Ticket #123 (closed defect: wontfix)

Opened 6 years ago

Last modified 3 years ago

Some bad moves

Reported by: alain Owned by: gnugo
Priority: normal Milestone:
Component: source Version:
Severity: normal Keywords:
Cc: patch: no

Description (last modified by alain) (diff)

game 36193.sgf Some bad things on one move
At move 20 gnugo 3.7.9 white defend at B3 the stronger group which is alive and does not need defense, and let die the weakest G7.

Correct move 20 is probably F7 or H5.

Dragon status of D4 wrongly changed from alive to unknown after black 19.
With 1000 semeai nodes things are worst: gnugo still defend the strong group but with B1, which protect the cut in B7 but is really ugly.

game twinbot-pedropi.sgf, move 135 B1

gnugo 3.7.9 Top moves:
1. B1  8.69
2. L12 7.62
3. M12 7.36

Attachments

36193.sgf Download (762 bytes) - added by alain 6 years ago.
bad white move 20.
twinbot-pedropi.sgf Download (3.6 KB) - added by alain 6 years ago.
move 135 B1 is bad.

Regression Results

Attachment Rev. PASS FAIL Nodes Status

Change History

Changed 6 years ago by alain

bad white move 20.

comment:1 Changed 6 years ago by alain

  • Description modified (diff)
  • Summary changed from bad move to Some bad moves

Changed 6 years ago by alain

move 135 B1 is bad.

comment:2 Changed 3 years ago by gunnar

  • Status changed from new to closed
  • Resolution set to wontfix
  • Milestone 3.8 deleted

The first case is rather difficult to understand for the classical move generation but is fully solved with --monte-carlo. The second case is nothing out of the ordinary and wouldn't add much as a testcase. I'm closing this as wontfix.

Note: See TracTickets for help on using tickets.