MESON Chess Problem Database
Problem Display
PID: 10724 (8/1q6/8/8/8/3Q2R1/1p6/1K3N1k w - - 0 1)
Renn, Albert
Schach-Echo, 1967
#2
4 + 3
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Qf3
- 2.Qxf3#
- 1...Qe4
- 2.Qxe4#
- 1...Qd5
- 2.Qxd5#
- 1...Qa6
- 2.Qe4#
- 2.Qf3#
- 2.Qd5#
- 1...Qa8
- 2.Qh7#
- 1...Qc8
- 2.Qe4#
- 2.Qf3#
- 2.Qd5#
- 1...Qb3
- 2.Qh7#
- 1...Qb4
- 2.Qf3#
- 1...Qb5
- 2.Qe4#
- 2.Qf3#
- 1...Qb6
- 2.Qe4#
- 2.Qf3#
- 2.Qd5#
- 1...Qa7
- 2.Qe4#
- 2.Qf3#
- 2.Qd5#
- 1...Qc7
- 2.Qe4#
- 2.Qf3#
- 2.Qd5#
- 1...Qd7
- 2.Qe4#
- 2.Qf3#
- 1...Qe7
- 2.Qf3#
- 1...Qg7
- 2.Qe4#
- 2.Qf3#
- 2.Qd5#
- 1...Qh7
- 2.Qxh7#
- 1...Qb8
- 2.Qe4#
- 2.Qh7#
- 2.Qf3#
- 2.Qd5#
- 1...Qf3
- Tries
- 1.Qe2?
- threat
- 2.Qh5#
- 2.Qh2#
- 1...Qe4+
- 2.Qxe4#
- 1...Qg2
- 2.Qxg2#
- 1...Qf3
- 2.Qxf3#
- 2.Qh2#
- 1...Qd5
- 2.Qh2#
- 1...Qc8
- 2.Qf3#
- 2.Qg2#
- 2.Qh2#
- 2.Qe4#
- 1...Qb4
- 2.Qf3#
- 2.Qg2#
- 2.Qh2#
- 1...Qb5
- 2.Qf3#
- 2.Qg2#
- 2.Qh2#
- 2.Qe4#
- 1...Qd7
- 2.Qf3#
- 2.Qg2#
- 2.Qh2#
- 2.Qe4#
- 1...Qe7
- 2.Qf3#
- 2.Qg2#
- 2.Qh2#
- 1...Qf7
- 2.Qg2#
- 2.Qh2#
- 1...Qh7+!
- threat
- 1.Qf5?
- threat
- 2.Qh3#
- 2.Qh5#
- 1...Qe4+
- 2.Qxe4#
- 1...Qf3
- 2.Qh3#
- 2.Qxf3#
- 1...Qd5
- 2.Qh3#
- 2.Qxd5#
- 1...Qc8
- 2.Qe4#
- 2.Qf3#
- 2.Qd5#
- 1...Qb4
- 2.Qh3#
- 2.Qf3#
- 1...Qb5
- 2.Qh3#
- 2.Qe4#
- 2.Qf3#
- 1...Qd7
- 2.Qe4#
- 2.Qf3#
- 1...Qe7
- 2.Qh3#
- 2.Qf3#
- 1...Qf7
- 2.Qh3#
- 1...Qh7
- 2.Qxh7#
- 1...Qg2!
- threat
- 1.Qg6?
- threat
- 2.Rg1#
- 2.Rh3#
- 2.Qh5#
- 2.Qh6#
- 1...Qe4+
- 2.Qxe4#
- 1...Qb3
- 2.Rg1#
- 2.Qh5#
- 2.Qh7#
- 2.Qh6#
- 1...Qf3
- 2.Rg1#
- 1...Qd5
- 2.Rg1#
- 2.Rh3#
- 1...Qa6
- 2.Rg1#
- 2.Rh3#
- 2.Qe4#
- 2.Qh5#
- 1...Qc6
- 2.Rg1#
- 2.Rh3#
- 2.Qh5#
- 2.Qxc6#
- 1...Qc8
- 2.Rg1#
- 2.Qe4#
- 1...Qb4
- 2.Rg1#
- 2.Rh3#
- 1...Qb5
- 2.Rg1#
- 2.Rh3#
- 2.Qe4#
- 1...Qb6
- 2.Rh3#
- 2.Qe4#
- 2.Qh5#
- 1...Qa7
- 2.Rh3#
- 2.Qe4#
- 2.Qh5#
- 2.Qc6#
- 2.Qh6#
- 1...Qc7
- 2.Rg1#
- 2.Qe4#
- 2.Qh5#
- 2.Qh6#
- 1...Qd7
- 2.Rg1#
- 2.Qe4#
- 1...Qe7
- 2.Rg1#
- 2.Rh3#
- 1...Qf7
- 2.Rg1#
- 2.Rh3#
- 1...Qg7
- 2.Rg1#
- 2.Rh3#
- 2.Qe4#
- 2.Qh5#
- 2.Qc6#
- 1...Qh7
- 2.Rg1#
- 2.Qxh7#
- 1...Qb8
- 2.Rg1#
- 2.Qe4#
- 2.Qh5#
- 2.Qh7#
- 2.Qc6#
- 2.Qh6#
- 1...Qg2!
- threat
- 1.Qe2?
- Keys
- 1.Qc2!
- threat
- 2.Qh2#
- 1...Qg2
- 2.Qxg2#
- 1...Qe4
- 2.Qxe4#
- 1...Qh7
- 2.Qxh7#
- threat
- 1.Qc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- Q(c);N_GUARD::QAB(C),XQ(c)
- Q(c);N_GUARD,P_PINQ(C)::QAB(C),XQ(c)
- Q(c);N_GUARD::QAR(C)
- Q(c);N_GUARD::QAB(C)
- Q(c);N_GUARD,P_PINQ(C)::QAR(C),XQ(c)
- Tries
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,N_GUARD::QAB(C),XQ(c)
- Q(c);N_GUARD::QAB1(C),XQ(c)
- Q(c);::QAR1(C)
- Refutation
- Q(c);CHECK
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,N_GUARD::QAB(C),XQ(c)
- Q(c);::QAR2(C)
- Q(c);N_GUARD,P_PINQ(C)::QAR(C),XQ(c)
- Refutation
- Q(c);
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- Q(c);CHECK,N_GUARD::QAB(C),XQ(c)
- Q(c);::R1(D)
- Refutation
- Q(c);
- Try
- Actual
- Q(C);
- Threat
- QAR1(C)
- Vars
- Q(c);N_GUARD::QAB1(C),XQ(c)
- Q(c);N_GUARD,P_PINQ(C)::QAB(C),XQ(c)
- Q(c);N_GUARD,P_PINQ(C)::QAR(C),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).