MESON Chess Problem Database

Problem Display
PID: 174035 (2B1n3/8/2R2p2/4k3/2P1p3/4Q3/4n2b/K7 w - - 0 1)

Bottacchi, Antonio

3rd HM., L'Italia Scacchistica, 1917

2B1n3/8/2R2p2/4k3/2P1p3/4Q3/4n2b/K7

#2

5 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Qc5#
    • 1...Sf4
      • 2.Qc3#
    • 1...Sd6
      • 2.Rc5#
    • 1...f5
      • 2.Re6#
  • Keys
    • 1.Qf2!
      • threat
        • 2.Re6#
      • 1...e3
        • 2.Qxe3#
      • 1...Bf4
        • 2.Qc5#
      • 1...Sd4
        • 2.Qxh2#
      • 1...Sf4
        • 2.Qb2#
      • 1...Sd6
        • 2.Rc5#
      • 1...Sc7
        • 2.Qxf6#
      • 1...Sg7
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(b);SBLOCK::QAR2(B)
    • S(a);N_GUARD,SBLOCK::QAB(B)
    • S(f);SBLOCK::R(D)
    • P(e);SBLOCK::R1(D)
  • Actual
    • Q(B);N_PINP(c)
    • Threat
      • R1(D)
    • Vars
      • P(c);OGATEB::QAR2(B),XP(c)
      • B(b);SBLOCK::QAR2(B)
      • S(a);N_GUARD,SBLOCK::QAB(B),XB(b)
      • S(a);OGATE,SBLOCK::QAB(B)
      • S(f);SBLOCK::R(D)
      • S(f);N_GUARD::QAB1(B),XP(e)
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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).