MESON Chess Problem Database

Problem Display
PID: 93581 (8/8/5p2/4kp2/1BPNp3/4Q3/7K/8 w - - 0 1)

Wurzburg, Otto

Humoristicke listy, 1898

8/8/5p2/4kp2/1BPNp3/4Q3/7K/8

#2

5 + 4

6490 yacpdb 2009
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qc1?
      • 1...Kxd4
        • 2.Qc3#
      • 1...e3
        • 2.Qxe3#
      • 1...f4!
    • 1.Qg1?
      • 1...Kf4
        • 2.Bd6#
        • 2.Qg3#
      • 1...e3
        • 2.Qxe3#
      • 1...f4!
    • 1.Qd2?
      • 1...e3
        • 2.Qxe3#
      • 1...f4!
    • 1.Qf2?
      • 1...e3
        • 2.Qxe3#
      • 1...f4!
    • 1.Qe1?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Qg3#
      • 1...e3
        • 2.Qxe3#
      • 1...f4!
    • 1.Qa3?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Qg3#
      • 1...e3
        • 2.Qxe3#
      • 1...f4!
    • 1.Qb3?
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Qg3#
      • 1...e3
        • 2.Qxe3#
      • 1...f4!
    • 1.Qc3?
      • 1...Kf4
        • 2.Qg3#
      • 1...e3
        • 2.Qxe3#
      • 1...f4!
    • 1.Qg3+?
      • 1...Kxd4
        • 2.Qc3#
      • 1...f4!
  • Keys
    • 1.Qh3!
      • 1...Kxd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Qg3#
      • 1...e3
        • 2.Qxe3#
      • 1...f4
        • 2.Sc6#

This anticipates 9870(1960)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(B)
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Vars
        • K(b);N_SPINP(a),OGATEB,S_FLIGHT,XS(E)::QAB1(B)
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(B)
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(B)
        • K(b);S_FLIGHT::QAB1(B)
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(B)
        • K(b);S_FLIGHT::QAB1(B)
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
        • P(a);OGATEB::QAR2(B),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(B);CHECK,N_PINP(a)
      • Vars
        • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(B)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • Q(B);N_PINP(a)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(B)
      • K(b);S_FLIGHT::QAB1(B)
      • P(a);OGATEB::QAR2(B),XP(a)
      • P(c);SBLOCK::S(E)
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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).