MESON Chess Problem Database
Problem Display
PID: 258607 (8/8/1n6/8/3pkN2/1Q1N4/3P4/K7 w - - 0 1)
Williams, Albert H
English Mechanic and World of Science, 1900
(First published on Fri Sep 21 1900)
#2
5 + 3
| 15239 | Valois Notebooks | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sa4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sa4
- Tries
- 1.Qf7?
- 1...Sa4
- 2.Qd5#
- 1...Sc4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Kf3!
- 1...Sa4
- 1.Qb5?
- 1...Sd5
- 2.Qxd5#
- 1...Sa4
- 2.Qd5#
- 1...Sc4
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Kf3!
- 1...Sd5
- 1.Qxb6?
- 1...Kf5
- 2.Qg6#
- 1...Kf3!
- 1...Kf5
- 1.Qf7?
- Keys
- 1.Qg8!
- 1...Kf3
- 2.Qg2#
- 1...Kf5
- 2.Qg6#
- 1...Sa4
- 2.Qd5#
- 1...Sc4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7
- 2.Qd5#
- 1...Sa8
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Kf3
- 1.Qg8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::QAB1(C)
- S(c);N_GUARD::QAB1(C),XS(c)
- Tries
- Try
- Q(C);
- Vars
- S(c);N_GUARD::QAB1(C)
- S(c);N_GUARD::QAB1(C),XS(c)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(C);
- Vars
- S(c);N_GUARD::QAB1(C),XS(c)
- S(c);N_GUARD::QAB1(C)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(C);XS(c)
- Vars
- K(b);N_GUARD,S_FLIGHT::QAB1(C)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- Q(C);
- Vars
- K(b);N_GUARD,S_FLIGHT::QAB1(C)
- S(c);N_GUARD::QAB1(C)
- S(c);N_GUARD::QAB1(C),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).