MESON Chess Problem Database
Problem Display
PID: 241444 (5B2/3B4/qpN1N3/1n1k1p2/5P2/pP1n1P2/7Q/K4b2 w - - 0 1)
Hjelle, David
Arbejder-Skak, 1953
#2
9 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Sb4#
- 1...Se1
- 2.Sb4#
- 1...Sb2
- 2.Sb4#
- 1...Sf2
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sxf4
- 2.Sxf4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Sc3
- 2.Sc7#
- 1...Sd4
- 2.Sc7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Sc1
- Tries
- 1.Qc2?
- threat
- 2.Qc4#
- 1...Sxf4
- 2.Sxf4#
- 2.Qxf5#
- 1...Sc1
- 2.Sb4#
- 2.Qxf5#
- 1...Se1
- 2.Sb4#
- 2.Qxf5#
- 1...Sb2
- 2.Sb4#
- 2.Qxf5#
- 1...Sf2
- 2.Sb4#
- 2.Qxf5#
- 1...Sb4
- 2.Sxb4#
- 2.Qxf5#
- 1...Sc5
- 2.Sb4#
- 2.Qxf5#
- 1...Se5
- 2.Sb4#
- 1...Sc3
- 2.Sc7#
- 1...Sd4
- 2.Sc7#
- 1...Sd6
- 2.Se7#
- 2.Sc7#
- 1...Sa7
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- 1...Qa4!
- threat
- 1.Qc2?
- Keys
- 1.Qa2!
- threat
- 2.b4#
- 1...Sxf4
- 2.Sxf4#
- 1...Qa4
- 2.bxa4#
- 1...Sc1
- 2.Sb4#
- 1...Se1
- 2.Sb4#
- 1...Sb2
- 2.Sb4#
- 1...Sf2
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Sc3
- 2.Sc7#
- 1...Sd4
- 2.Sc7#
- 1...Sd6
- 2.Se7#
- 1...Sa7
- 2.Sc7#
- 1...Sc7
- 2.Sxc7#
- threat
- 1.Qa2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- S(c);XP(E)::S(G),XS(c)
- S(d);N_GUARD::S(G)
- S(d);SBLOCK::S(F)
- S(d);N_GUARD::S(G),XS(d)
- Tries
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- S(c);N_GUARD::S(F)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- Q(g);
- Try
- Actual
- Q(B);
- Threat
- QAB(B)+P(C)
- Vars
- S(c);XP(E)::S(G),XS(c)
- Q(g);OGATE::QAB(B)+P(C),XQ(g)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(c)
- S(d);N_GUARD::S(G)
- S(d);SBLOCK::S(F)
- S(d);N_GUARD::S(G),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).