MESON Chess Problem Database

Problem Display
PID: 172271 (8/qPQ5/k7/8/K1P5/8/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Twoja sudba, 1996

8/qPQ5/k7/8/K1P5/8/8/8

#2

4 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.b8S#
    • 1...Qf2
      • 2.b8S#
    • 1...Qe3
      • 2.b8S#
    • 1...Qd4
      • 2.b8S#
    • 1...Qc5
      • 2.b8S#
    • 1...Qxb7
      • 2.Qa5#
    • 1...Qa8
      • 2.bxa8Q#
      • 2.bxa8R#
  • Keys
    • 1.c5!
      • 1...Qxc5
        • 2.b8S#
      • 1...Qxb7
        • 2.Qa5#
      • 1...Qb6
        • 2.Qxb6#
      • 1...Qb8
        • 2.Qb6#
      • 1...Qa8
        • 2.Qb6#
        • 2.bxa8Q#
        • 2.bxa8R#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(b);N_GUARD::P=S
    • Q(b);N_GUARD,P_PINP(B)::P=S
    • Q(b);SBLOCK,XP(C)::QAR1(D)
    • Q(b);OGATE::PXQ(b)=Q
  • Actual
    • P(B);
    • Vars
      • Q(b);N_GUARD,XP(B)::P=S
      • Q(b);SBLOCK,XP(C)::QAR1(D)
      • Q(b);N_GUARD::QAR1(D),XQ(b)
      • Q(b);N_GUARD::QAR1(D)
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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).