MESON Chess Problem Database

Problem Display
PID: 80859 (kq1R1Q2/1p6/2P5/8/8/K7/8/8 w - - 0 1)

Azhusin, Aleksandr Aleksandrovich

HM., 64 Shakhmatnoe obozrenie, 1973

kq1R1Q2/1p6/2P5/8/8/K7/8/8

#2

4 + 3

145 StrateGems 2008
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qa5#
        • 2.Qa4#
        • 2.Qxb7#
      • 1...Ka7
        • 2.Qa5#
      • 1...Qxd8
        • 2.Qxb7#
      • 1...bxc6
        • 2.Qxb8#
      • 1...Qc8
        • 2.Qxb7#
      • 1...b5
        • 2.Qa5#
      • 1...b6
        • 2.Qa4#

This anticipates 171019(2017)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(D);
    • Threat
      • DUALS(3)
    • Vars
      • K(b);N_SPINQ(c),P-FLIGHT::QAR2(D)
      • Q(c);N_SPINQ(c),XR(C)::QAB1(D),XP(a)
      • P(a);OGATE,XP(B)::QAR1(D),XQ(c)
      • Q(c);::QAB1(D),XP(a)
      • P(a);::QAR(D)
HTML5 logo

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).