[go]$$Bc $$ ------------ $$ | . . . . . . $$ | X . X O O . $$ | . . . . . . $$ | . X X O . . $$ | . O O O . . $$ | . . . . . .[/go]
Problem 2 (6 points)
$$Bc $$ ------------------ $$ . . . . . . . . O . | $$ . . X . . . . O X . | $$ . . . X O . . O X . | $$ , . . X O X O X . . | $$ . . . X O X O X . . | $$ . . . X O O O X . . | $$ . . . . X X X X . . | $$ . . . . . . . . . . |
[go]$$Bc $$ ------------------ $$ . . . . . . . . O . | $$ . . X . . . . O X . | $$ . . . X O . . O X . | $$ , . . X O X O X . . | $$ . . . X O X O X . . | $$ . . . X O O O X . . | $$ . . . . X X X X . . | $$ . . . . . . . . . . |[/go]
Problem 3 (9 points)
$$Bc $$ | . . . . . . . . . . . $$ | . X X X . . . . . . . $$ | . O O , X X . . . , . $$ | . . . O O X X X . X . $$ | . . . . . . . . X . . $$ | . . . . . . . . . . . $$ ----------------------
[go]$$B seki... $$ --------------- $$ | . X . 1 . . . $$ | 2 6 4 X O . O $$ | 3 X 5 X O . . $$ | . O . O O . . $$ | . O . . . . . $$ | . . . O . . .[/go]
$$B seki... $$ --------------- $$ | . X . 5 . . . $$ | 2 4 6 X O . O $$ | 3 X 1 X O . . $$ | . O . O O . . $$ | . O . . . . . $$ | . . . O . . .
[go]$$B seki... $$ --------------- $$ | . X . 5 . . . $$ | 2 4 6 X O . O $$ | 3 X 1 X O . . $$ | . O . O O . . $$ | . O . . . . . $$ | . . . O . . .[/go]
$$B $$ --------------------- $$ . . . . . . . . O . | $$ . . X . . . . O X . | $$ . . . X O . . O X . | $$ , . . X O X O X . . | $$ . . . X O X O X . . | $$ . . . X O O O X . . | $$ . . . . X X X X . . | $$ . . . . . . . . . . |
[go]$$B $$ --------------------- $$ . . . . . . . . O . | $$ . . X . . . . O X . | $$ . . . X O . . O X . | $$ , . . X O X O X . . | $$ . . . X O X O X . . | $$ . . . X O O O X . . | $$ . . . . X X X X . . | $$ . . . . . . . . . . |[/go]
$$B $$ | . . . . . . . . . . . $$ | . X X X . . . . . . . $$ | . O O , X X . . . , . $$ | . . . O O X X X . X . $$ | . 1 . . . . . . X . . $$ | . . . . . . . . . . . $$ -----------------------
[go]$$Bc $$ ------------ $$ | . 1 . . . . $$ | X . X O O . $$ | . . . . . . $$ | . X X O . . $$ | . O O O . . $$ | . . . . . .[/go]
Problem 2 (6 points)
$$Bc $$ ------------------ $$ . . . . . . . . O . | $$ . . X . 3 5 2 O X . | $$ . . . X O 4 1 O X . | $$ , . . X O X O X . . | $$ . . . X O X O X . . | $$ . . . X O O O X . . | $$ . . . . X X X X . . | $$ . . . . . . . . . . |
[go]$$Bc $$ ------------------ $$ . . . . . . . . O . | $$ . . X . 3 5 2 O X . | $$ . . . X O 4 1 O X . | $$ , . . X O X O X . . | $$ . . . X O X O X . . | $$ . . . X O O O X . . | $$ . . . . X X X X . . | $$ . . . . . . . . . . |[/go]
Problem 3 (9 points)
$$Bc $$ | . . . . . . . . . . . $$ | . X X X . . . . . . . $$ | 1 O O , X X . . . , . $$ | . 2 . O O X X X . X . $$ | 6 5 3 4 . 7 . . X . . $$ | . 8 9 . . . . . . . . $$ ----------------------
[go]$$Bc $$ ------------ $$ | . 1 . . . . $$ | X . X O O . $$ | . . . . . . $$ | . X X O . . $$ | . O O O . . $$ | . . . . . .[/go]
Problem 2 (6 points)
$$Bc $$ ------------------ $$ . . . . . . . . O . | $$ . . X . 3 5 2 O X . | $$ . . . X O 4 1 O X . | $$ , . . X O X O X . . | $$ . . . X O X O X . . | $$ . . . X O O O X . . | $$ . . . . X X X X . . | $$ . . . . . . . . . . |
[go]$$Bc $$ ------------------ $$ . . . . . . . . O . | $$ . . X . 3 5 2 O X . | $$ . . . X O 4 1 O X . | $$ , . . X O X O X . . | $$ . . . X O X O X . . | $$ . . . X O O O X . . | $$ . . . . X X X X . . | $$ . . . . . . . . . . |[/go]
Problem 3 (9 points)
$$Bc $$ | . . . . . . . . . . . $$ | . X X X . . . . . . . $$ | 1 O O , X X . . . , . $$ | . 2 . O O X X X . X . $$ | 6 5 3 4 . 7 . . X . . $$ | . 8 9 . . . . . . . . $$ ----------------------
[go]$$Bc $$ | . . . . . . . . . . . $$ | . X X X . . . . . . . $$ | 1 O O , X X . . . , . $$ | . 2 . O O X X X . X . $$ | . 4 3 . . . . . X . . $$ | . . . . . . . . . . . $$ ----------------------[/go]
Re: L19 Go Problem Championship: Round 16
Posted: Mon Jun 26, 2017 8:26 pm
by Kirby
Solutions and updated leader board are given below.
Problem 1
(;GM[1]FF[4]CA[UTF-8]AP[WebGoBoard:0.10.8]ST[0]SZ[19]KM[6.5]HA[0]PB[Black]PW[White]AB[ab][cb][cd][bd]AW[db][eb][dd][de][ce][be]C[Problem 1: Black lives!](;B[ba];W[bc];B[cc];W[ad];B[ac]C[Alive.])(;B[ca];W[ad];B[ac];W[cc];B[bc];W[ba]C[Black dies.]))
Problem 2
(;GM[1]FF[4]CA[UTF-8]AP[WebGoBoard:0.10.8]ST[0]SZ[19]KM[6.5]HA[0]PB[Black]PW[White]AB[rb][rc][qd][qe][qf][qg][pg][od][oe][og][ng][mf][md][me][mc][lb]AW[ra][qb][qc][pd][pe][pf][of][nf][ne][nd][nc]C[Problem 2: Black kills white!](;B[pc];W[pb];B[nb];W[oc];B[ob]C[Black is dead, because Q17 is a false eye!])(;B[ob];W[nb];B[na];W[ma];B[pa];W[pb];B[mb];W[oc];B[la];W[qa]C[White lives.]))
Problem 3
(;GM[1]FF[4]CA[UTF-8]AP[WebGoBoard:0.10.8]ST[0]SZ[19]KM[6.5]HA[0]PB[Black]PW[White]AB[bo][co][do][ep][fp][fq][gq][hq][ir][jq]AW[bp][cp][dq][eq]C[Problem 3: Ko.](;B[br];W[cr];B[bq](;W[ap];B[dr];W[bs];B[cq];W[ar];B[cs];W[aq];B[as]C[Black makes a ko.])(;W[aq];B[ar];W[ap];B[dp]C[C3 and E2 are miai; black kills white.]))(;B[cr];W[br];B[bs];W[cq];B[ar];W[bq]C[White lives.])(;B[er];W[dr];B[fs];W[br]C[White lives.]))
Leaderboard
gamesorry - 179
EdLee - 112
dfan - 104
Shaddy - 98
Schachus - 77
hyperpape - 39
jeromie - 31
Monkey - 28
mongus - 19
Lanrose - 16
ez4u - 9
fractic - 6
Marcus - 5
Re: L19 Go Problem Championship: Round 16
Posted: Wed Jun 28, 2017 5:38 pm
by Monkey
Kirby wrote:Sorry for the late response. Do you have an answer for this?
