MESON Chess Problem Database
Problem Display
PID: 53413 (3k1N2/2pPp3/8/6Q1/3n4/7K/pp6/RR6 w - - 0 1)
van Allemeersch, J
Het Belgisch Schaakbord (L'Echiquier Belge), 1949
#2
6 + 6
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...axb1Q
- 2.Ra8#
- 1...axb1S
- 2.Ra8#
- 1...axb1B
- 2.Ra8#
- 1...axb1R
- 2.Ra8#
- 1...bxa1Q
- 2.Rb8#
- 1...bxa1S
- 2.Rb8#
- 1...bxa1B
- 2.Rb8#
- 1...bxa1R
- 2.Rb8#
- 1...c6
- 2.Qa5#
- 1...axb1Q
- Tries
- 1.Qh5?
- threat
- 2.Qe8#
- 1...c6
- 2.Qa5#
- 1...c5!
- threat
- 1.Qg6?
- threat
- 2.Qe8#
- 1...c5
- 2.Qb6#
- 1...c6!
- threat
- 1.Qh5?
- Keys
- 1.Qd2!
- 1...axb1Q
- 2.Ra8#
- 1...axb1S
- 2.Ra8#
- 1...axb1B
- 2.Ra8#
- 1...axb1R
- 2.Ra8#
- 1...bxa1Q
- 2.Rb8#
- 1...bxa1S
- 2.Rb8#
- 1...bxa1B
- 2.Rb8#
- 1...bxa1R
- 2.Rb8#
- 1...c5
- 2.Qa5#
- 1...c6
- 2.Qa5#
- 1...e5
- 2.Qg5#
- 1...e6
- 2.Qg5#
- 1...Sc2
- 2.Se6#
- 1...Se2
- 2.Se6#
- 1...Sb3
- 2.Se6#
- 1...Sf3
- 2.Se6#
- 1...Sb5
- 2.Se6#
- 1...Sf5
- 2.Se6#
- 1...Sc6
- 2.Se6#
- 1...Se6
- 2.Sxe6#
- 1...axb1Q
- 1.Qd2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- P(a);OGATE,XR(B)::R(A)
- P(b);OGATE,XR(A)::R(B)
- P(d);OGATEB::QAB(D)
- Tries
- Try
- Q(D);N_PINP(e)
- Threat
- QAR1(D)
- Vars
- P(d);OGATEB::QAB(D)
- Refutation
- P(d);
- Try
- Q(D);N_PINP(e)
- Threat
- QAR1(D)
- Vars
- P(d);OGATEB::QAB(D)
- Refutation
- P(d);
- Try
- Actual
- Q(D);N_PINP(e)
- Vars
- P(a);OGATE,XR(B)::R(A)
- P(b);OGATE,XR(A)::R(B)
- P(d);OGATEB::QAB(D)
- P(e);OGATEB::QAB(D)
- S(c);N_GUARD::S(F)
- S(c);N_GUARD::S(F),XS(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).