MESON Chess Problem Database

Problem Display
PID: 795 (5kN1/6p1/6p1/2P3p1/K2BRq2/1B3Q2/5n2/5R2 w - - 0 1)

Morse, Christopher Jeremy

British Chess Magazine, 1962

5kN1/6p1/6p1/2P3p1/K2BRq2/1B3Q2/5n2/5R2

#2

8 + 6

3147 Chess Problems: Introduction to an Art 1963

SOLUTION

  • SOUND
  • Sets
    • 1...Qf7
      • 2.Qxf7#
    • 1...g4
      • 2.Qxf4#
  • Tries
    • 1.Rxf4+?
      • 1...gxf4
        • 2.Qa8#
      • 1...Ke8!
  • Keys
    • 1.Re7!
      • 1...Qxf3
        • 2.Bxg7#
      • 1...Qf7
        • 2.Qxf7#
      • 1...Qf5
        • 2.Bxg7#
      • 1...Qf6
        • 2.Qa8#
      • 1...Sd1
        • 2.Qa8#
      • 1...Sh1
        • 2.Qa8#
      • 1...Sd3
        • 2.Qa8#
      • 1...Sh3
        • 2.Qa8#
      • 1...Se4
        • 2.Bxg7#
      • 1...Sg4
        • 2.Qa8#
      • 1...g4
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • Q(b);OGATE::QAR1(C),XQ(b)
    • P(c);N_GUARD::QAR(C),XQ(b)
  • Tries
    • Try
      • R(F);CHECK,XQ(b)
      • Vars
        • P(c);P_SPINP(c),XR(F)::QAR(C)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • R(F);P_SPINB(E)
    • Vars
      • Q(b);N_PINB(E),N_SPINQ(b),XQ(C)::B(E),XP(e)
      • Q(b);N_PINB(E),OGATE::QAR1(C),XQ(b)
      • Q(b);N_PINB(E)::B(E),XP(e)
      • Q(b);N_GUARD,N_PINB(E)::QAR(C)
      • S(a);::QAR(C)
      • S(a);N_PINB(E)::B(E),XP(e)
      • P(c);N_GUARD::QAR(C),XQ(b)
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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).