MESON Chess Problem Database
Problem Display
PID: 23612 (7B/6q1/8/3P1k1B/4N2P/2pQKN2/2P5/8 w - - 0 1)
Fjellstrom, Zakarias
Eskilstuna Kuriren, 1952
#2
9 + 3
| 3105 | FIDE Album (1945-1955) | 1964 |
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Qd4+
- 2.Sxd4#
- 1...Qf6
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sxf6#
- 1...Qh6+
- 2.Seg5#
- 1...Qf8
- 2.Sd4#
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qg1+
- 2.Sf2#
- 1...Qg2
- 2.Sd4#
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qg3
- 2.Sd2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sxg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qg4
- 2.Sd4#
- 2.Sg3#
- 2.Sd6#
- 1...Qg5+
- 2.Sexg5#
- 1...Qg6
- 2.Sd4#
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qa7+
- 2.Sc5#
- 1...Qb7
- 2.Sd4#
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qc7
- 2.Sd4#
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qd7
- 2.Sd4#
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qe7
- 2.Sd4#
- 1...Qf7
- 2.Sd4#
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qh7
- 2.Sd4#
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qg8
- 2.Sd4#
- 2.Sed2#
- 2.Sf2#
- 2.Sxc3#
- 2.Sg3#
- 2.Sc5#
- 2.Seg5#
- 2.Sd6#
- 2.Sf6#
- 1...Qd4+
- Keys
- 1.Qf1!
- 1...Qd4+
- 2.Sxd4#
- 1...Qh6+
- 2.Sfg5#
- 1...Qg1+
- 2.Sxg1#
- 1...Qg5+
- 2.Sfxg5#
- 1...Qa7+
- 2.Sd4#
- 1...Qxh8
- 2.Qh3#
- 1...Qe5
- 2.Sd4#
- 2.Sxe5#
- 2.Qh3#
- 1...Qf6
- 2.Sg3#
- 2.Qh3#
- 1...Qf8
- 2.Se1#
- 2.Sg1#
- 2.Sfd2#
- 2.Sh2#
- 2.Sd4#
- 2.Se5#
- 2.Sfg5#
- 2.Sg3#
- 2.Qh3#
- 1...Qg2
- 2.Sd4#
- 2.Sd6#
- 1...Qg3
- 2.Sxg3#
- 1...Qg4
- 2.Sd4#
- 2.Sd6#
- 1...Qg6
- 2.Se1#
- 2.Sg1#
- 2.Sfd2#
- 2.Sh2#
- 2.Sd4#
- 2.Se5#
- 2.Sfg5#
- 1...Qb7
- 2.Se1#
- 2.Sg1#
- 2.Sfd2#
- 2.Sh2#
- 2.Sd4#
- 2.Se5#
- 2.Sfg5#
- 2.Sg3#
- 2.Sd6#
- 2.Qh3#
- 1...Qc7
- 2.Sd4#
- 2.Se5#
- 2.Qh3#
- 1...Qd7
- 2.Se1#
- 2.Sg1#
- 2.Sfd2#
- 2.Sh2#
- 2.Sd4#
- 2.Se5#
- 2.Sfg5#
- 2.Sg3#
- 2.Qh3#
- 1...Qe7
- 2.Se1#
- 2.Sg1#
- 2.Sd2#
- 2.Sh2#
- 2.Sd4#
- 2.Se5#
- 2.Sg5#
- 2.Qh3#
- 1...Qf7
- 2.Se1#
- 2.Sg1#
- 2.Sfd2#
- 2.Sh2#
- 2.Sd4#
- 2.Se5#
- 2.Sfg5#
- 2.Sg3#
- 2.Sd6#
- 2.Qh3#
- 1...Qh7
- 2.Se1#
- 2.Sg1#
- 2.Sfd2#
- 2.Sh2#
- 2.Sd4#
- 2.Se5#
- 2.Sfg5#
- 2.Sg3#
- 2.Sd6#
- 2.Qh3#
- 1...Qg8
- 2.Se1#
- 2.Sg1#
- 2.Sfd2#
- 2.Sh2#
- 2.Sd4#
- 2.Se5#
- 2.Sfg5#
- 2.Sd6#
- 1...Qd4+
- 1.Qf1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- Q(c);CHECK,N_GUARD::S(D),XQ(c)
- Q(c);CHECK::QAB(B)+S(E)
- Q(c);CHECK::QAB(B)+S(E),XQ(c)
- Q(c);N_GUARD,P_PINS(E)::S(D)
- Actual
- Q(B);
- Vars
- Q(c);CHECK::QAR(B)+S(D),DCHECK,XQ(c)
- Q(c);CHECK::QAR(B)+S(D)
- Q(c);CHECK::QAR(B)+S(D),XQ(c)
- Q(c);CHECK::QAR(B)+S(D),DCHECK
- Q(c);N_GUARD,XB(I)::QAB(B)
- Q(c);N_GUARD,P_PINS(D)::S(E),XQ(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).