MESON Chess Problem Database
Problem Display
PID: 284102 (7Q/6B1/8/8/3N4/pB6/1p5K/k7 w - - 0 1)
Echemendia, Luis
Zaragoza-65 JT (Problemas), 2025
#2
5 + 3
SOLUTION
- SOUND
- Sets
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b1R
- 2.Sc2#
- 1...b1Q
- Tries
- 1.Kg2?
- 1...Kb1
- 2.Qh1#
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b1R
- 2.Sc2#
- 1...a2!
- 1...Kb1
- 1.Kg3?
- 1...Kb1
- 2.Qh1#
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b1R
- 2.Sc2#
- 1...a2!
- 1...Kb1
- 1.Qh3?
- 1...Kb1
- 2.Qf1#
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 2.Qc3#
- 1...b1R
- 2.Sc2#
- 1...a2!
- 1...Kb1
- 1.Qh4?
- 1...Kb1
- 2.Qe1#
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b1R
- 2.Sc2#
- 1...a2!
- 1...Kb1
- 1.Qh5?
- 1...Kb1
- 2.Qd1#
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b1R
- 2.Sc2#
- 1...a2!
- 1...Kb1
- 1.Qh7?
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b1R
- 2.Sc2#
- 1...a2!
- 1...b1Q
- 1.Qe8?
- 1...Kb1
- 2.Qe1#
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b1R
- 2.Sc2#
- 1...a2!
- 1...Kb1
- 1.Qf8?
- 1...Kb1
- 2.Qf1#
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b1R
- 2.Sc2#
- 2.Qxa3#
- 1...a2!
- 1...Kb1
- 1.Kg2?
- Keys
- 1.Qa8!
- 1...Kb1
- 2.Qh1#
- 1...b1Q
- 2.Sc2#
- 1...b1S
- 2.Sc2#
- 1...b1B
- 2.Sc2#
- 2.Se2#
- 2.Sf3#
- 2.Sb5#
- 2.Sf5#
- 2.Sc6#
- 2.Se6#
- 1...b1R
- 2.Sc2#
- 2.Qxa3#
- 1...a2
- 2.Qxa2#
- 1...Kb1
- 1.Qa8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- P(b);SBLOCK::B(D)+S(C),DCHECK
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(a);P-FLIGHT,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::QAR(E)
- P(b);SBLOCK::B(D)+S(C),DCHECK
- Refutation
- P(c);
- Try
- K(A);S_FLIGHT
- Vars
- K(a);P-FLIGHT,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::QAR(E)
- P(b);SBLOCK::B(D)+S(C),DCHECK
- Refutation
- P(c);
- Try
- Q(E);
- Vars
- K(a);P-FLIGHT,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::QAR(E)
- P(b);SBLOCK::B(D)+S(C),DCHECK
- Refutation
- P(c);
- Try
- Q(E);
- Vars
- K(a);P-FLIGHT,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::QAR(E)
- P(b);SBLOCK::B(D)+S(C),DCHECK
- Refutation
- P(c);
- Try
- Q(E);
- Vars
- K(a);P-FLIGHT,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::QAR2(E)
- P(b);SBLOCK::B(D)+S(C),DCHECK
- Refutation
- P(c);
- Try
- Q(E);
- Vars
- P(b);SBLOCK::B(D)+S(C),DCHECK
- Refutation
- P(c);
- Try
- Q(E);
- Vars
- K(a);P-FLIGHT,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::QAR(E)
- P(b);SBLOCK::B(D)+S(C),DCHECK
- Refutation
- P(c);
- Try
- Q(E);
- Vars
- K(a);P-FLIGHT,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::QAR(E)
- P(b);SBLOCK::B(D)+S(C),DCHECK
- Refutation
- P(c);
- Try
- Actual
- Q(E);P_PINP(c)
- Vars
- K(a);N_SPINP(c),P-FLIGHT,S_CUTP(b),S_CUTP(b),S_CUTP(b),S_CUTP(b)::QAR(E)
- P(b);SBLOCK::B(D)+S(C),DCHECK
- P(c);OGATE::QAR1(E),XP(c)
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).