Meson Chess Problem Database

Home
Latest Additions
- #2
- #3
- #4
- #5
- Stats
Books
- All composers (SLOW)
- By initial letter
Magazines
- PID
- General
- Matrix
- All sources/quoters (SLOW)
- By initial letter
- Awards
- Composers
- Decades
- Quoters
- Sizes
- Soundness
- Sources
- Stipulations
- Years
Contact
Back to BDS Website

Problem Display

PID: 238129 (8/5n2/8/Q6B/6Pk/7p/7K/8 w - - 0 1)

Hermanson, Halvar

Buletin Problemistic, 1974

8/5n2/8/Q6B/6Pk/7p/7K/8

#2

4 + 3

15148	Sadier Collection	2021
5454	Near Snap	2022

SOLUTION

SOUND
Sets
- 1...Se5
  - 2.Qd8#
- 1...Sg5
  - 2.Qe1#
- 1...Sd6
  - 2.Qd8#
- 1...Sh6
  - 2.Qd8#
- 1...Sd8
  - 2.Qxd8#
- 1...Sh8
  - 2.Qd8#
Tries
- 1.Qd2?
  - 1...Se5
    - 2.Qd8#
  - 1...Sg5
    - 2.Qe1#
    - 2.Qf2#
  - 1...Sh6
    - 2.Qd8#
  - 1...Sd8
    - 2.Qxd8#
  - 1...Sh8
    - 2.Qd8#
  - 1...Sd6!
- 1.Qb6?
  - 1...Sd6
    - 2.Qd8#
  - 1...Se5
    - 2.Qd8#
    - 2.Qf6#
  - 1...Sg5
    - 2.Qf2#
  - 1...Sh6
    - 2.Qd8#
    - 2.Qf6#
  - 1...Sd8
    - 2.Qxd8#
    - 2.Qf6#
  - 1...Sh8
    - 2.Qd8#
    - 2.Qf6#
  - 1...Kg5!
- 1.Qc7?
  - 1...Sd6
    - 2.Qd8#
    - 2.Qe7#
  - 1...Se5
    - 2.Qd8#
    - 2.Qe7#
  - 1...Sg5
    - 2.Qg3#
  - 1...Sh6
    - 2.Qd8#
    - 2.Qe7#
  - 1...Sd8
    - 2.Qxd8#
    - 2.Qe7#
  - 1...Sh8
    - 2.Qd8#
    - 2.Qe7#
  - 1...Kg5!
- 1.Qc5?
  - 1...Se5
    - 2.Qe7#
  - 1...Sg5
    - 2.Qf2#
  - 1...Sh6
    - 2.Qe7#
  - 1...Sd8
    - 2.Qe7#
  - 1...Sh8
    - 2.Qe7#
  - 1...Sd6!
- 1.Qe5?
  - 1...Sd6
    - 2.Qf6#
    - 2.Qe7#
  - 1...Sg5
    - 2.Qg3#
    - 2.Qe1#
  - 1...Sh6
    - 2.Qf6#
    - 2.Qe7#
  - 1...Sd8
    - 2.Qf6#
    - 2.Qe7#
  - 1...Sh8
    - 2.Qf6#
    - 2.Qe7#
  - 1...Sxe5!
- 1.Qa7?
  - 1...Sd6
    - 2.Qe7#
  - 1...Se5
    - 2.Qe7#
  - 1...Sg5
    - 2.Qf2#
  - 1...Sh6
    - 2.Qe7#
  - 1...Sd8
    - 2.Qe7#
  - 1...Sh8
    - 2.Qe7#
  - 1...Kg5!
Keys
- 1.Qf5!
  - 1...Sd6
    - 2.Qf6#
  - 1...Se5
    - 2.Qf6#
  - 1...Sg5
    - 2.Qf2#
  - 1...Sh6
    - 2.Qf6#
  - 1...Sd8
    - 2.Qf6#
  - 1...Sh8
    - 2.Qf6#

This anticipates 104525(1996)

FEATURES

Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 0
- REMOVED MATES = 0
Sets
- S(c);N_GUARD::QAB(C)
- S(c);SBLOCK::QAB(C)
- S(c);N_GUARD::QAB(C),XS(c)
Tries
- Try
  - Q(C);
  - Vars
    - S(c);N_GUARD::QAB(C)
    - S(c);N_GUARD::QAB(C),XS(c)
  - Refutation
    - S(c);
- Try
  - Q(C);
  - Vars
    - S(c);N_GUARD::QAB(C)
    - S(c);SBLOCK::QAB(C)
  - Refutation
    - K(b);S_FLIGHT
- Try
  - Q(C);
  - Vars
    - S(c);SBLOCK::QAB1(C)
  - Refutation
    - K(b);S_FLIGHT
- Try
  - Q(C);
  - Vars
    - S(c);N_GUARD::QAB(C)
    - S(c);SBLOCK::QAB(C)
  - Refutation
    - S(c);
- Try
  - Q(C);
  - Refutation
    - S(c);XQ(C)
- Try
  - Q(C);
  - Vars
    - S(c);N_GUARD::QAB(C)
    - S(c);SBLOCK::QAB(C)
  - Refutation
    - K(b);S_FLIGHT
Actual
- Q(C);
- Vars
  - S(c);N_GUARD::QAB(C)
  - S(c);SBLOCK::QAB(C)

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).