MESON Chess Problem Database

Problem Display
PID: 203486 (8/5K2/3p4/2P1kp2/8/3P4/3B2Q1/8 w - - 0 1)

Michlo, Jozsef

Nepszava, 1924

8/5K2/3p4/2P1kp2/8/3P4/3B2Q1/8

#2

5 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qe4#
    • 1...d5
      • 2.Qg7#
  • Tries
    • 1.Be3?
      • threat
        • 2.d4#
      • 1...f4
        • 2.Qe4#
        • 2.Qg5#
      • 1...dxc5!
    • 1.Qh2+?
      • 1...Kd4
        • 2.Qxd6#
      • 1...Kd5
        • 2.Qxd6#
      • 1...f4!
    • 1.Qg3+?
      • 1...Kd4
        • 2.Qxd6#
      • 1...Kd5
        • 2.Qxd6#
      • 1...f4!
    • 1.Qg6?
      • threat
        • 2.Qxd6#
      • 1...Kd4
        • 2.Qxd6#
      • 1...Kd5
        • 2.Qxd6#
      • 1...f4
        • 2.Qe4#
      • 1...d5
        • 2.Qf6#
        • 2.Qg7#
      • 1...dxc5!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qxd6#
      • 1...Kd4
        • 2.Qxd6#
      • 1...dxc5
        • 2.Qxc5#
      • 1...f4
        • 2.Qe4#
      • 1...d5
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::QAR1(B)
    • P(c);SBLOCK::QAB(B)
  • Tries
    • Try
      • B(A);
      • Threat
        • P(C)
      • Refutation
        • P(c);XP(D)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(B),XP(c)
        • K(a);OGATE,P-FLIGHT::QAR1(B),XP(c)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR2(B),XP(c)
        • K(a);OGATE,P-FLIGHT::QAR1(B),XP(c)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(c)
      • Vars
        • K(a);S_FLIGHT::QAR2(B),XP(c)
        • K(a);P-FLIGHT::QAR1(B),XP(c)
        • P(b);OGATE::QAR1(B)
      • Refutation
        • P(c);XP(D)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XP(c)
    • Vars
      • K(a);S_FLIGHT::QAR2(B),XP(c)
      • P(c);OGATE,XP(D)::QAR2(B),XP(c)
      • P(b);N_GUARD::QAR1(B)
      • P(c);OGATE,SBLOCK::QAB1(B)
HTML5 logo

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).