MESON Chess Problem Database
Problem Display
PID: 147092 (8/2PR1p2/1Qp5/5KpP/1P2PNPk/P3pP1p/4PRBB/6N1 w - g5 0 1)
Whitehead, Cyril
Comm., Australian Chess Problem Magazine TT, 1996
#2
16 + 6
SOLUTION
- SOUND
- Sets
- 1...exf2
- 2.Qxf2#
- 1...hxg2
- 2.Sxg2#
- 1...f6
- 2.Sg6#
- 1...exf2
- Tries
- 1.Qd4?
- 1...exf2
- 2.Qxf2#
- 1...hxg2
- 2.Sxg2#
- 1...gxf4
- 2.Qf6#
- 1...f6
- 2.Sg6#
- 1...c5!
- 1...exf2
- 1.Qc5?
- 1...exf2
- 2.Qxf2#
- 1...hxg2
- 2.Sxg2#
- 1...f6
- 2.Sg6#
- 1...gxf4!
- 1...exf2
- 1.Qxc6?
- 1...hxg2
- 2.Sxg2#
- 1...gxf4
- 2.Qf6#
- 1...f6
- 2.Sg6#
- 1...exf2!
- 1...hxg2
- 1.Qd4?
- Keys
- 1.hxg5 ep!
- 1...fxg6+
- 2.Sxg6#
- 1...exf2
- 2.Qxf2#
- 1...hxg2
- 2.Sxg2#
- 1...c5
- 2.Qf6#
- 1...f6
- 2.Rh7#
- 1...fxg6+
- 1.hxg5 ep!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- P(a);OGATE,XR(C)::QAB(N),XP(a)
- P(b);XB(D)::S(J),XP(b)
- P(f);N_GUARD::S(J)
- Tries
- Try
- Q(N);
- Vars
- P(a);OGATE,XR(C)::QAB(N),XP(a)
- P(b);XB(D)::S(J),XP(b)
- P(d);OGATEB,XS(J)::QAB(N)
- P(f);N_GUARD::S(J)
- Refutation
- P(e);
- Try
- Q(N);
- Vars
- P(a);OGATE,XR(C)::QAB(N),XP(a)
- P(b);XB(D)::S(J),XP(b)
- P(f);N_GUARD::S(J)
- Refutation
- P(d);XS(J)
- Try
- Q(N);XP(e)
- Vars
- P(b);XB(D)::S(J),XP(b)
- P(d);OGATEB,XS(J)::QAB(N)
- P(f);N_GUARD::S(J)
- Refutation
- P(a);XR(C)
- Try
- Actual
- P(M);EP,XP(d)
- Vars
- P(f);CHECK,XP(M)::S(J),XP(f)
- P(a);OGATE,XR(C)::QAB(N),XP(a)
- P(b);XB(D)::S(J),XP(b)
- P(e);OGATE::QAB(N)
- P(f);OGATE::R(P)
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).