MESON Chess Problem Database

Problem Display
PID: 187974 (7K/3p4/3N4/2p1kP2/1P6/2P5/7P/3Q4 w - - 0 1)

Kutfalvy, Antal

Pesti Naplo, 1910

7K/3p4/3N4/2p1kP2/1P6/2P5/7P/3Q4

#2

7 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...cxb4
      • 2.Qd4#
    • 1...c4
      • 2.Qd4#
  • Tries
    • 1.Kg7?
      • 1...cxb4
        • 2.Qd4#
      • 1...c4
        • 2.Qd4#
      • 1...Kf4!
    • 1.Qd2?
      • 1...cxb4
        • 2.Qd4#
      • 1...c4
        • 2.Qd4#
      • 1...Kf6!
    • 1.Qd3?
      • 1...Kf4
        • 2.Qg3#
      • 1...cxb4
        • 2.Qd4#
      • 1...c4
        • 2.Qd4#
      • 1...Kf6!
  • Keys
    • 1.Qg1!
      • 1...Kf4
        • 2.Qg3#
      • 1...Kd5
        • 2.Qxc5#
      • 1...Kxd6
        • 2.Qxc5#
      • 1...Kf6
        • 2.Qg7#
      • 1...cxb4
        • 2.Qd4#
      • 1...c4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD,XP(D)::QAB1(A)
    • P(a);N_GUARD::QAB1(A)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Vars
        • P(a);N_GUARD,XP(D)::QAB1(A)
        • P(a);N_GUARD::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(a);N_GUARD,XP(D)::QAB1(A)
        • P(a);N_GUARD::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(a);N_GUARD,XP(D)::QAB1(A)
        • P(a);N_GUARD::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);P-FLIGHT::QAR1(A),XP(a)
      • K(b);S_FLIGHT,XS(F)::QAB1(A),XP(a)
      • P(a);N_GUARD,XP(D)::QAB1(A)
      • P(a);N_GUARD::QAB1(A)
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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).