CryptoNote technical discussion and Chess Challenge - page 31.

LucyLovesCrypto

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Quote from: ArticMine on December 30, 2015, 10:20:02 AM

Quote from: XMRpromotions on December 30, 2015, 03:13:41 AM

...

Why not 48. Rc1 Nf3+ 49. Bxf3 instead?

I am looking at 48. Rc1 Nxf3+ 49. Bxf3 Rxc1 50. Kxc1 Rxf3 51.Ra2 getting behind our passed pawn.

51. ... Rf1+ 52. Kc2 Rf2+ 53. Kb3 Rf3+ etc. The king cannot escape the checks

I am looking at.

48. Bb7 Rcc3 49. a6 Nf3+ 50 Ke2 Re3+ 51 Kf2 threatening a7

48.Bb7 will make advancing our pawn easier

48.Bb7 ArticMine, LucylovesCrypto
48.Rc1 XMRpromotions

ArticMine

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Quote from: XMRpromotions on December 30, 2015, 03:13:41 AM

...

Why not 48. Rc1 Nf3+ 49. Bxf3 instead?

I am looking at 48. Rc1 Nxf3+ 49. Bxf3 Rxc1 50. Kxc1 Rxf3 51.Ra2 getting behind our passed pawn.

51. ... Rf1+ 52. Kc2 Rf2+ 53. Kb3 Rf3+ etc. The king cannot escape the checks

I am looking at.

48. Bb7 Rcc3 49. a6 Nf3+ 50 Ke2 Re3+ 51 Kf2 threatening a7

XMRpromotions

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Quote from: ArticMine on December 29, 2015, 10:02:22 PM

Edit 2 ~~48. Rc1~~

Edit:

Quote from: XMRpromotions on December 29, 2015, 09:36:19 PM

I spent time looking at Rcc3 for black instead of Kf5:(
...

So did I

On further analysis. I am playing 48. Bb7. Since after 48. Rc1 Nf3. 49 Kd1 fails to 49. ... Rd3+ 50. Ke2 Rc1 51 Kd3 Rd1+ loosing the bishop.

Why not 48. Rc1 Nf3+ 49. Bxf3 instead?

I am looking at 48. Rc1 Nxf3+ 49. Bxf3 Rxc1 50. Kxc1 Rxf3 51.Ra2 getting behind our passed pawn.

ArticMine

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Edit 2 ~~48. Rc1~~

Edit:

Quote from: XMRpromotions on December 29, 2015, 09:36:19 PM

I spent time looking at Rcc3 for black instead of Kf5:(
...

So did I

On further analysis. I am playing 48. Bb7. Since after 48. Rc1 Nf3. 49 Kd1 fails to 49. ... Rd3+ 50. Ke2 Rc1 51 Kd3 Rd1+ loosing the bishop.

XMRpromotions

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I spent time looking at Rcc3 for black instead of Kf5:(

48.Rc1

We will lose our f3 pawn but I cannot see how to save it anyway after 48.Ke1 Kf4. I think Rc1 gives us much better chances at counterplay than the passive 48.Ke1

I cannot see any useful moves for either our b2 rook or bishop. There are few options besides 48.Rc1 and 48.Ke1 as far as I can tell.

boolberry

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Current position
Based on the votes in this thread Team Boolberry has chosen to play Kf5. Now it is time for Team Monero to respond. I will plan to count votes again tomorrow at approximately 0:00 UTC.

Team Monero (white pieces) vs. Team Boolberry (black pieces)
white to move

Game PGN:

Code:

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.c4 Nc6 6.Qe3 g6 7.Nc3 Bg7 8.Be2 Nf6 9.O-O O-O 10.h3 Nd7 11.b3 Nc5 12.Bb2 f5 13.exf5 Bxf5 14.Rad1 Qa5 15.Rd2 Rf6 16.Nd5 Re6 17.Qf4 Ne4 18.Bxg7 Kxg7 19.Rb2 Nc3 20.Nd4 Re5 21.Bf3 Nxd5 22.Bxd5 Qc3 23.Nxf5+ Rxf5 24.Qd2 Qxd2 25.Rxd2 Rb8 26.a3 e5 27.Be6 Rf6 28.Bd5 Nd4 29.b4 b6 30.Rb2 g5 31.a4 Rff8 32.Rfb1 Rfc8 33.f3 Kf6 34.g3 Rc7 35.Rf1 Nf5 36.Kf2 h5 37.Rd1 Rg7 38.Be4 Nd4 39.Rg1 Rf8 40.Ke3 Rc7 41.Bd5 b5 42.cxb5 axb5 43.a5 Rc3+ 44.Kd2 Rfc8 45.Rf1 Ra3 46.h4 gxh4 47.gxh4 Kf5

tifozi

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Kf5 (boolberry, tifozi)

with Kf4 as followup pressure to capture the f pawn.

boolberry

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Quote from: XMRpromotions on December 26, 2015, 05:10:15 PM

My initial concern was 46.h4 gxh4 47.gxh4 Rcc3

However now I am seeing 48.Ra2! where black cannot capture on f3.

48.Ra2 Nxf3+
49.Bxf3 Rxf3
50.Rxa3 Rxf1
51.a6 wins

(initially I forgot the f3 rook was pinned making (50.Rxa3 Rxa3 impossible)

48.Rxa2 Kxc3 also looks okay for us at first glance.

I want to avoid Rcc3 for this reason and will vote for Kf5 instead. If 48.Ra2 Rxa2+ 49.Bxa2 Rc2+ wins the bishop and the game

Kf5: boolberry

boolberry

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Current position
Based on the votes in this thread Team Monero has chosen to play gxh4. Now it is time for Team Boolberry to respond. I will plan to count votes again tomorrow at approximately 0:00 UTC.

Team Monero (white pieces) vs. Team Boolberry (black pieces)
black to move

Game PGN:

Code:

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.c4 Nc6 6.Qe3 g6 7.Nc3 Bg7 8.Be2 Nf6 9.O-O O-O 10.h3 Nd7 11.b3 Nc5 12.Bb2 f5 13.exf5 Bxf5 14.Rad1 Qa5 15.Rd2 Rf6 16.Nd5 Re6 17.Qf4 Ne4 18.Bxg7 Kxg7 19.Rb2 Nc3 20.Nd4 Re5 21.Bf3 Nxd5 22.Bxd5 Qc3 23.Nxf5+ Rxf5 24.Qd2 Qxd2 25.Rxd2 Rb8 26.a3 e5 27.Be6 Rf6 28.Bd5 Nd4 29.b4 b6 30.Rb2 g5 31.a4 Rff8 32.Rfb1 Rfc8 33.f3 Kf6 34.g3 Rc7 35.Rf1 Nf5 36.Kf2 h5 37.Rd1 Rg7 38.Be4 Nd4 39.Rg1 Rf8 40.Ke3 Rc7 41.Bd5 b5 42.cxb5 axb5 43.a5 Rc3+ 44.Kd2 Rfc8 45.Rf1 Ra3 46.h4 gxh4 47.gxh4

XMRpromotions

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Quote from: LucyLovesCrypto on December 28, 2015, 01:46:37 AM

Quote from: ArticMine on December 27, 2015, 09:43:08 PM

47. gh4

gh4

47.gxh4 (ArticMine, LucyLovesCrypto, XMRpromotions)

LucyLovesCrypto

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Quote from: ArticMine on December 27, 2015, 09:43:08 PM

47. gh4

gh4

ArticMine

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47. gh4

boolberry

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Current position
Based on the votes in this thread Team Boolberry has chosen to play gxh4. Now it is time for Team Monero to respond. I will plan to count votes again tomorrow at approximately 0:00 UTC.

Team Monero (white pieces) vs. Team Boolberry (black pieces)
white to move

Game PGN:

Code:

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.c4 Nc6 6.Qe3 g6 7.Nc3 Bg7 8.Be2 Nf6 9.O-O O-O 10.h3 Nd7 11.b3 Nc5 12.Bb2 f5 13.exf5 Bxf5 14.Rad1 Qa5 15.Rd2 Rf6 16.Nd5 Re6 17.Qf4 Ne4 18.Bxg7 Kxg7 19.Rb2 Nc3 20.Nd4 Re5 21.Bf3 Nxd5 22.Bxd5 Qc3 23.Nxf5+ Rxf5 24.Qd2 Qxd2 25.Rxd2 Rb8 26.a3 e5 27.Be6 Rf6 28.Bd5 Nd4 29.b4 b6 30.Rb2 g5 31.a4 Rff8 32.Rfb1 Rfc8 33.f3 Kf6 34.g3 Rc7 35.Rf1 Nf5 36.Kf2 h5 37.Rd1 Rg7 38.Be4 Nd4 39.Rg1 Rf8 40.Ke3 Rc7 41.Bd5 b5 42.cxb5 axb5 43.a5 Rc3+ 44.Kd2 Rfc8 45.Rf1 Ra3 46.h4 gxh4

languagehasmeaning

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Quote from: tifozi on December 26, 2015, 07:34:03 PM

gxh4 2 votes (boolberry, tifozi)

kudos to those who were opposing draw earlier. I think a non draw outcome is a real possibility now.

The position definitely looked drawish earlier and that result may still occur. I just felt like that since both sides had possible pawn breaks to open the position a draw at that time was premature.

I like our position right now but we will need to keep a careful watch on the a5 pawn for the rest of the game. Whites bishop being on a light square (controlling the queening square a8) makes it very dangerous.

gxh4 3 votes (boolberry, tifozi, languagehasmeaning)

tifozi

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gxh4 2 votes (boolberry, tifozi)

kudos to those who were opposing draw earlier. I think a non draw outcome is a real possibility now.

boolberry

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1 vote gxh4 (boolberry)

boolberry

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Current position
Based on the votes in this thread Team Monero has chosen to play h4. Now it is time for Team Boolberry to respond. I will plan to count votes again tomorrow at approximately 0:00 UTC.

Team Monero (white pieces) vs. Team Boolberry (black pieces)
black to move

Game PGN:

Code:

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.c4 Nc6 6.Qe3 g6 7.Nc3 Bg7 8.Be2 Nf6 9.O-O O-O 10.h3 Nd7 11.b3 Nc5 12.Bb2 f5 13.exf5 Bxf5 14.Rad1 Qa5 15.Rd2 Rf6 16.Nd5 Re6 17.Qf4 Ne4 18.Bxg7 Kxg7 19.Rb2 Nc3 20.Nd4 Re5 21.Bf3 Nxd5 22.Bxd5 Qc3 23.Nxf5+ Rxf5 24.Qd2 Qxd2 25.Rxd2 Rb8 26.a3 e5 27.Be6 Rf6 28.Bd5 Nd4 29.b4 b6 30.Rb2 g5 31.a4 Rff8 32.Rfb1 Rfc8 33.f3 Kf6 34.g3 Rc7 35.Rf1 Nf5 36.Kf2 h5 37.Rd1 Rg7 38.Be4 Nd4 39.Rg1 Rf8 40.Ke3 Rc7 41.Bd5 b5 42.cxb5 axb5 43.a5 Rc3+ 44.Kd2 Rfc8 45.Rf1 Ra3 46.h4

paratox

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EDIT: Ok now I see it too.

h4: ArticMine, XMRpromotions, paratox

XMRpromotions

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Quote from: ArticMine on December 26, 2015, 03:12:54 PM

46. h4. I prefer h4 since pawns belong on the opposite colour to the bishop. Also after g4 the f4 square is very weak.

I will change my vote. I agree about the f4 square and where our pawns would ideally belong.

My initial concern was 46.h4 gxh4 47.gxh4 Rcc3

However now I am seeing 48.Ra2! where black cannot capture on f3.

48.Ra2 Nxf3+
49.Bxf3 Rxf3
50.Rxa3 Rxf1
51.a6 wins

(initially I forgot the f3 rook was pinned making (50.Rxa3 Rxa3 impossible)

48.Rxa2 Kxc3 also looks okay for us at first glance.

g4: paratox
h4: ArticMine, XMRpromotions

ArticMine

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Monero Core Team

46. h4. I prefer h4 since pawns belong on the opposite colour to the bishop. Also after g4 the f4 square is very weak.

Topic: CryptoNote technical discussion and Chess Challenge - page 31. (Read 96133 times)