MESON Chess Problem Database

Problem Display
PID: 108288 (K3N3/1p6/1Nk2p2/n7/8/8/2q2B2/1RQ1n3 w - - 0 1)

Fleck, Ferenc

Panorama, 1952

K3N3/1p6/1Nk2p2/n7/8/8/2q2B2/1RQ1n3

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Qxc5#
    • 1...Sd3
      • 2.Qh1#
    • 1...f5
      • 2.Qh6#
  • Tries
    • 1.Qxc2+?
      • 1...Sc4
        • 2.Qa4#
        • 2.Qe4#
        • 2.Qxc4#
      • 1...Sxc2!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qd6#
      • 1...Qxb1
        • 2.Qc5#
      • 1...Qb3
        • 2.Qc5#
      • 1...Qb2
        • 2.Qc5#
      • 1...Sb3
        • 2.Qa4#
      • 1...Qd1
        • 2.Qc5#
      • 1...Qd3
        • 2.Qc5#
      • 1...Qd2
        • 2.Qc5#
        • 2.Qa4#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Sc4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • Q(b);OGATE::QAR1(B),XQ(b)
    • S(a);OGATE::QAB(B)
    • P(e);OGATEB::QAR(B)
  • Tries
    • Try
      • Q(B);CHECK,XQ(b)
      • Refutation
        • S(a);XQ(B)
  • Actual
    • Q(B);N_PINQ(b)
    • Threat
      • QAR1(B)
    • Vars
      • Q(b);N_GUARD,XR(A)::QAR1(B)
      • Q(b);N_GUARD::QAR1(B)
      • S(c);S_CUTQ(b)::QAB(B)
      • Q(b);N_GUARD::QAR1(B),XQ(b)
      • S(c);S_CUTQ(b)::QAR1(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).