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: 110053 (1b6/3p4/b2B4/1p6/1PkpQ1n1/3N4/2PK4/3n4 w - - 0 1)

Valle, Giovanni Batista

Fanfulla da Lodi, 1886-1888

1b6/3p4/b2B4/1p6/1PkpQ1n1/3N4/2PK4/3n4

#2

6 + 8

6490	yacpdb	2009

SOLUTION

SOUND
Sets
- 1...Sb2
  - 2.Sxb2#
- 1...Sdf2
  - 2.Sb2#
- 1...Sc3
  - 2.Sb2#
- 1...Sde3
  - 2.Sb2#
- 1...Sgf2
  - 2.Se5#
- 1...Sh2
  - 2.Se5#
- 1...Sge3
  - 2.Se5#
- 1...Se5
  - 2.Sxe5#
- 1...Sf6
  - 2.Se5#
- 1...Sh6
  - 2.Se5#
Tries
- 1.Sf4?
  - threat
    - 2.Qd3#
    - 2.Qd5#
  - 1...Bb7
    - 2.Qd3#
  - 1...Sb2
    - 2.Qd5#
  - 1...Sdf2
    - 2.Qd5#
  - 1...Sc3
    - 2.Qd3#
  - 1...Sde3
    - 2.Qd3#
  - 1...Sgf2
    - 2.Qd5#
  - 1...Sge3
    - 2.Qd3#
  - 1...Se5
    - 2.Qd5#
  - 1...Sf6
    - 2.Qd3#
  - 1...Bxd6!
- 1.Qf3?
  - threat
    - 2.Qf7#
  - 1...Sc3
    - 2.Sb2#
  - 1...Sde3
    - 2.Sb2#
  - 1...Sge3
    - 2.Se5#
  - 1...Se5
    - 2.Sxe5#
  - 1...Sf6
    - 2.Se5#
  - 1...Sh6
    - 2.Se5#
  - 1...Bb7!
- 1.Qf5?
  - threat
    - 2.Qc5#
    - 2.Qf7#
  - 1...Bxd6
    - 2.Qf7#
  - 1...Bb7
    - 2.Qc5#
  - 1...Ba7
    - 2.Qf7#
  - 1...Sc3
    - 2.Sb2#
    - 2.Qc5#
  - 1...Sde3
    - 2.Sb2#
    - 2.Qc5#
  - 1...Sge3
    - 2.Qc5#
  - 1...Sf6
    - 2.Qc5#
  - 1...Sh6
    - 2.Qc5#
  - 1...Se5!
Keys
- 1.Qa8!
  - 1...Bxd6
    - 2.Qg8#
  - 1...Bb7
    - 2.Qa2#
  - 1...Bc8
    - 2.Qa2#
  - 1...Ba7
    - 2.Qg8#
  - 1...Bc7
    - 2.Qg8#
  - 1...Sb2
    - 2.Sxb2#
  - 1...Sdf2
    - 2.Sb2#
  - 1...Sc3
    - 2.Sb2#
  - 1...Sde3
    - 2.Sb2#
  - 1...Sgf2
    - 2.Se5#
  - 1...Sh2
    - 2.Se5#
  - 1...Sge3
    - 2.Se5#
  - 1...Se5
    - 2.Sxe5#
  - 1...Sf6
    - 2.Se5#
  - 1...Sh6
    - 2.Se5#

FEATURES

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
Sets
- S(a);N_GUARD::S(C),XS(a)
- S(a);N_GUARD::S(C)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
Tries
- Try
  - S(C);
  - Threat
    - DUALS(2)
  - Vars
    - B(f);::QAB1(E)
    - S(a);::QAB1(E)
    - S(d);::QAB1(E)
  - Refutation
    - B(h);XB(F)
- Try
  - Q(E);N_PINP(c)
  - Threat
    - QAB(E)
  - Vars
    - S(a);N_GUARD::S(C)
    - S(d);N_GUARD::S(C)
    - S(d);N_GUARD::S(C),XS(d)
  - Refutation
    - B(f);
- Try
  - Q(E);N_PINP(c)
  - Threat
    - DUALS(2)
  - Vars
    - B(h);XB(F)::QAB(E)
    - B(f);::QAR1(E)
    - B(h);::QAB(E)
    - S(d);::QAR1(E)
  - Refutation
    - S(d);
Actual
- Q(E);N_PINP(c)
- Vars
  - B(h);OGATE,XB(F)::QAB(E)
  - B(f);OGATE::QAB(E)
  - B(h);OGATE::QAB(E)
  - S(a);N_GUARD::S(C),XS(a)
  - S(a);N_GUARD::S(C)
  - S(d);N_GUARD::S(C)
  - S(d);N_GUARD::S(C),XS(d)

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).