Life In 19x19

I just set up a new temporary room, L19 beginners tourney

ah, and got in one match!

kukula wrote:I just set up a new temporary room, L19 beginners tourney

ah, and got in one match!

Come over to the godiscussions.com room and play there. A lot of us are there to help.

If I issue a challenge, is there anyway to specify my opponent, or can anybody take up the challenge?

kukula wrote:If I issue a challenge, is there anyway to specify my opponent, or can anybody take up the challenge?

anyone can take it up, but you don't have to accept from anybody. if more than one person tries to join your game, you can choose from the drop down list which player to accept

you can also write the player's name you want to join your game in the space at the top of the setup box as a suggestion for others to see

xed_over wrote: you don't have to accept from anybody.

ah, thanks, I will be careful at the beginning of a match to look at the details in the setup box.

Not sure I understood the format for recording matches, but here is a report.

kukula vs. TominNJ

Game1: kukula(black) won by 22.5 points (the score computed was 17.5 but I had a komi of .5 instead of 5.5 so 22.5 is correct, right?)

Game2: kukula(white) won by TominNJ resigning. Maybe that 5.5 komi would have made up for the difference in territory, I don't know! You can look and see!

kukula wrote:Not sure I understood the format for recording matches, but here is a report.

kukula vs. TominNJ

Game1: kukula(black) won by 22.5 points (the score computed was 17.5 but I had a komi of .5 instead of 5.5 so 22.5 is correct, right?)

Game2: kukula(white) won by TominNJ resigning. Maybe that 5.5 komi would have made up for the difference in territory, I don't know! You can look and see!

For tie breaking purposes it would be good to have both players' full score. For simplicities sake write the score something like.

kukula 2-0 TominNJ
Game 1: Kukula(W) 37.5-15.0 TominNJ
Game2: TominNJ (Res)21.5-32.0 kukula

kukula (22k, White) vs TominNJ (25k, Black)
Result: 37.5 - 15.0, White wins by 22.5 points

Review:

[sgf-full](;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[9]KM[5.50]TM[300]OT[5x30 byo-yomi]
PW[kukula]PB[TominNJ]WR[22k]BR[25k]DT[2010-08-03]PC[The KGS Go Server at http://www.gokgs.com/]RE[W+22.50]
;B[cc]BL[279.806]
;W[fg]WL[295.903]
;B[ed]BL[271.156]
;W[gd]WL[289.816]
;B[ef]BL[266.03]C[Playing in the middle is often worrying short of points - White's idea of working around the edge is likely to play dividends unless you have a plan to use these stones to fight hard.]
;W[eg]WL[286.695]
(;B[ff]BL[253.081]TR[df][gf]C[Generally two pairs of stones like this is bad shape, as it encourages the opponent to hane at the head at either of the triangled points, which is generally good for the player doing it. Alternatives are D3 if you can handle the cut, D4 if you can't, or something quicker, like G5 (see variations).]
;W[gf]WL[285.079]
(;B[fe]BL[250.686]TR[dg]SQ[ee]C[Empty triangles are rarely good. They don't have many liberties for 3 stones, don't really enclose territory, don't really help with fighting (except in rare situations) and are very slow from the point of development. At best you could argue this gives Black a point at the square, but compare this to playing the triangle instead...]
;W[fd]WL[263.348]
;B[ge]BL[238.226]LB[ec:3][ee:2][df:1]C[You are running out of liberties - you're ok, but don't underestimate White getting 1 and 3 in if he gets sente.]
;W[he]WL[261.616]
(;B[ec]BL[224.308]C[White has too many cutting points, especially for the 2nd and 3rd lines where cut stones cannot run (see variation instead of this move)]
;W[hg]WL[255.291]
;B[fc]BL[214.118]
;W[gc]WL[253.497]
;B[gb]BL[205.137]
;W[df]WL[246.051]C[Painful]
;B[ee]BL[191.509]
;W[cg]WL[241.308]
;B[de]BL[189.022]
;W[ce]WL[237.259]
;B[cd]BL[184.039]
;W[be]WL[234.273]
;B[bd]BL[182.491]
;W[hb]WL[232.309]
;B[fb]BL[159.891]
;W[ha]WL[221.195]
;B[ga]BL[154.903]TR[ae]C[If White plays here, you can happily block. This is gote for you - the triangle lets you get points in sente and then come back to here. You got the point in the end, but White should ignore this and play on the left edge now.]
;W[ic]WL[213.055]
;B[ae]BL[140.188]
;W[af]WL[211.439]
;B[ad]BL[138.363]
;W[bg]WL[209.776]
;B[]BL[96.255]
;W[]WL[209.776]TW[ia][ib][hc][hd][id][ie][bf][cf][hf][if][ag][dg][gg][ig][ah][bh][ch][dh][eh][fh][gh][hh][ih][ai][bi][ci][di][ei][fi][gi][hi][ii]TB[aa][ba][ca][da][ea][fa][ab][bb][cb][db][eb][ac][bc][dc][dd])
(;B[hf]
;W[gg]
;B[hd]C[White has no way of resisting.]))
(;B[dg]C[Black stakes out as much as he can.]))
(;B[dg]
;W[df]
;B[de]
;W[cf]
;B[cg]C[You can deal with this so the cut is ok to allow.])
(;B[df]C[Simple, and threatens to play D3 which is worth quite a few points as you get the corner - it's very slow though.])
(;B[ge]CR[ed][ef]C[The circled stones make a tesuji that is hard to separate.]
;W[he]
;B[gf]C[Now White has two groups to look after, and quite likely will lose his points in the lower right corner.]))[/sgf-full]

TominNJ (25k, White) vs kukula (22k, Black)
Result: Black wins by resignation
Score before resignation: 21.5 - 32.0, Black wins by 10.5 points

Review:

[sgf-full](;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[9]KM[5.50]TM[300]OT[5x30 byo-yomi]
PW[TominNJ]PB[kukula]WR[25k]BR[22k]DT[2010-08-03]PC[The KGS Go Server at http://www.gokgs.com/]RE[B+Resign]
;B[dg]BL[296.531]
;W[cd]WL[292.027]
;B[gf]BL[288.103]
;W[ee]WL[278.182]C[Playing in the middle is not going to earn you points - either you play to cut Black in half and win a fight, or this is too slow.]
;B[gd]BL[275.787]C[Good, Black has taken an early lead.]
;W[fd]WL[271.04]
;B[ef]BL[262.809]
;W[ge]WL[263.262]
;B[he]BL[260.863]
;W[fe]WL[260.552]
;B[gc]BL[256.014]
(;W[fc]WL[258.973]C[White is being very reactive. He can push and cut through Black's weaknesses here - always look for the opportunities to call the shots in a game.]
;B[ce]BL[243.177]
;W[de]WL[249.194]
;B[cf]BL[238.979]
;W[df]WL[227.625]
;B[ff]BL[219.004]
;W[be]WL[209.312]
;B[bf]BL[215.843]
;W[bd]WL[194.821]
;B[ch]BL[204.988]
;W[af]WL[181.67]
;B[ag]BL[203.203]
;W[ae]WL[180.59]
;B[fb]BL[194.617]C[White has no time to cut at B3...]
(;W[eb]WL[137.738]
;B[gb]BL[188.939]
;W[fa]WL[130.914]
;B[bh]BL[184.834]
;W[ga]WL[68.253]
;B[ha]BL[181.798]
;W[ea]WL[65.957]
;B[ib]BL[172.165]
;W[gg]WL[41.682]
;B[hg]BL[147.046]
;W[gh]WL[30.99]
;B[fh]BL[138.265]
;W[fi]WL[21.967]
;B[hh]BL[126.541]
;W[hi]WL[4.533]
;B[ei]BL[115.119]
;W[fg]WL[30]OW[5]
;B[eh]BL[106.752]
;W[ih]WL[30]OW[5]
;B[gi]BL[92.822]
;W[ig]WL[30]OW[5]
;B[eg]BL[87.075]
;W[if]WL[30]OW[5]
;B[hf]BL[74.863]
;W[]
;B[]TW[aa][ba][ca][da][ab][bb][cb][db][ac][bc][cc][dc][ec][ad][dd][ed]TB[ia][hb][hc][ic][hd][id][ie][if][bg][cg][fg][gg][ig][ah][dh][gh][ih][ai][bi][ci][di][fi][hi][ii])
(;W[bg]
;B[cg]
;W[ah]
;B[db]C[White loses more at the top than he gains in the lower left.]))
(;W[ff]
(;B[fg]
;W[hf]
;B[gg]
;W[hd])
(;B[gg]
;W[fg])))[/sgf-full]

Thanks Topaz. I've fixed my post.

Wow, Topaz - just that review technology is very cool! But even better, your comments are very helpful. What a wonderful way to help us beginners along! Many thanks!

SinK 0-2 noodley

Game 1: noodley(w)23.5-16.0 S1NK
Game 2: S1NK 13.5-19.0 noodley

noodley (15k, White) vs S1NK (21k, Black)
Result: 23.5 - 16.0, White wins by 7.5 points

Review:

[sgf-full](;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[9]KM[5.50]TM[600]OT[5x30 byo-yomi]
PW[noodley]PB[S1NK]WR[15k]BR[21k]DT[2010-08-03]PC[The KGS Go Server at http://www.gokgs.com/]RE[W+7.50]
;B[ee]BL[596.589]
;W[cc]WL[584.865]
;B[fc]BL[588.636]
;W[eb]WL[563.159]
;B[fg]BL[547.357]
;W[gc]WL[539.338]C[Interesting idea - Black has some reading to do.]
(;B[gd]BL[532.433]
;W[gb]WL[504.963]
(;B[hc]BL[492.386]C[H6 is locally a bit better, as White cannot get H8 (or, in that case, H7) with a threat to capture. Black should also consider F8, keeping White low.]
;W[fb]WL[487.341]
(;B[fd]BL[483.598]C[E7 also fixes this cut ..]
;W[hb]WL[464.324]
(;B[id]BL[457.625]C[It is rare that this is the correct shape. Normally Black plays the solid connection to deprive White of sente on this edge (if Black extends to the edge, White can do so too in sente - normally, solidly connecting lets Black hane in sente first).

Globally, this is also too slow. Remember White can only capture the stone in gote anyway, and it's worth 6 points to do so (or for Black to protect). That lower left corner is much bigger (see tenuki variation).]
(;W[cg]WL[367.357]
;B[dg]BL[435.513]
;W[df]WL[331.416]C[White is probably better just extending to C4, but this is ok because of the E3 atari threat as well.]
;B[ce]BL[403.043]
;W[bf]WL[239.238]
;B[ef]BL[241.92]
;W[cf]WL[147.984]
;B[cd]BL[141.108]C[Very nice.]
;W[dd]WL[123.418]C[This helps Black, and doesn't help White's shape much - better to descend to B7 and keep the corner.]
;B[de]BL[88.107]
;W[ec]WL[105.841]
;B[bc]BL[40.198]C[This is now severe from the point of view of points in the corner]
;W[cb]WL[94.02]
;B[bb]BL[18.863]
;W[be]WL[82.781]
;B[bd]BL[30]OB[5]
;W[dh]WL[81.031]
;B[eh]BL[30]OB[5]
;W[eg]WL[62.358]
;B[ed]BL[30]OB[5]
;W[dc]WL[60.038]
;B[dg]BL[30]OB[5]
;W[he]WL[52.618]
;B[hd]BL[30]OB[5]
;W[eg]WL[28.449]
;B[ae]BL[30]OB[5]
;W[dg]WL[21.225]
(;B[ff]BL[30]OB[5]C[F2 is a must, the cut here fails instantly.]
;W[fh]WL[18.992]
;B[gh]BL[30]OB[5]
;W[ei]WL[15.99]
;B[gi]BL[30]OB[5]
;W[af]WL[0.099]
;B[ad]BL[30]OB[5]
;W[ba]WL[30]OW[5]
;B[ib]BL[30]OB[5]
;W[ha]WL[30]OW[4]
;B[ab]BL[30]OB[5]
;W[fi]WL[30]OW[4]
;B[gg]BL[30]OB[5]C[Not necessary, and costs Black a point.]
;W[ia]WL[30]OW[4]
;B[ic]BL[30]OB[5]
;W[ca]WL[30]OW[4]
;B[]BL[30]OB[5]
;W[]WL[30]OW[4]TW[da][ea][fa][ga][db][ag][bg][ah][bh][ch][eh][ai][bi][ci][di]TB[ac][fe][ge][he][ie][gf][hf][if][hg][ig][hh][ih][hi][ii])
(;B[fh]
;W[ff]
;B[gf]C[Not only this, but also that corner looks dead with a placement tesuji.]
;W[fe]
;B[bh]
;W[af]
;B[di]
;W[ci]
;B[ei]
;W[ch]
;B[ah]C[Or any one of a number of variations...]))
(;W[he]
;B[hd]
;W[gg]C[This is some of the sort of aji that is left with the hanging connection at J6. It's normally not worth leaving this amount of bad aji in a position, especially near a corner.]))
(;B[hd]C[Normal.]
;W[ic]C[White can only play this in gote now.])
(;B[ic]C[Almost always incorrect.]
;W[ib]
;B[hd])
(;B[cf]C[Tenuki variation]
;W[hd]
;B[he]
;W[ic]
;B[bd]
;W[ie]
;B[hf]
;W[if]
;B[ig]
;W[id]
;B[hg]
;W[bc]
;B[cd]))
(;B[ec]
;W[fd]
;B[ed]
;W[fe]
;B[ge]
;W[ff]TR[ef][gf]C[The ladder works in both directions.]))
(;B[fb]
(;W[fa]
;B[ec]
;W[db]
;B[hc])
(;W[hd]
;B[ge]
;W[fa]
;B[ec]
;W[db]
;B[he])))
(;B[fb]C[The obvious punishment risks letting White live on the right edge - cutting White off may not be optimal play here.]))[/sgf-full]

S1NK (21k, White) vs noodley (15k, Black)
Result: 13.5 - 19.0, Black wins by 5.5 points

Review:

[sgf-full](;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[9]KM[5.50]TM[600]OT[5x30 byo-yomi]
PW[S1NK]PB[noodley]WR[21k]BR[15k]DT[2010-08-03]PC[The KGS Go Server at http://www.gokgs.com/]RE[B+5.50]
;B[gc]BL[589.598]
;W[df]WL[593.923]C[4-4 moves aren't quite the same on a 9x9 board - easy to invade, they require a fighting strategy.]
;B[cc]BL[559.456]
;W[ge]WL[573.571]
;B[fd]BL[524.414]
;W[fe]WL[567.279]
;B[gg]BL[470.731]
;W[fg]WL[550.539]
;B[hf]BL[441.833]
;W[gf]WL[534.655]C[It is very rare that the empty triangle here will be correct. First priority seems to be stopping Black from connecting underneath, so the block looks right. Then it is down to whether Black can live comfortably in the corner, which he can. White's opening is a failure, largely because of playing way too far away from the bottom edge.]
;B[hg]BL[421.154]
;W[gh]WL[524.732]
;B[he]BL[412.253]
;W[gd]WL[498.564]
;B[hd]BL[397.779]
;W[ed]WL[486.36]
;B[fc]BL[357.615]
;W[dd]WL[472.618]C[Interesting idea - fixes most of the bad aji from E5, and now allows D8 or E8 without Black being able to resist.]
;B[hh]BL[349.549]
(;W[fh]WL[460.764]
;B[cg]BL[319.401]
;W[cf]WL[446.224]
;B[dg]BL[304.434]
(;W[bg]WL[438.507]C[Normally, the simple descent is most effective as Black cannot get B2 in sente.]
;B[bh]BL[241.396]
(;W[be]WL[425.541]C[Another mistake, giving Black good chances to force his life. A solid connection still kills.]
;B[ag]BL[191.138]
;W[bf]WL[420.637]
;B[ci]BL[186.067]
(;W[eg]WL[377.968]C[Your final chance to kill was here, D2 kills.]
;B[dh]BL[172.215]C[Black has his second eye.]
(;W[bc]WL[343.55]C[D8 kills the corner.]
;B[bb]BL[154.766]
;W[cd]WL[295.227]
;B[db]BL[116.393]
;W[ab]WL[257.504]
;B[ec]BL[90.519]
;W[dc]WL[252.557]
;B[cb]BL[87.509]
;W[hi]WL[240.79]
;B[af]BL[58.816]
;W[ae]WL[230.328]
;B[ah]BL[56.536]
;W[ei]WL[200.491]
;B[di]BL[53.841]
;W[eh]WL[191.477]
;B[ih]BL[33.031]
;W[ba]WL[149.21]
;B[eb]BL[10.583]
;W[ac]WL[134.952]
;B[ca]BL[1.32]
;W[aa]WL[132.006]
;B[ii]BL[30]OB[5]
;W[gi]WL[127.071]
;B[]BL[30]OB[4]
;W[]WL[127.069]TW[ad][bd][ce][de][ee][ef][ff][fi]TB[da][ea][fa][ga][ha][ia][fb][gb][hb][ib][hc][ic][id][ie][if][ig][ch][ai][bi])
(;W[db]
;B[cb]
;W[eb]
;B[bd]
;W[ca]
;B[ba]
;W[ab]))
(;W[dh]
(;B[eg]
;W[eh])
(;B[eh]
;W[eg])))
(;W[bf]
(;B[eg]
;W[ef]
;B[ah]
;W[di]C[C2 is now false.])
(;B[ah]
;W[di]C[C2 is now false])))
(;W[bf]
;B[bg]
;W[ci]C[D1 also works fine.]))
(;W[eb]
;B[fh]
;W[eh]
;B[gi]
;W[eg]C[At least you wreck Black's top edge and force him to worry about C7 now.]
;B[ec]
;W[dc]
;B[db]
;W[cb]))[/sgf-full]

I had also promised to give reviews and/or teaching games, but I didn't realize it was going to be starting so soon. I will be gone until the middle of next week, but after that I will be available.

Also, have you considered tie-break matches to break ties? Given that it's not a meatspace tournament with time/space constraints, it's not too hard to have an additional sudden-death match to break ties.

SinK 2-0 kukula

Game 1: S1NK(w)28.5-26.0 kukula
Game 2: kukula 15.5-49.0 S1NK

The first game was good by both sides. There were a few defensive moves that weren't strictly necessary, but otherwise, both players played well.



On the second game, if white played 28 one space to the right, it adds to his liberties while giving black less holes to push through. Suddenly, it's black who can't escape and dies. S1nk, 43 was a good move. As you correctly saw, if white got to play there, that corner group would survive, and there's no reason to be that generous. =D Again, both players played well, but the mistake at 28 decided the game.

I don't have sgf-editing capacity where I am, but I did want to add these few brief comments. If you want to find your own games, just go to http://www.gokgs.com/archives.jsp and search your own username.