MESON Chess Problem Database
Problem Display
PID: 197329 (q7/2p5/6B1/2P1Q1p1/8/4BPK1/2P5/7k w - - 0 1)
Diehl, Alexander
Hannoversche Allgemeine Zeitung, 2001
(First published on Sat Apr 14 2001)
#2
7 + 4
| 16210 | Problemschach-Jahrbuch (2001) | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Qa1#
- 1...Qd5
- 2.Qh8#
- 1...Qc6
- 2.Qa1#
- 2.Qh8#
- 1...Qb7
- 2.Qh8#
- 1...Qa1
- 2.Qxa1#
- 1...Qa2
- 2.Qh8#
- 1...Qa3
- 2.Qh8#
- 1...Qa5
- 2.Qh8#
- 1...Qa6
- 2.Qh8#
- 1...Qa7
- 2.Qh8#
- 1...Qc8
- 2.Qa1#
- 1...Qe8
- 2.Qa1#
- 1...Qf8
- 2.Qa1#
- 1...Qg8
- 2.Qa1#
- 1...Qh8
- 2.Qxh8#
- 1...g4
- 2.Qh5#
- 1...Qe4
- Tries
- 1.Qc3?
- threat
- 2.Qe1#
- 1...Qa1
- 2.Qxa1#
- 1...Qa5
- 2.Qh8#
- 1...Qa6
- 2.Qh8#
- 1...Qxf3+!
- threat
- 1.Qc3?
- Keys
- 1.Be4!
- 1...Qxe4
- 2.Qa1#
- 1...Qd5
- 2.Qh8#
- 1...Qc6
- 2.Qa1#
- 1...Qb7
- 2.Qh8#
- 1...Qa1
- 2.Qxa1#
- 2.f4#
- 1...Qa2
- 2.Qh8#
- 2.f4#
- 1...Qa3
- 2.Qh8#
- 2.f4#
- 1...Qa4
- 2.Qh8#
- 1...Qa5
- 2.Qh8#
- 2.f4#
- 1...Qa6
- 2.f4#
- 1...Qa7
- 2.Qh8#
- 2.f4#
- 1...Qb8
- 2.f4#
- 1...Qc8
- 2.Qa1#
- 2.f4#
- 1...Qd8
- 2.f4#
- 1...Qe8
- 2.Qa1#
- 2.f4#
- 1...Qf8
- 2.Qa1#
- 2.f4#
- 1...Qg8
- 2.Qa1#
- 2.f4#
- 1...Qh8
- 2.Qxh8#
- 2.f4#
- 1...g4
- 2.Qh5#
- 1...c6
- 2.f4#
- 1...Qxe4
- 1.Be4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 10
- Sets
- Q(d);N_GUARD::QAB1(F)
- Q(d);N_GUARD::QAB(F)
- Q(d);N_GUARD::QAB1(F),XQ(d)
- Q(d);N_GUARD,SBLOCK::QAB(F)
- Q(d);N_GUARD::QAB(F),XQ(d)
- P(b);OGATE::QAR(F)
- Tries
- Try
- Q(F);
- Threat
- QAR(F)
- Vars
- Q(d);N_GUARD::QAB1(F),XQ(d)
- Q(d);N_GUARD::QAB(F)
- Refutation
- Q(d);CHECK,XP(C)
- Try
- Actual
- B(G);
- Vars
- Q(d);N_GUARD,XB(G)::QAB1(F)
- Q(d);N_GUARD::QAB(F)
- Q(d);N_GUARD::QAB1(F)
- Q(d);N_GUARD::B(G)+P(C)
- P(b);OGATE::QAR(F)
- P(c);S_CUTQ(d)::B(G)+P(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).