MESON Chess Problem Database

Problem Display
PID: 17607 (6B1/Np2n3/b1pp4/P1k5/1R3N2/1P1p4/2qB2K1/1rQ5 w - - 0 1)

Gooderson, Arthur R

8th HM., BCPS, 1948

6B1/Np2n3/b1pp4/P1k5/1R3N2/1P1p4/2qB2K1/1rQ5

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Qg1#
    • 1...Rxb3
      • 2.Qg1#
    • 1...Sd5
      • 2.Se6#
    • 1...b5
      • 2.Sxd3#
  • Tries
    • 1.Qxc2+?
      • 1...Bc4
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...dxc2!
  • Keys
    • 1.Re4!
      • threat
        • 2.Qa3#
      • 1...Qxc1
        • 2.Bb4#
      • 1...Rxc1
        • 2.b4#
      • 1...Rxb3
        • 2.Qg1#
      • 1...Qc3
        • 2.Be3#
      • 1...Qc4
        • 2.Sxd3#
      • 1...Ra1
        • 2.b4#
      • 1...Rb2
        • 2.Qg1#
      • 1...Sd5
        • 2.Se6#
      • 1...b5
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD::QAB(A)
    • R(a);N_GUARD,XP(D)::QAB(A)
    • S(i);SBLOCK::S(F)
    • P(h);S_CUTB(e)::S(F),XP(c)
  • Tries
    • Try
      • Q(A);CHECK,N_SPINB(B),XQ(b)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • R(E);
    • Threat
      • QAB(A)
    • Vars
      • Q(b);N_PINB(B),N_SPINQ(b),XQ(A)::B(B)
      • R(a);N_GUARD,N_SPINQ(b),XQ(A)::P(D)
      • R(a);N_GUARD,XP(D)::QAB(A)
      • Q(b);N_PINB(B)::B(B)
      • Q(b);N_PINB(B),S_CUTB(e)::S(F),XP(c)
      • R(a);N_GUARD::P(D)
      • R(a);N_GUARD::QAB(A)
      • S(i);SBLOCK::S(F)
      • P(h);S_CUTB(e)::S(F),XP(c)
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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).