MESON Chess Problem Database
Problem Display
PID: 107992 (4q3/B1N5/5n2/4nQ2/2k2N2/R1P5/K3b3/8 w - - 0 1)
Dobrescu, Emilian
Sachove umeni (Ceskoslovensky sach), 1954
#2
7 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sf3
- 2.Qc5#
- 1...Seg4
- 2.Qc5#
- 1...Sc6
- 2.Qb5#
- 2.Qc5#
- 1...Sg6
- 2.Qc5#
- 1...Sed7
- 2.Qb5#
- 1...Sf7
- 2.Qc5#
- 1...Se4
- 2.Qxe4#
- 1...Sfg4
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...Sh5
- 2.Qe4#
- 1...Sfd7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...Sg8
- 2.Qe4#
- 1...Sf3
- Tries
- 1.Qe6+?
- 1...Sd5
- 2.Qxd5#
- 1...Qxe6!
- 1...Sd5
- 1.Qxe5?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...Qb5
- 2.Qd4#
- 2.Qxe2#
- 2.Qxb5#
- 1...Qh5
- 2.Ra4#
- 2.Qd4#
- 1...Qc6
- 2.Qd4#
- 2.Qxe2#
- 1...Qd7
- 2.Qc5#
- 1...Qe7
- 2.Qd4#
- 2.Qb5#
- 1...Qd8
- 2.Ra4#
- 2.Qb5#
- 2.Qc5#
- 1...Qf8
- 2.Qd4#
- 2.Qxe2#
- 2.Qb5#
- 1...Se4
- 2.Qd4#
- 2.Qd5#
- 1...Sd5
- 2.Qd4#
- 2.Qxd5#
- 1...Sd7
- 2.Ra4#
- 2.Qd4#
- 2.Qb5#
- 2.Qd5#
- 1...Qxe5!
- threat
- 1.Qe6+?
- Keys
- 1.Sfd5!
- threat
- 2.Se3#
- 1...Sxd5
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sd3
- 2.Sb6#
- 1...Sf3
- 2.Sb6#
- 1...Seg4
- 2.Sb6#
- 1...Sc6
- 2.Sb6#
- 1...Sg6
- 2.Sb6#
- 1...Sed7
- 2.Ra4#
- 1...Sf7
- 2.Sb6#
- 1...Sfg4
- 2.Qe4#
- threat
- 1.Sfd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- S(c);OGATE::QAR1(E)
- S(c);OGATE::QAB1(E)
- S(d);N_GUARD::QAR2(E),XS(d)
- S(d);N_GUARD::QAR2(E)
- Tries
- Try
- Q(E);CHECK
- Vars
- S(d);N_GUARD,P_SPINS(d)::QAB1(E),XS(d)
- Refutation
- Q(e);XQ(E)
- Try
- Q(E);XS(c)
- Threat
- DUALS(2)
- Vars
- Q(e);::QAR1(E)
- Refutation
- Q(e);XQ(E)
- Try
- Actual
- S(D);
- Threat
- S(D)
- Vars
- S(d);N_GUARD,XS(D)::QAR2(E)
- S(d);N_GUARD::QAR2(E),XS(d)
- S(c);::S(D)
- S(c);S_CUTQ(e)::R(B)
- S(d);N_GUARD::QAR2(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).