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: 110778 (8/1pn5/1B1p4/R7/2k3Kp/P1p3nR/8/1Q6 w - - 0 1)

Zhukovin, Konstantin

Szachy, 1959

8/1pn5/1B1p4/R7/2k3Kp/P1p3nR/8/1Q6

#2

6 + 7

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Sf1
  - 2.Qa2#
  - 2.Qb4#
- 1...Sh1
  - 2.Qa2#
  - 2.Qb4#
- 1...Se2
  - 2.Qa2#
  - 2.Qb4#
- 1...Se4
  - 2.Qa2#
  - 2.Qb4#
- 1...Sf5
  - 2.Qa2#
  - 2.Qb4#
- 1...Sh5
  - 2.Qa2#
  - 2.Qb4#
- 1...Sb5
  - 2.Qxb5#
- 1...Sd5
  - 2.Qb5#
- 1...Sa6
  - 2.Qb5#
- 1...Se6
  - 2.Qb5#
- 1...Sa8
  - 2.Qb5#
- 1...Se8
  - 2.Qb5#
- 1...c2
  - 2.Qxc2#
- 1...d5
  - 2.Ra4#
Tries
- 1.Kxh4?
  - 1...Sb5
    - 2.Qxb5#
  - 1...c2
    - 2.Qxc2#
  - 1...Sf1
    - 2.Qa2#
    - 2.Qb4#
  - 1...Sh1
    - 2.Qa2#
    - 2.Qb4#
  - 1...Se2
    - 2.Qa2#
    - 2.Qb4#
  - 1...Se4
    - 2.Qa2#
    - 2.Qb4#
  - 1...Sh5
    - 2.Qa2#
    - 2.Qb4#
  - 1...Sd5
    - 2.Qb5#
  - 1...Sa6
    - 2.Qb5#
  - 1...Se6
    - 2.Qb5#
  - 1...Sa8
    - 2.Qb5#
  - 1...Se8
    - 2.Qb5#
  - 1...d5
    - 2.Ra4#
  - 1...Sf5+!
- 1.Rxg3?
  - threat
    - 2.Qa2#
    - 2.Qb4#
  - 1...Sb5
    - 2.Qa2#
    - 2.Qxb5#
  - 1...Sd5
    - 2.Qa2#
    - 2.Qb5#
  - 1...Sa6
    - 2.Qa2#
    - 2.Qb5#
  - 1...hxg3!
Keys
- 1.Qd1!
  - 1...c2
    - 2.Qxc2#
  - 1...Sd5
    - 2.Qxd5#
  - 1...Sf1
    - 2.Qa4#
  - 1...Sh1
    - 2.Qa4#
  - 1...Se2
    - 2.Qa4#
  - 1...Se4
    - 2.Qa4#
  - 1...Sf5
    - 2.Qa4#
  - 1...Sh5
    - 2.Qa4#
  - 1...Sb5
    - 2.Ra4#
  - 1...Sa6
    - 2.Qd5#
  - 1...Se6
    - 2.Qd5#
  - 1...Sa8
    - 2.Qd5#
  - 1...Se8
    - 2.Qd5#
  - 1...d5
    - 2.Rc5#

FEATURES

Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 6
- REMOVED MATES = 0
Sets
- S(g);N_GUARD::QAB1(A),XS(g)
- S(g);N_GUARD::QAB1(A)
- P(a);OGATEB::QAR2(A),XP(a)
- P(e);SBLOCK::R(E)
Tries
- Try
  - K(D);P-FLIGHT,XP(d)
  - Vars
    - S(g);N_GUARD::QAB1(A),XS(g)
    - P(a);OGATEB::QAR2(A),XP(a)
    - S(g);N_GUARD::QAB1(A)
    - P(e);SBLOCK::R(E)
  - Refutation
    - S(b);CHECK
- Try
  - R(C);XS(b)
  - Threat
    - DUALS(2)
  - Refutation
    - P(d);XR(C)
Actual
- Q(A);
- Vars
  - P(a);OGATEB::QAR2(A),XP(a)
  - S(g);N_GUARD::QAB1(A),XS(g)
  - S(b);::QAR2(A)
  - S(g);SBLOCK::R(E)
  - S(g);N_GUARD::QAB1(A)
  - P(e);N_GUARD::R1(E)

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).