MESON Chess Problem Database

Problem Display
PID: 36038 (1B3N2/7K/Ppkn4/1p4R1/1p2N3/6n1/1rbP3Q/2R4B w - - 0 1)

Cristoffanini, Guido

1st HM., BCF 007. Ty., 1931-1932

1B3N2/7K/Ppkn4/1p4R1/1p2N3/6n1/1rbP3Q/2R4B

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qxd6#
    • 1...Sxh1
      • 2.Qxd6#
    • 1...Se2
      • 2.Qxd6#
    • 1...Sgxe4
      • 2.Qxd6#
    • 1...Sh5
      • 2.Qxd6#
    • 1...Sdxe4
      • 2.Qh6#
  • Tries
    • 1.Rxc2+?
      • 1...Sc4
        • 2.Sxg3#
        • 2.Qh6#
      • 1...Rxc2!
  • Keys
    • 1.d4!
      • threat
        • 2.d5#
      • 1...Sgxe4
        • 2.Qxd6#
      • 1...Sdxe4
        • 2.Qh6#
      • 1...Sgf5
        • 2.Sxd6#
      • 1...Sdf5
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(c);OGATE::QAR1(D),XS(h)
    • S(c);OGATE,XB(B)::QAR1(D),XS(h)
    • S(c);OGATE,P_SPINS(c),XS(E)::QAR1(D),XS(h)
    • S(h);OGATEB,P_SPINS(h),XS(E)::QAR(D)
  • Tries
    • Try
      • R(A);CHECK,N_SPINS(E),XB(b)
      • Refutation
        • R(a);XR(A)
  • Actual
    • P(C);
    • Threat
      • P(C)
    • Vars
      • S(c);OGATE,P_SPINS(c),XS(E)::QAR1(D),XS(h)
      • S(h);OGATEB,P_SPINS(h),XS(E)::QAR(D)
      • S(c);N_PINS(E)::B(B)+S(E),XS(h)
      • S(h);N_PINS(E)::B(B)+S(E),XS(c)
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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).