MESON Chess Problem Database

Problem Display
PID: 263899 (n1nr1Nq1/8/2B5/KPkpQ3/6p1/pP2P3/5N2/3r3b w - - 0 1)

Brogi, Giuseppe

Il Problema, 1959

n1nr1Nq1/8/2B5/KPkpQ3/6p1/pP2P3/5N2/3r3b

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Sxe6#
    • 1...Qh7
      • 2.Se6#
    • 1...Qg5
      • 2.Se6#
    • 1...Qg7
      • 2.Se6#
    • 1...Qh8
      • 2.Se6#
    • 1...Ra1
      • 2.Sd3#
    • 1...Rb1
      • 2.Sd3#
    • 1...Rc1
      • 2.Sd3#
    • 1...Re1
      • 2.Sd3#
    • 1...Rf1
      • 2.Sd3#
    • 1...Rg1
      • 2.Sd3#
    • 1...Rd3
      • 2.Sxd3#
    • 1...Rd4
      • 2.exd4#
    • 1...Rd6
      • 2.Qc3#
    • 1...Rd7
      • 2.Sxd7#
    • 1...Re8
      • 2.Sd7#
    • 1...Be4
      • 2.Sxe4#
  • Keys
    • 1.Bxd5!
      • threat
        • 2.b4#
      • 1...Qxd5
        • 2.Se6#
      • 1...R1xd5
        • 2.Sd3#
      • 1...R8xd5
        • 2.Sd7#
      • 1...Bxd5
        • 2.Se4#
      • 1...Rb1
        • 2.Sd3#
      • 1...Rd4
        • 2.exd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 15
  • Sets
    • Q(j);N_GUARD::S(H),XQ(j)
    • Q(j);N_GUARD::S(H)
    • R(a);N_GUARD::S(A)
    • R(a);N_GUARD::S(A),XR(a)
    • R(a);OGATE::P(C),XR(a)
    • R(i);SBLOCK::QAR2(F)
    • R(i);N_GUARD::S(H),XR(i)
    • R(i);N_GUARD::S(H)
    • B(b);N_GUARD::S(A),XB(b)
  • Actual
    • B(G);XP(f)
    • Threat
      • P(B)
    • Vars
      • Q(j);N_GUARD,P_SPINQ(j),XB(G)::S(H)
      • R(a);N_GUARD,P_SPINR(a),XB(G)::S(A)
      • R(i);N_GUARD,P_SPINR(i),XB(G)::S(H)
      • B(b);N_GUARD,P_SPINB(b),XB(G)::S(A)
      • R(a);N_GUARD::S(A)
      • R(a);OGATE::P(C),XR(a)
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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).