MESON Chess Problem Database

Problem Display
PID: 231648 (6Q1/2p1N2N/4pp2/2B1k1p1/4p1rb/6p1/2B3K1/8 w - - 0 1)

Fleischer, Gyula

Nepszava, 1927

6Q1/2p1N2N/4pp2/2B1k1p1/4p1rb/6p1/2B3K1/8

#2

6 + 9

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...c6
      • 2.Qb8#
  • Tries
    • 1.Sf8?
      • threat
        • 2.Sfg6#
      • 1...Kf4
        • 2.Sfg6#
      • 1...f5!
    • 1.Qxe6+?
      • 1...Kf4
        • 2.Sd5#
        • 2.Sg6#
        • 2.Qf5#
        • 2.Qxe4#
        • 2.Qxf6#
      • 1...Kxe6!
    • 1.Qg7?
      • threat
        • 2.Qxf6#
      • 1...Kf4
        • 2.Qxf6#
      • 1...Rf4!
    • 1.Qc8?
      • threat
        • 2.Qxc7#
      • 1...c6
        • 2.Qc7#
        • 2.Qb8#
      • 1...Kf4!
    • 1.Qd8?
      • threat
        • 2.Qxc7#
      • 1...c6
        • 2.Qc7#
        • 2.Qd6#
        • 2.Qb8#
      • 1...Kf4!
    • 1.Qh8?
      • threat
        • 2.Qxf6#
      • 1...Kf4
        • 2.Qxf6#
      • 1...Rf4!
  • Keys
    • 1.Qa8!
      • 1...Kf4
        • 2.Qxe4#
      • 1...Rf4
        • 2.Qa1#
      • 1...e3
        • 2.Sg6#
      • 1...f5
        • 2.Sg6#
      • 1...c6
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(i);OGATEB::QAB(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • K(e);S_FLIGHT::S(E)
      • Refutation
        • P(h);
    • Try
      • Q(F);CHECK,XP(g)
      • Refutation
        • K(e);P-FLIGHT,XQ(F)
    • Try
      • Q(F);P_PINP(h)
      • Threat
        • QAB1(F),XP(h)
      • Vars
        • K(e);N_SPINP(h),S_FLIGHT::QAR2(F),XP(h)
      • Refutation
        • R(c);
    • Try
      • Q(F);
      • Threat
        • QAB(F),XP(i)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB(F),XP(i)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(F);P_PINP(h)
      • Threat
        • QAB1(F),XP(h)
      • Vars
        • K(e);N_SPINP(h),S_FLIGHT::QAR2(F),XP(h)
      • Refutation
        • R(c);
  • Actual
    • Q(F);
    • Vars
      • K(e);S_FLIGHT::QAR1(F),XP(b)
      • R(c);SBLOCK::QAB(F)
      • P(b);::S(D)
      • P(h);SBLOCK::S(D)
      • P(i);OGATEB::QAB(F)
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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).