MESON Chess Problem Database

Problem Display
PID: 170900 (1b1B1N2/4rnp1/RNq3P1/3pk3/1Pp3P1/5pP1/2Q3R1/2K4B w - - 0 1)

Szoghy, Jozsef

2nd Prize, Problemisten, 1947

1b1B1N2/4rnp1/RNq3P1/3pk3/1Pp3P1/5pP1/2Q3R1/2K4B

#2

12 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Qf5#
  • Tries
    • 1.Re2+?
      • 1...Kd4
        • 2.Qd2#
      • 1...Kd6
        • 2.Sc8#
      • 1...Kf6
        • 2.Sh7#
        • 2.Bxe7#
        • 2.Qf5#
      • 1...fxe2!
    • 1.Qf5+?
      • 1...Kd6
        • 2.Sc8#
      • 1...Kd4!
    • 1.Qc3+?
      • 1...Ke4
        • 2.Re2#
      • 1...Kd6
        • 2.Sc8#
      • 1...d4!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qf4#
      • 1...Ke4
        • 2.Re2#
      • 1...Kd6
        • 2.Sxc4#
      • 1...Kf6
        • 2.Sbd7#
      • 1...Qf6
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINR(f),S_FLIGHT::QAR1(C)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR2(C)
        • K(d);S_FLIGHT::S(I)
      • Refutation
        • P(a);XR(D)
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);S_FLIGHT::S(I)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);P-FLIGHT::R(D)
        • K(d);S_FLIGHT::S(I)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(d);P-FLIGHT::R(D)
      • K(d);P_SPINP(c),S_FLIGHT::S(I),XP(b)
      • K(d);P_SPINR(f),S_FLIGHT::S(I)
      • Q(e);N_GUARD,SBLOCK::QAR1(C),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).