MESON Chess Problem Database

Problem Display
PID: 11740 (8/8/p1p5/1k6/8/1P6/1K6/4B1Q1 w - - 0 1)

Marandiuk, Mikhail Nazarovich

3rd Prize, Platov MT, 1971

8/8/p1p5/1k6/8/1P6/1K6/4B1Q1

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Bb4?
      • threat
        • 2.Qc5#
      • 1...Kxb4
        • 2.Qb6#
      • 1...c5
        • 2.Qxc5#
      • 1...a5!
    • 1.Ba5?
      • threat
        • 2.Qb6#
      • 1...Kxa5
        • 2.Qc5#
      • 1...c5!
  • Keys
    • 1.Qa7!
      • 1...c5
        • 2.Qb7#
      • 1...a5
        • 2.Qxa5#

This anticipates 245453(2015)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT,XB(A)::QAR2(B)
        • P(c);::QAR1(B),XP(c)
      • Refutation
        • P(b);
    • Try
      • B(A);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT,XB(A)::QAR2(B)
      • Refutation
        • P(c);
  • Actual
    • Q(B);
    • Vars
      • P(c);SBLOCK::QAR2(B)
      • P(b);OGATE::QAR1(B),XP(b)
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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).