MESON Chess Problem Database
Problem Display
PID: 40194 (K5NR/3P2p1/6k1/3Qpb2/R3n2P/8/2B3q1/6b1 w - - 0 1)
Thomson, PC
Recomm., BCF 025. Ty., 1937-1938
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Be6
- 2.Qxe6#
- 1...Sf2
- 2.Ra6#
- 1...Sg3
- 2.Rg4#
- 1...Sg5
- 2.h5#
- 1...Sf6
- 2.Se7#
- 1...Be6
- Tries
- 1.Ra6+?
- 1...Be6
- 2.Qxe6#
- 1...Sd6
- 2.Rxd6#
- 1...Sf6
- 2.Se7#
- 1...Bb6!
- 1...Be6
- 1.Ra6+?
- Keys
- 1.d8S!
- threat
- 2.Qf7#
- 1...Be6
- 2.Qxe6#
- 1...Sd2
- 2.Qxg2#
- 1...Sf2
- 2.Ra6#
- 1...Sc3
- 2.Qxg2#
- 1...Sg3
- 2.Rg4#
- 1...Sc5
- 2.Qxg2#
- 1...Sg5
- 2.h5#
- 1...Sd6
- 2.Qxg2#
- 1...Sf6
- 2.Se7#
- threat
- 1.d8S!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD,P_SPINS(c)::QAR2(D),XB(e)
- S(c);N_GUARD,P_PINQ(D),P_SPINB(e),S_CUTB(a)::R(B)
- S(c);OGATE,P_PINQ(D),P_SPINB(e)::R(B)
- S(c);P_PINQ(D),P_SPINB(e),SBLOCK::P(C)
- S(c);P_PINQ(D),P_SPINB(e),SBLOCK::S(G)
- Tries
- Try
- R(B);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e),P_SPINS(c)::QAR2(D),XB(e)
- S(c);N_GUARD,P_PINQ(D),P_SPINB(e),P_SPINS(c)::R(B),XS(c)
- S(c);P_PINQ(D),P_SPINB(e),P_SPINS(c)::S(G)
- Refutation
- B(a);P_SPINB(a)
- Try
- Actual
- P(E);
- Threat
- QAB1(D)
- Vars
- B(e);N_GUARD,P_SPINS(c)::QAR2(D),XB(e)
- S(c);OGATE,P_PINQ(D),P_SPINB(e)::QAR(D),XQ(b)
- S(c);N_GUARD,P_PINQ(D),P_SPINB(e),S_CUTB(a)::R(B)
- S(c);OGATE,P_PINQ(D),P_SPINB(e)::R(B)
- S(c);P_PINQ(D),P_SPINB(e),SBLOCK::P(C)
- S(c);P_PINQ(D),P_SPINB(e),SBLOCK::S(G)
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).