MESON Chess Problem Database

Problem Display
PID: 114886 (1R6/1r2p3/2p5/2k1K3/pRN5/P1n4n/3pp3/2B1QB2 w - - 0 1)

Armeni, Alberto

Canadian Chess Chat, 1982

1R6/1r2p3/2p5/2k1K3/pRN5/P1n4n/3pp3/2B1QB2

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sg1
      • 2.Qf2#
    • 1...Sf2
      • 2.Qxf2#
    • 1...Sf4
      • 2.Qf2#
    • 1...Sg5
      • 2.Qf2#
    • 1...dxe1Q
      • 2.Be3#
    • 1...dxe1S
      • 2.Be3#
    • 1...dxe1B
      • 2.Be3#
    • 1...dxe1R
      • 2.Be3#
    • 1...d1B
      • 2.Be3#
    • 1...exf1Q
      • 2.Qe3#
    • 1...exf1B
      • 2.Qe3#
    • 1...exf1R
      • 2.Qe3#
  • Keys
    • 1.Sb2!
      • threat
        • 2.Sd3#
      • 1...Rxb4
        • 2.axb4#
      • 1...dxc1S
        • 2.Qxc3#
      • 1...dxe1S
        • 2.Be3#
      • 1...exf1Q
        • 2.Qe3#
      • 1...exf1B
        • 2.Qe3#
      • 1...Sb5
        • 2.Sxa4#
      • 1...d1Q
        • 2.Qxc3#
      • 1...d1R
        • 2.Qxc3#
      • 1...Rd7
        • 2.Rc4#
      • 1...Sf2
        • 2.Qxf2#
      • 1...Sf4
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 7
  • Sets
    • S(d);N_GUARD::QAB(B)
    • S(d);N_GUARD::QAB(B),XS(d)
    • P(a);OGATE,XQ(B)::B(A)
    • P(a);OGATE::B(A)
    • P(b);OGATE,XB(C)::QAB(B)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • R(h);OGATE,XR(E)::P(D),XR(h)
      • P(a);OGATE,XB(A)::QAR2(B),XS(c)
      • P(a);OGATE,XQ(B)::B(A)
      • P(b);OGATE,XB(C)::QAB(B)
      • S(c);N_GUARD::S(F),XP(e)
      • P(a);OGATE::QAR2(B),XS(c)
      • R(h);::R1(E)
      • S(d);N_GUARD::QAB(B),XS(d)
      • S(d);N_GUARD::QAB(B)
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).