MESON Chess Problem Database

Problem Display
PID: 231622 (8/2p1p3/2Pk4/1K3Q2/1P6/8/8/8 w - - 0 1)

Schneider, Johann Bernhard Michael

Frankisches Volksblatt, 1927

8/2p1p3/2Pk4/1K3Q2/1P6/8/8/8

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qd7#
    • 1...e6
      • 2.Qc5#
  • Tries
    • 1.Ka4?
      • 1...e5
        • 2.Qd7#
      • 1...e6
        • 2.Qc5#
      • 1...Kxc6!
    • 1.Kc4?
      • threat
        • 2.Qd5#
      • 1...e5
        • 2.Qd7#
        • 2.Qf6#
      • 1...e6
        • 2.Qc5#
      • 1...Kxc6!
    • 1.Ka5?
      • 1...e5
        • 2.Qd7#
      • 1...e6
        • 2.Qc5#
      • 1...Kxc6!
  • Keys
    • 1.Ka6!
      • 1...Kxc6
        • 2.Qe6#
      • 1...e5
        • 2.Qd7#
      • 1...e6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR1(C)
    • P(c);SBLOCK::QAB1(C)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(c);SBLOCK::QAR1(C)
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • K(B);S_FLIGHT
      • Threat
        • QAR1(C)
      • Vars
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(c);SBLOCK::QAR1(C)
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • K(a);P-FLIGHT,XP(D)::QAR2(C)
      • P(c);SBLOCK::QAR1(C)
      • P(c);SBLOCK::QAB1(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).