MESON Chess Problem Database
Problem Display
PID: 6723 (8/8/1Np5/K1k5/6q1/2PQ4/8/8 w - - 0 1)
Lazard, Frederic
Die Schwalbe, 1933
#2
4 + 3
| 2012 | Miniature Chess Problems from Many Countries | 1981 |
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sd7#
- 1...Qe2
- 2.Sa4#
- 2.Sd7#
- 2.Qd4#
- 1...Qf3
- 2.Sa4#
- 2.Sd7#
- 2.Qd4#
- 1...Qh3
- 2.Sa4#
- 2.Qd4#
- 1...Qf5
- 2.Sa4#
- 2.Qd4#
- 1...Qh5
- 2.Sa4#
- 2.Sd7#
- 2.Qd4#
- 1...Qe6
- 2.Sa4#
- 2.Qd4#
- 1...Qd7
- 2.Sa4#
- 2.Sxd7#
- 1...Qc8
- 2.Sa4#
- 2.Qd4#
- 1...Qg1
- 2.Sa4#
- 2.Sd7#
- 1...Qg2
- 2.Sa4#
- 2.Sd7#
- 2.Qd4#
- 1...Qg3
- 2.Sa4#
- 2.Sd7#
- 2.Qd4#
- 1...Qa4+
- 2.Sxa4#
- 1...Qb4+
- 2.cxb4#
- 1...Qc4
- 2.Sd7#
- 1...Qd4
- 2.Qxd4#
- 1...Qe4
- 2.Sd7#
- 1...Qf4
- 2.Sd7#
- 1...Qh4
- 2.Sd7#
- 1...Qg5
- 2.Sa4#
- 2.Sd7#
- 2.Qd4#
- 1...Qg6
- 2.Sa4#
- 2.Sd7#
- 2.Qd4#
- 1...Qg7
- 2.Sa4#
- 1...Qg8
- 2.Sa4#
- 2.Sd7#
- 2.Qd4#
- 1...Qd1
- Tries
- 1.Qe3+?
- 1...Qd4
- 2.Qxd4#
- 1...Kd6!
- 1...Qd4
- 1.Qe3+?
- Keys
- 1.c4!
- threat
- 2.Sa4#
- 1...Qxc4
- 2.Sd7#
- 1...Qd4
- 2.Qa3#
- 1...Qd1
- 2.Sd7#
- threat
- 1.c4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(a);N_GUARD::S(D)
- Q(a);CHECK,N_GUARD::S(D),XQ(a)
- Q(a);CHECK,OGATE::P(A),XQ(a)
- Q(a);N_GUARD::QAB1(B),XQ(a)
- Tries
- Try
- Q(B);CHECK
- Vars
- Q(a);N_GUARD,P_SPINQ(a)::QAB1(B),XQ(a)
- Refutation
- K(b);S_FLIGHT
- Try
- Actual
- P(A);
- Threat
- S(D)
- Vars
- Q(a);N_GUARD,XP(A)::S(D)
- Q(a);SBLOCK::QAB(B)
- Q(a);N_GUARD::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).