MESON Chess Problem Database

Problem Display
PID: 206730 (1Qn2K2/3k4/2N5/3P4/8/8/8/8 w - - 0 1)

Schonberger, Tibor

Magyar Sakkvilag, 1925

1Qn2K2/3k4/2N5/3P4/8/8/8/8

#2

4 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Se5#
      • 2.Qd8#
    • 1...Sd6
      • 2.Se5#
      • 2.Qd8#
    • 1...Sa7
      • 2.Se5#
      • 2.Qd8#
    • 1...Se7
      • 2.Se5#
      • 2.Qd8#
  • Tries
    • 1.Kf7?
      • 1...Sb6
        • 2.Se5#
        • 2.Qd8#
      • 1...Sa7
        • 2.Se5#
        • 2.Qd8#
      • 1...Se7
        • 2.Se5#
        • 2.Qd8#
      • 1...Sd6+!
    • 1.Kg8?
      • 1...Ke8
        • 2.Qxc8#
      • 1...Sb6
        • 2.Qd8#
      • 1...Sd6
        • 2.Qd8#
      • 1...Sa7
        • 2.Qd8#
      • 1...Se7+!
  • Keys
    • 1.Kg7!
      • 1...Ke8
        • 2.Qxc8#
      • 1...Sb6
        • 2.Qd8#
      • 1...Sd6
        • 2.Qd8#
      • 1...Sa7
        • 2.Qd8#
      • 1...Se7
        • 2.Se5#
        • 2.Qd8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Refutation
        • S(b);CHECK
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);P_SPINS(b),S_FLIGHT::QAR2(C),XS(b)
        • S(b);OGATE::QAR1(C)
        • S(b);OGATE,SBLOCK::QAR1(C)
      • Refutation
        • S(b);CHECK
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(a);P_SPINS(b),S_FLIGHT::QAR2(C),XS(b)
      • S(b);OGATE::QAR1(C)
      • S(b);OGATE,SBLOCK::QAR1(C)
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).