MESON Chess Problem Database
Problem Display
PID: 237261 (5N2/3q4/4Nn2/2Q1nk1p/4p3/4Bp1K/8/8 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Schweizerische Schachzeitung, 2013
#2
5 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa4
- 2.Sg7#
- 1...Qb5
- 2.Sd4#
- 2.Sg7#
- 1...Qc6
- 2.Sd4#
- 2.Sg7#
- 1...Qc8
- 2.Sd4#
- 2.Sg7#
- 1...Qe8
- 2.Sd4#
- 2.Sg7#
- 1...Qd1
- 2.Sg7#
- 1...Qd2
- 2.Sg7#
- 1...Qd3
- 2.Sg7#
- 1...Qd4
- 2.Sxd4#
- 2.Sg7#
- 1...Qd5
- 2.Sg7#
- 1...Qd6
- 2.Sg7#
- 1...Qa7
- 2.Sd4#
- 1...Qb7
- 2.Sd4#
- 1...Qc7
- 2.Sd4#
- 1...Qe7
- 2.Sd4#
- 1...Qf7
- 2.Sd4#
- 1...Qg7
- 2.Sd4#
- 2.Sxg7#
- 1...Qh7
- 2.Sd4#
- 1...Qd8
- 2.Sg7#
- 1...Qa4
- Tries
- 1.Qd6?
- threat
- 2.Sd4#
- 1...Qxe6
- 2.Qxe6#
- 1...Qxd6
- 2.Sg7#
- 1...Qa4
- 2.Sg7#
- 1...Sc6
- 2.Qf4#
- 1...Qa7!
- threat
- 1.Qd6?
- Keys
- 1.Qe7!
- threat
- 2.Sg7#
- 1...Qxe6
- 2.Qxe6#
- 1...Qxe7
- 2.Sd4#
- 1...Se8
- 2.Qg5#
- threat
- 1.Qe7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(g);N_GUARD::S(D)
- Q(g);N_GUARD,N_SPINS(c)::S(D)
- Tries
- Try
- Q(C);N_PINS(c)
- Threat
- S(D)
- Vars
- Q(g);OGATE,XS(D)::QAB1(C),XQ(g)
- Q(g);N_GUARD,XQ(C)::S(D)
- Q(g);N_GUARD::S(D)
- S(c);OGATE::QAR1(C)
- Refutation
- Q(g);
- Try
- Actual
- Q(C);N_PINS(c)
- Threat
- S(D)
- Vars
- Q(g);OGATE,XS(D)::QAB1(C),XQ(g)
- Q(g);N_GUARD,XQ(C)::S(D)
- S(f);OGATE::QAR1(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).