MESON Chess Problem Database

Problem Display
PID: 173990 (8/r4pP1/p2pp3/N2knnR1/KP4p1/2P5/4Qq2/8 w - - 0 1)

Bottacchi, Antonio

L'Illustrazione Italiana, 1920

(First published on Sun Jun 20 1920)

8/r4pP1/p2pp3/N2knnR1/KP4p1/2P5/4Qq2/8

#2

7 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.Qd3#
    • 1...Sg3
      • 2.Qc4#
    • 1...Sd4
      • 2.c4#
    • 1...Sh4
      • 2.Qc4#
    • 1...Sh6
      • 2.Qc4#
    • 1...Se7
      • 2.Qc4#
    • 1...Sxg7
      • 2.Qc4#
  • Keys
    • 1.g8S!
      • threat
        • 2.Sf6#
      • 1...Se3
        • 2.Qd3#
      • 1...Sd7
        • 2.Se7#
      • 1...Sg3
        • 2.Qc4#
      • 1...Sd4
        • 2.c4#
      • 1...Sh4
        • 2.Qc4#
      • 1...Sh6
        • 2.Qc4#
      • 1...Se7
        • 2.Qc4#
      • 1...Sg7
        • 2.Qc4#
      • 1...f6
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(e);N_GUARD,P_SPINS(d),S_CUTQ(a)::QAR2(A)
    • S(e);P_SPINS(d)::QAB1(A)
    • S(e);P_SPINS(d),SBLOCK::P(B)
    • S(e);P_SPINS(d),XP(G)::QAB1(A)
  • Actual
    • P(G);
    • Threat
      • S(G)
    • Vars
      • S(e);N_GUARD,P_SPINS(d),S_CUTQ(a)::QAR2(A)
      • S(d);P_SPINS(e),S_CUTR(i)::S(G)
      • S(e);P_SPINS(d)::QAB1(A)
      • S(e);P_SPINS(d),SBLOCK::P(B)
      • P(j);::S(G),XP(j)
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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).