MESON Chess Problem Database
Problem Display
PID: 261037 (7Q/8/6P1/5N1K/4pk2/5nN1/8/3B4 w - - 0 1)
Pirrone, Santi
1/2 Comm., To Mat, 1960
#2
6 + 3
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Qb8#
- 1...Sg1
- 2.Qb8#
- 1...Sd2
- 2.Qb8#
- 1...Sh2
- 2.Qb8#
- 1...Sd4
- 2.Qb8#
- 1...Sh4
- 2.Qb8#
- 1...Se5
- 2.Qh6#
- 1...Sg5
- 2.Qb8#
- 1...Se1
- Tries
- 1.Be2?
- 1...Se1
- 2.Qb8#
- 1...Sg1
- 2.Qb8#
- 1...Sd2
- 2.Qb8#
- 1...Sh2
- 2.Qb8#
- 1...Sd4
- 2.Qb8#
- 1...Sh4
- 2.Qb8#
- 1...Se5
- 2.Qh6#
- 1...Sg5
- 2.Qb8#
- 1...e3!
- 1...Se1
- 1.Qd4?
- threat
- 2.Qxe4#
- 1...Sd2
- 2.Qd6#
- 1...Sg5
- 2.Qd6#
- 1...Sxd4!
- threat
- 1.Qf6?
- threat
- 2.Se2#
- 1...Se1
- 2.Qd6#
- 1...Sg1
- 2.Qd6#
- 1...Sd2
- 2.Qd6#
- 1...Sh2
- 2.Qd6#
- 1...Sd4
- 2.Qd6#
- 1...Sh4
- 2.Qd6#
- 1...Se5
- 2.Qg5#
- 1...Sg5
- 2.Qd6#
- 1...e3!
- threat
- 1.Qg7?
- 1...Se1
- 2.Qc7#
- 1...Sg1
- 2.Qc7#
- 1...Sd2
- 2.Qc7#
- 1...Sh2
- 2.Qc7#
- 1...Sd4
- 2.Qc7#
- 1...Sh4
- 2.Qc7#
- 1...Se5
- 2.Qh6#
- 1...Sg5
- 2.Qc7#
- 1...e3!
- 1...Se1
- 1.Qa8?
- threat
- 2.Qxe4#
- 1...e3
- 2.Qe4#
- 1...Sd2
- 2.Qb8#
- 1...Sg5
- 2.Qb8#
- 1...Ke5!
- threat
- 1.Qd8?
- 1...Ke5
- 2.Qd6#
- 1...Se1
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Sg1
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Sd2
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Sh2
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Sd4
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Sh4
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Se5
- 2.Qg5#
- 1...Sg5
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...e3!
- 1...Ke5
- 1.Qe8?
- threat
- 2.Qxe4#
- 1...e3
- 2.Qxe3#
- 2.Qe4#
- 1...Sd2
- 2.Qb8#
- 1...Sg5
- 2.Qb8#
- 1...Se5!
- threat
- 1.Qf8?
- 1...Ke5
- 2.Qd6#
- 1...Se1
- 2.Qd6#
- 2.Qb8#
- 1...Sg1
- 2.Qd6#
- 2.Qb8#
- 1...Sd2
- 2.Qd6#
- 2.Qb8#
- 1...Sh2
- 2.Qd6#
- 2.Qb8#
- 1...Sd4
- 2.Qd6#
- 2.Qb8#
- 1...Sh4
- 2.Qd6#
- 2.Qb8#
- 1...Se5
- 2.Qh6#
- 1...Sg5
- 2.Qd6#
- 2.Qb8#
- 1...e3!
- 1...Ke5
- 1.Be2?
- Keys
- 1.Qc3!
- 1...Sd4
- 2.Qc7#
- 1...e3
- 2.Qxe3#
- 1...Se1
- 2.Qc7#
- 1...Sg1
- 2.Qc7#
- 1...Sd2
- 2.Qc7#
- 1...Sh2
- 2.Qc7#
- 1...Sh4
- 2.Qc7#
- 1...Se5
- 2.Qe3#
- 1...Sg5
- 2.Qc7#
- 1...Sd4
- 1.Qc3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD,SBLOCK::QAB(F)
- Tries
- Try
- B(A);
- Vars
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD,SBLOCK::QAB(F)
- Refutation
- P(b);
- Try
- Q(F);P_PINP(b)
- Threat
- QAR1(F),XP(b)
- Vars
- S(a);N_GUARD::QAB(F)
- Refutation
- S(a);N_SPINP(b),XQ(F)
- Try
- Q(F);
- Threat
- S(B)
- Vars
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD,SBLOCK::QAB1(F)
- Refutation
- P(b);
- Try
- Q(F);
- Vars
- S(a);N_GUARD::QAB(F)
- S(a);N_GUARD,SBLOCK::QAB(F)
- Refutation
- P(b);
- Try
- Q(F);
- Threat
- QAR1(F),XP(b)
- Vars
- P(b);::QAR1(F)
- S(a);N_GUARD::QAB(F)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(F);
- Vars
- K(c);S_CUTS(a),S_FLIGHT::QAB1(F)
- S(a);N_GUARD,SBLOCK::QAB1(F)
- Refutation
- P(b);
- Try
- Q(F);
- Threat
- QAR1(F),XP(b)
- Vars
- S(a);N_GUARD::QAB(F)
- Refutation
- S(a);
- Try
- Q(F);
- Vars
- K(c);S_CUTS(a),S_FLIGHT::QAB1(F)
- S(a);N_GUARD,SBLOCK::QAB(F)
- Refutation
- P(b);
- Try
- Actual
- Q(F);
- Vars
- S(a);N_GUARD::QAB(F)
- P(b);::QAB1(F),XP(b)
- S(a);SBLOCK::QAB1(F)
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).