Ticket #186 (closed enhancement: fixed)

Opened 5 years ago

Last modified 5 years ago

Some more passes in semeai reading

Reported by: nando Owned by: fpo
Priority: normal Milestone: 3.7.11
Component: source Version:
Severity: normal Keywords: semeai
Cc: patch: yes

Description

The idea behind the patch is documented in the source code, please refer to it. 

lazarus:7       PASS T5 [T5]
semeai:130      PASS 0 0 PASS [0 0 PASS]
semeai:144      PASS 2 2 PASS [2 2 PASS]

The semeai reading in lazarus:7 is improved, the engine can now find that B:L12 gets at most a seki. The two other cases are properly solved (they were the primary targets of this patch)

Performance-wise, the light increase in owl nodes (+0.16%) is accompanied by a small reduction in reading and connection nodes. This is understandable since the considered positions are almost terminal ones, those semeai nodes are most likely very cheap.

-- nando

Attachments

semeai_7_11.2.diff Download (2.1 KB) - added by nando 5 years ago.
Attempt passes in semeai reading when appropriate

Regression Results

Attachment Rev. PASS FAIL Nodes Status
semeai_7_11.2.diff Download 2385 3 -0.015% +0.16% -0.05% details

Change History

Changed 5 years ago by nando

Attempt passes in semeai reading when appropriate

comment:1 Changed 5 years ago by gunnar

Looks good.

comment:2 Changed 5 years ago by nando

  • Status changed from new to closed
  • Resolution set to fixed
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