MESON Chess Problem Database

Problem Display
PID: 172529 (8/5K2/3p4/Q5p1/4k1B1/8/5P2/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2002

8/5K2/3p4/Q5p1/4k1B1/8/5P2/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qf5#
  • Tries
    • 1.Qd2?
      • 1...d5
        • 2.Qe3#
      • 1...Ke5!
    • 1.Qd5+?
      • 1...Kf4
        • 2.Qd4#
        • 2.Qf5#
      • 1...Kxd5!
  • Keys
    • 1.Qc3!
      • 1...Kf4
        • 2.Qd4#
      • 1...Kd5
        • 2.Bf3#
      • 1...d5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • Q(C);
      • Vars
        • P(c);SBLOCK::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • K(a);S_FLIGHT::B(B)
      • P(c);SBLOCK::QAR1(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).