MESON Chess Problem Database

Problem Display
PID: 120686 (8/4p3/p2pP3/bk1B4/3QN3/8/8/RK6 w - - 0 1)

Neukomm, Gyula (Julius) R

Express Wieczorny, 1954

8/4p3/p2pP3/bk1B4/3QN3/8/8/RK6

#2

6 + 5

6490 yacpdb 2009
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Sxc3#
    • 1...Bb6
      • 2.Sc3#
      • 2.Qb2#
      • 2.Qa4#
      • 2.Qc4#
    • 1...Bc7
      • 2.Sc3#
      • 2.Qb2#
    • 1...Bd8
      • 2.Sc3#
      • 2.Qb2#
  • Tries
    • 1.Bc4+?
      • 1...Kb4
        • 2.Qc3#
      • 1...Kc6!
    • 1.Qd3+?
      • 1...Kb4
        • 2.Qc4#
        • 2.Qb3#
      • 1...Kb6!
  • Keys
    • 1.Qh8!
      • 1...Kb4
        • 2.Qb2#
      • 1...Kb6
        • 2.Qb8#
      • 1...Be1
        • 2.Qb8#
      • 1...Bd2
        • 2.Qb8#
      • 1...Bc3
        • 2.Qb8#
      • 1...Bb4
        • 2.Qb8#
      • 1...Bb6
        • 2.Qb2#
      • 1...Bc7
        • 2.Qb2#
      • 1...Bd8
        • 2.Qb2#

Anticipated by 28900(1873)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::S(D),XB(a)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT::QAR2(C)
      • B(a);N_GUARD::QAR(C)
      • B(a);N_GUARD,SBLOCK::QAR(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).