MESON Chess Problem Database

Problem Display
PID: 124362 (B6B/K1Q2pr1/b2pp2b/1p2kP1N/2p2R2/8/8/8 w - - 0 1)

Neukomm, Gyula (Julius) R

Szerkesztesi verseny, 1952

B6B/K1Q2pr1/b2pp2b/1p2kP1N/2p2R2/8/8/8

#2

7 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Qxc3#
    • 1...exf5
      • 2.Qe7#
  • Tries
    • 1.Bxg7+?
      • 1...f6
        • 2.Bxf6#
      • 1...Bxg7!
    • 1.Qc5+?
      • 1...d5
        • 2.Qc7#
      • 1...dxc5!
  • Keys
    • 1.Qxf7!
      • threat
        • 2.Re4#
      • 1...Bxf4
        • 2.Bxg7#
      • 1...exf5
        • 2.Qe7#
      • 1...Bb7
        • 2.Qxe6#
      • 1...d5
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(a);OGATE::QAB(E),XP(a)
    • P(f);OGATEB,XP(B)::QAR2(E)
  • Tries
    • Try
      • B(G);CHECK,XR(i)
      • Vars
        • P(h);::B(G),XP(h)
      • Refutation
        • B(g);XB(G)
    • Try
      • Q(E);CHECK,N_PINP(e)
      • Vars
        • P(e);OGATEB,P_SPINP(e)::QAB(E)
      • Refutation
        • P(e);XQ(E)
  • Actual
    • Q(E);N_PINP(e),P_SPINQ(E),XP(h)
    • Threat
      • R1(A)
    • Vars
      • B(g);N_GUARD,XR(A)::B(G),XR(i)
      • P(f);XP(B)::QAR2(E)
      • B(d);N_PINQ(E)::QAR1(E),XP(f)
      • P(e);::QAB(E)
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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).