a4.........Nbd7
7. a5.........e5
8. Nf5........g6
9. Ne3.......Nc5
10. f3........Bg7
11. b4.......Ne6
12. Ncd5....Nxd5
13. Nxd5....0-0
14. Be3......Nd4
15. c3........Nb5
16. Bc4......Qh4+
17. Bf2.......Qg5
18. h4

It looks like I made a blunder with h4, but I was trying to lure his Queen into a trap. I didn't manage to win his Queen, though, but I did make him give up a Bishop to save it.

18. ........Qxg7
19. Ke2......Bg4
20. Qd3......f5
21. Rag1....Bxf3
22. Qxf3....Qxf3
23. Kxf3.....fxe4
24. Ke2......Rf3
25. Nb6+...Kh8
26. Nxa8....Nxc3
27. Ke1......e3
28. Bg3......Ne4
29. Bd5......Resigns
God Not Found
"There is a sucker born-again every minute." - C. Spellman