MESON Chess Problem Database
Problem Display
PID: 249052 (k7/3N4/B1n5/1N6/8/8/5K2/5Q2 w - - 0 1)
de Blasio, Francis JC
Sjakk-Nytt, 1947
#2
5 + 2
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
| 3713 | Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sa7
- 2.Sc7#
- 1...Sb8
- 2.Sb6#
- 1...Sa7
- Tries
- 1.Qc4?
- threat
- 2.Qxc6#
- 1...Sb4
- 2.Qg8#
- 2.Qc8#
- 1...Sd4
- 2.Qg8#
- 2.Qc8#
- 1...Sa5
- 2.Qg8#
- 2.Qc8#
- 1...Se5
- 2.Qg8#
- 2.Qc8#
- 1...Sa7
- 2.Sc7#
- 1...Sb8
- 2.Sb6#
- 1...Sd8
- 2.Qc8#
- 1...Se7!
- threat
- 1.Qc1?
- threat
- 2.Qxc6#
- 1...Sb4
- 2.Qc8#
- 1...Sd4
- 2.Qc8#
- 1...Sa5
- 2.Qc8#
- 1...Se5
- 2.Qc8#
- 1...Sa7
- 2.Sc7#
- 1...Sb8
- 2.Sb6#
- 1...Sd8
- 2.Qc8#
- 1...Se7!
- threat
- 1.Qc4?
- Keys
- 1.Qa1!
- 1...Se7
- 2.Bc8#
- 1...Sb4
- 2.Qh8#
- 1...Sd4
- 2.Bc8#
- 1...Sa5
- 2.Qh8#
- 1...Se5
- 2.Bc8#
- 1...Sa7
- 2.Sc7#
- 1...Sb8
- 2.Sb6#
- 1...Sd8
- 2.Bc8#
- 1...Se7
- 1.Qa1!
Anticipated by 9410(1902-1903)
This anticipates 93378(1956)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- S(a);SBLOCK::S(C)
- S(a);SBLOCK::S(E)
- Tries
- Try
- Q(A);
- Threat
- QAB(A),XS(a)
- Vars
- S(a);SBLOCK::S(C)
- S(a);SBLOCK::S(E)
- S(a);OGATE::QAR2(A)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- QAB(A),XS(a)
- Vars
- S(a);OGATE::QAR2(A)
- S(a);SBLOCK::S(C)
- S(a);SBLOCK::S(E)
- Refutation
- S(a);
- Try
- Actual
- Q(A);
- Vars
- S(a);N_GUARD::QAR(A)+B(D)
- S(a);N_GUARD::QAB1(A)
- S(a);SBLOCK::S(C)
- S(a);SBLOCK::S(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).