MESON Chess Problem Database

Problem Display
PID: 268444 (4r3/p2Q4/2p2p2/K3k3/b1P1N3/4Bpn1/5nNb/5rq1 w - - 0 1)

Chicco, Adriano

7th HM., James MT (Chess Correspondent), 1947

4r3/p2Q4/2p2p2/K3k3/b1P1N3/4Bpn1/5nNb/5rq1

#2

6 + 12

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Sfxe4
      • 2.Bf4#
    • 1...Sgxe4
      • 2.Bd4#
    • 1...c5
      • 2.Qd5#
    • 1...f5
      • 2.Qxe8#
  • Keys
    • 1.Sh4!
      • threat
        • 2.Qxe8#
      • 1...Kxe4
        • 2.Qd4#
      • 1...Sfxe4
        • 2.Sg6#
      • 1...Sgxe4
        • 2.Sxf3#
      • 1...Re6
        • 2.Qd4#
      • 1...Re7
        • 2.Qxe7#
      • 1...Ra8
        • 2.Qe7#
      • 1...Rb8
        • 2.Qe7#
      • 1...Rc8
        • 2.Qe7#
      • 1...Rd8
        • 2.Qe7#
      • 1...Rf8
        • 2.Qe7#
      • 1...Rg8
        • 2.Qe7#
      • 1...Rh8
        • 2.Qe7#
      • 1...Sf5
        • 2.Qxf5#
      • 1...c5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 11
    • REMOVED MATES = 1
  • Sets
    • S(c);SBLOCK,XS(D)::B(B)
    • S(f);SBLOCK,XS(D)::B(B)
    • P(i);N_GUARD::QAR1(F)
    • P(j);SBLOCK::QAR(F),XR(l)
  • Actual
    • S(A);
    • Threat
      • QAR(F),XR(l)
    • Vars
      • K(h);N_GUARD,P-FLIGHT,XS(D)::QAR1(F)
      • S(c);SBLOCK,XS(D)::S(A)
      • S(f);SBLOCK,XS(D)::S(A),XP(e)
      • R(l);SBLOCK::QAB1(F)
      • R(l);N_GUARD::QAR2(F),XR(l)
      • R(l);N_GUARD::QAR2(F)
      • S(f);N_GUARD::QAR1(F),XS(f)
      • P(i);N_GUARD::QAR1(F)
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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).