MESON Chess Problem Database

Problem Display
PID: 97432 (2BR2KB/2P5/2r3p1/nQ1N2n1/4k3/Rb2N1P1/6P1/8 w - - 0 1)

Bacher, Roberto

Problemas, 1961

2BR2KB/2P5/2r3p1/nQ1N2n1/4k3/Rb2N1P1/6P1/8

#2

11 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Qd3#
    • 1...Ba2
      • 2.Qd3#
    • 1...Ba4
      • 2.Qd3#
    • 1...Bxd5+
      • 2.Qxd5#
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qe2#
      • 1...Bxd5+
        • 2.Qxd5#
      • 1...Rc4
        • 2.Sf6#
      • 1...Re6
        • 2.Sc3#
      • 1...Sc4
        • 2.Sc3#
      • 1...Se6
        • 2.Sf6#
      • 1...Rc2
        • 2.Sd6#
      • 1...Rc3
        • 2.Sd6#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Bd1
        • 2.Re3#
        • 2.Qd3#
      • 1...Bc4
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 3
  • Sets
    • B(a);N_PINS(F)::QAB1(E)
    • B(a);::QAB1(E)
    • B(a);CHECK,OGATE,XS(F)::QAB1(E),XB(a)
  • Actual
    • S(C);
    • Threat
      • QAR2(E)
    • Vars
      • B(a);CHECK,OGATE,XS(F)::QAB1(E),XB(a)
      • R(e);N_PINS(F)::S(F)
      • S(c);N_PINS(F)::S(F)
      • S(d);N_PINS(F)::S(F)
      • R(e);N_GUARD::S(C)
      • R(e);N_GUARD::S(C),XR(e)
      • B(a);OGATE::R1(B)
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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).