MESON Chess Problem Database
Problem Display
PID: 81494 (8/8/4p3/2q5/8/1P1P4/PBk1B3/KN3N2 w - - 0 1)
Macleod, Norman Alasdair
Mat, 1981
#2
8 + 3
| 6455 | The Chessboard Adventures of Norman Macleod | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Sa3#
- 1...Qf2
- 2.Sa3#
- 1...Qa3
- 2.Sxa3#
- 2.Se3#
- 1...Qe3
- 2.Sa3#
- 2.Sxe3#
- 1...Qb4
- 2.Se3#
- 1...Qd4
- 2.Sa3#
- 1...Qb6
- 2.Sa3#
- 1...Qd6
- 2.Se3#
- 1...Qe7
- 2.Se3#
- 1...Qf8
- 2.Se3#
- 1...Qc3
- 2.Sa3#
- 2.Se3#
- 1...Qc4
- 2.Sa3#
- 2.Se3#
- 1...Qa5
- 2.Se3#
- 1...Qb5
- 2.Sa3#
- 2.Se3#
- 1...Qd5
- 2.Sa3#
- 2.Se3#
- 1...Qe5
- 2.Sa3#
- 1...Qf5
- 2.Sa3#
- 2.Se3#
- 1...Qg5
- 2.Sa3#
- 1...Qh5
- 2.Sa3#
- 2.Se3#
- 1...Qc6
- 2.Sa3#
- 2.Se3#
- 1...Qc7
- 2.Sa3#
- 2.Se3#
- 1...Qc8
- 2.Sa3#
- 2.Se3#
- 1...Qg1
- Tries
- 1.b4?
- threat
- 2.Sa3#
- 1...Qxb4
- 2.Se3#
- 1...Qc3
- 2.Se3#
- 1...Qa5
- 2.Se3#
- 1...Qa7!
- threat
- 1.b4?
- Keys
- 1.d4!
- threat
- 2.Se3#
- 1...Qxd4
- 2.Sa3#
- 1...Qc3
- 2.Sa3#
- 1...Qe5
- 2.Sa3#
- 1...Qg5
- 2.Sa3#
- threat
- 1.d4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- Q(b);N_GUARD::S(B)
- Q(b);N_GUARD::S(C)
- Q(b);N_GUARD,P_PINB(E)::S(B)
- Q(b);N_GUARD,P_PINP(D)::S(C)
- Tries
- Try
- P(G);
- Threat
- S(B)
- Vars
- Q(b);N_GUARD,XP(G)::S(C)
- Q(b);N_GUARD,P_PINB(E)::S(C)
- Q(b);N_GUARD,P_PINP(D)::S(C)
- Refutation
- Q(b);P_PINP(D)
- Try
- Actual
- P(H);
- Threat
- S(C)
- Vars
- Q(b);N_GUARD,P_PINB(E),XP(H)::S(B)
- Q(b);N_GUARD,P_PINB(E)::S(B)
- Q(b);N_GUARD::S(B)
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).