MESON Chess Problem Database

Problem Display
PID: 92017 (8/4p3/1p6/1N2k1Kp/2Q1p3/8/7N/8 w - - 0 1)

Roza, Claude

Schach, 2000

8/4p3/1p6/1N2k1Kp/2Q1p3/8/7N/8

#2

4 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Sf3#
    • 1...h4
      • 2.Sg4#
    • 1...e6
      • 2.Qd4#
  • Tries
    • 1.Qc5+?
      • 1...Ke6
        • 2.Qf5#
      • 1...bxc5!
  • Keys
    • 1.Qc6!
      • 1...e6
        • 2.Qd6#
      • 1...e3
        • 2.Sf3#
      • 1...h4
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::S(A)
    • P(c);N_GUARD::S(A)
    • P(e);SBLOCK::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • P(d);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • P(e);N_GUARD::QAB1(B)
      • P(a);N_GUARD::S(A)
      • P(c);N_GUARD::S(A)
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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).