MESON Chess Problem Database
Problem Display
PID: 233303 (3b4/1K6/3Np3/p1NkB1p1/1pRP4/q7/Q1b5/2r5 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schach-Aktiv, 2009
#2
7 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bb3
- 2.Qg2#
- 1...Bb3
- Tries
- 1.Sd3?
- threat
- 2.Rc5#
- 1...Bb3
- 2.Qg2#
- 1...b3!
- threat
- 1.Sce4?
- threat
- 2.Rc5#
- 1...b3
- 2.Sc3#
- 1...Bb3!
- threat
- 1.Sa6?
- threat
- 2.Rc5#
- 1...Bb3
- 2.Qg2#
- 1...b3!
- threat
- 1.Sd7?
- threat
- 2.Rc5#
- 1...Bb3
- 2.Qg2#
- 1...b3!
- threat
- 1.Sd3?
- Keys
- 1.Sa4!
- threat
- 2.Rc5#
- 1...Bb3
- 2.Qg2#
- 1...b3
- 2.Sc3#
- threat
- 1.Sa4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);OGATE::QAB(A)
- Tries
- Try
- S(D);
- Threat
- QAB(A)+R(B),DCHECK
- Vars
- B(b);OGATE::QAB(A)
- Refutation
- P(d);
- Try
- S(D);
- Threat
- QAB(A)+R(B),DCHECK
- Vars
- P(d);N_GUARD,S_CUTQ(c)::S(D)
- Refutation
- B(b);
- Try
- S(D);
- Threat
- QAB(A)+R(B),DCHECK
- Vars
- B(b);OGATE::QAB(A)
- Refutation
- P(d);
- Try
- S(D);
- Threat
- QAB(A)+R(B),DCHECK
- Vars
- B(b);OGATE::QAB(A)
- Refutation
- P(d);
- Try
- Actual
- S(D);
- Threat
- QAB(A)+R(B),DCHECK
- Vars
- B(b);OGATE::QAB(A)
- P(d);N_GUARD,S_CUTQ(c)::S(D)
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).