MESON Chess Problem Database
Problem Display
PID: 81535 (8/3p1q2/3R4/3PkN2/2P1Pp2/B1P5/1Q5P/1BN4K w - - 0 1)
Schatz, Max
Die Schwalbe, 2008
#2
12 + 4
SOLUTION
- SOUND
- Tries
- 1.Qd2?
- threat
- 2.Qd4#
- 1...Qxd5
- 2.Qxd5#
- 1...f3!
- threat
- 1.Qe2?
- threat
- 2.Sd3#
- 1...Qxd5
- 2.exd5#
- 1...Qe6!
- threat
- 1.Qf2?
- threat
- 2.Qd4#
- 1...f3
- 2.Qg3#
- 1...Qxd5!
- threat
- 1.Qg2?
- threat
- 2.Sd3#
- 1...Qxd5
- 2.Qg7#
- 1...f3
- 2.Qg3#
- 1...Qe6!
- threat
- 1.Qb6?
- threat
- 2.Qd4#
- 1...Qxd5
- 2.Rxd5#
- 1...f3!
- threat
- 1.Qd2?
- Keys
- 1.Qb8!
- threat
- 2.Re6#
- 1...Qxd5
- 2.Qh8#
- 1...Qe6
- 2.Rxe6#
- threat
- 1.Qb8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- Q(d);OGATE,P_PINP(I),XP(J)::QAR1(D),XQ(d)
- Refutation
- P(a);
- Try
- Q(D);
- Threat
- S(B)
- Vars
- Q(d);OGATE,P_PINP(I),XP(J)::QAR(D)+P(I),XQ(d)
- Refutation
- Q(d);
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- P(a);OGATEB::QAB(D)
- Refutation
- Q(d);P_PINP(I),XP(J)
- Try
- Q(D);
- Threat
- S(B)
- Vars
- Q(d);N_GUARD,XP(J)::QAB(D)
- P(a);OGATEB::QAB(D)
- Refutation
- Q(d);
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- Q(d);OGATE,P_PINP(I),XP(J)::R1(L),XQ(d)
- Refutation
- P(a);
- Try
- Actual
- Q(D);
- Threat
- QAB(D)+R(L),DCHECK
- Vars
- Q(d);N_GUARD,P_PINP(I),XP(J)::QAB(D)
- Q(d);::QAB(D)+R(L),DCHECK,XQ(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).