MESON Chess Problem Database

Problem Display
PID: 172342 (5Q2/8/5n1R/6kn/5N2/5K2/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Vecherni Krasnodar, 1996

5Q2/8/5n1R/6kn/5N2/5K2/8/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kh4
      • 2.Qxf6#
    • 1...Kf5
      • 2.Rxh5#
    • 1...Sg3
      • 2.Qxf6#
    • 1...Sxf4
      • 2.Qxf6#
    • 1...Sg7
      • 2.Qxf6#
    • 1...Se4
      • 2.Rxh5#
    • 1...Sg4
      • 2.Rxh5#
    • 1...Sd5
      • 2.Rxh5#
    • 1...Sd7
      • 2.Rxh5#
    • 1...Sh7
      • 2.Rxh5#
    • 1...Se8
      • 2.Rxh5#
    • 1...Sg8
      • 2.Rxh5#
  • Keys
    • 1.Qf7!
      • 1...Kh4
        • 2.Qxf6#
      • 1...Kf5
        • 2.Rxh5#
      • 1...Kxh6
        • 2.Qg6#
      • 1...Sxf4
        • 2.Qxf6#
      • 1...Sg3
        • 2.Qg6#
        • 2.Qxf6#
      • 1...Sg7
        • 2.Qg6#
        • 2.Qxf6#
      • 1...Se4
        • 2.Rxh5#
        • 2.Qxh5#
      • 1...Sg4
        • 2.Rxh5#
        • 2.Qxh5#
      • 1...Sd5
        • 2.Rxh5#
        • 2.Qxh5#
      • 1...Sd7
        • 2.Rxh5#
        • 2.Qxh5#
      • 1...Sh7
        • 2.Rxh5#
        • 2.Qxh5#
      • 1...Se8
        • 2.Rxh5#
        • 2.Qxh5#
      • 1...Sg8
        • 2.Rxh5#
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • K(a);P_SPINS(b),S_FLIGHT::QAB(D),XS(c)
    • K(a);P-FLIGHT,P_SPINS(c)::R(C),XS(b)
    • S(b);N_GUARD::QAB1(D),XS(c)
    • S(b);N_GUARD,XS(B)::QAB1(D),XS(c)
    • S(c);N_GUARD::R1(C),XS(b)
  • Actual
    • Q(D);
    • Vars
      • K(a);P_SPINS(b),S_FLIGHT::QAB(D),XS(c)
      • K(a);P-FLIGHT,P_SPINS(c)::R(C),XS(b)
      • K(a);S_FLIGHT,XR(C)::QAR1(D)
      • S(b);N_GUARD,XS(B)::QAB1(D),XS(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).