MESON Chess Problem Database
Problem Display
PID: 149181 (Q7/3N1p2/2pb4/1p1k1P2/8/3K4/3n1P2/8 w - - 0 1)
Armeni, Alberto
Best Problems, 2010
#2
5 + 6
| 15148 | Sadier Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Sb1
- 2.Qa2#
- 1...Sf1
- 2.Qa2#
- 1...Sf3
- 2.Qa2#
- 1...Se4
- 2.Qa2#
- 1...f6
- 2.Qg8#
- 1...Sb1
- Tries
- 1.Qa2+?
- 1...Sb3
- 2.Qxb3#
- 1...Sc4!
- 1...Sb3
- 1.Qa7?
- threat
- 2.Qd4#
- 1...Bc5
- 2.Qxc5#
- 1...Be5
- 2.Qc5#
- 1...c5
- 2.Qb7#
- 2.Qa8#
- 1...Sf3
- 2.Qa2#
- 1...Sb3!
- threat
- 1.Qh8?
- threat
- 2.Qd4#
- 1...Bc5
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...c5
- 2.Qa8#
- 1...Sb3
- 2.Qh1#
- 1...f6
- 2.Qg8#
- 1...Sf3!
- threat
- 1.Qa2+?
- Keys
- 1.Qa1!
- threat
- 2.Qd4#
- 1...Bc5
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...c5
- 2.Qa8#
- 1...Sb3
- 2.Qh1#
- 1...Sf3
- 2.Qa2#
- threat
- 1.Qa1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- S(a);N_GUARD::QAB(E)
- P(f);OGATEB::QAB(E)
- Tries
- Try
- Q(E);CHECK,N_PINP(d)
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB(E),XS(a)
- Refutation
- S(a);P_SPINS(a)
- Try
- Q(E);N_PINP(d)
- Threat
- QAR1(E)
- Vars
- B(e);N_GUARD::QAR1(E),XB(e)
- B(e);N_GUARD::QAR1(E)
- S(a);N_GUARD::QAB(E)
- Refutation
- S(a);
- Try
- Q(E);N_PINP(d)
- Threat
- QAR1(E)
- Vars
- B(e);N_GUARD::QAR1(E)
- B(e);N_GUARD::QAR1(E),XB(e)
- P(d);OGATEB::QAB(E)
- S(a);N_GUARD::QAB(E)
- P(f);OGATEB::QAB(E)
- Refutation
- S(a);
- Try
- Actual
- Q(E);N_PINP(d)
- Threat
- QAR1(E)
- Vars
- B(e);N_GUARD::QAR1(E)
- B(e);N_GUARD::QAR1(E),XB(e)
- P(d);OGATEB::QAB(E)
- S(a);N_GUARD::QAB(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).