MESON Chess Problem Database

Problem Display
PID: 240600 (1B6/3Kp2p/8/3P4/Q2Pk2N/2Ppp3/B7/8 w - - 0 1)

Hoffmann, Fritz

Thema Danicum, 1984

1B6/3Kp2p/8/3P4/Q2Pk2N/2Ppp3/B7/8

#2

8 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Qc2#
    • 1...e5
      • 2.dxe5#
  • Tries
    • 1.Qd1?
      • threat
        • 2.Qf3#
        • 2.Qg4#
        • 2.Qh1#
      • 1...d2
        • 2.Qc2#
        • 2.Qb1#
      • 1...e5
        • 2.Qf3#
        • 2.Qg4#
      • 1...h5
        • 2.Qf3#
        • 2.Qh1#
      • 1...e2!
    • 1.Qb4?
      • threat
        • 2.Qxe7#
      • 1...d2
        • 2.Qb1#
      • 1...e5
        • 2.dxe5#
      • 1...e6!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qe6#
      • 1...d2
        • 2.Bb1#
      • 1...e5
        • 2.dxe5 ep#
      • 1...e6
        • 2.Qxe6#
        • 2.dxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAB(C)
    • P(d);OGATE::QAR(C)+P(D),XP(d)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Threat
        • QAR(C),XP(d)
      • Vars
        • P(a);OGATEB::QAB(C)
        • P(d);OGATE::QAR(C)+P(D),XP(d)
      • Refutation
        • P(d);
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • P(a);OGATEB::B(A)
      • P(d);OGATE::QAB(C)+P(F),XP(d),EP
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).