MESON Chess Problem Database

Problem Display
PID: 71151 (2b3q1/1p1B3R/2p1n3/5n1R/3P2k1/1Q2p3/K1P3NP/6N1 w - - 0 1)

Buchwald, Julius

Chess, 1951

2b3q1/1p1B3R/2p1n3/5n1R/3P2k1/1Q2p3/K1P3NP/6N1

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sg3
      • 2.h3#
    • 1...Sxd4
      • 2.Qxg8#
    • 1...Sf4
      • 2.Sxe3#
    • 1...Sc5
      • 2.Qxg8#
    • 1...Sg5
      • 2.Rh4#
    • 1...Sc7
      • 2.Qxg8#
    • 1...Sd8
      • 2.Qxg8#
    • 1...e2
      • 2.Qf3#
      • 2.Qh3#
      • 2.h3#
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qe2#
      • 1...Sfxd4
        • 2.Qxd4#
      • 1...Sexd4
        • 2.Qxg8#
      • 1...Sg3
        • 2.h3#
      • 1...Sh4
        • 2.d5#
      • 1...Sf4
        • 2.Sxe3#
      • 1...Sc5
        • 2.Qxg8#
      • 1...Sg5
        • 2.Rh4#
      • 1...Sc7
        • 2.Qxg8#
        • 2.d5#
      • 1...Seg7
        • 2.d5#
      • 1...Sd8
        • 2.Qxg8#
        • 2.d5#
      • 1...Sf8
        • 2.d5#
      • 1...e2
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(c);P_SPINS(e),SBLOCK::P(E)
    • S(e);OGATE,P_PINQ(F),P_SPINS(c),XP(G)::QAR(F),XQ(h)
    • S(e);P_PINQ(F),P_SPINS(c),SBLOCK::S(D),XP(a)
    • S(e);OGATE,P_PINQ(F),P_SPINS(c)::QAR(F),XQ(h)
    • S(e);P_PINQ(F),P_SPINS(c),SBLOCK::R1(H)
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • S(c);OGATE,P_SPINS(c),XP(G)::QAR(F),XS(c)
      • S(e);OGATE,P_PINQ(F),P_SPINS(e),XP(G)::QAR(F),XQ(h)
      • S(c);P_SPINS(e),SBLOCK::P(E)
      • S(c);N_GUARD,P_SPINS(e)::QAR(F)+P(G)
      • S(e);P_PINQ(F),P_SPINS(c),SBLOCK::S(D),XP(a)
      • S(e);OGATE,P_PINQ(F),P_SPINS(c)::QAR(F),XQ(h)
      • S(e);P_PINQ(F),P_SPINS(c),SBLOCK::R1(H)
      • S(e);N_GUARD,P_PINQ(F),P_SPINS(c)::QAR(F)+P(G)
      • P(a);::QAB(F),XP(a)
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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).