MESON Chess Problem Database

Problem Display
PID: 250059 (K5Q1/b1P4r/8/1p1RB1P1/1NknbRN1/Pp5r/1Ppnq3/5B2 w - - 0 1)

Cristoffanini, Guido

L'Avvenire d'Italia, 1927

K5Q1/b1P4r/8/1p1RB1P1/1NknbRN1/Pp5r/1Ppnq3/5B2

#2

12 + 11

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Se3#
    • 1...Rh2
      • 2.Se3#
    • 1...Re3
      • 2.Sxe3#
    • 1...R3h4
      • 2.Se3#
    • 1...R3h5
      • 2.Se3#
    • 1...R3h6
      • 2.Se3#
    • 1...Bf3
      • 2.Se3#
    • 1...Bxd5+
      • 2.Qxd5#
    • 1...S2f3
      • 2.Se3#
    • 1...S4f3
      • 2.Bxe2#
  • Keys
    • 1.Bg7!
      • threat
        • 2.Se5#
      • 1...Bxd5+
        • 2.Qxd5#
      • 1...Bd3
        • 2.Re5#
      • 1...S2f3
        • 2.Se3#
      • 1...S4f3
        • 2.Bxe2#
      • 1...Sc6
        • 2.Rdf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(e);N_GUARD::S(F)
    • R(e);N_GUARD::S(F),XR(e)
    • B(h);P_SPINS(g),S_CUTR(e)::S(F)
    • B(h);CHECK,OGATE,P_SPINB(h),P_SPINS(g),XR(G)::QAB1(L),XB(h)
    • S(b);S_CUTR(e)::S(F)
    • S(g);N_GUARD,P_SPINB(h),S_CUTR(e)::B(A),XQ(c)
  • Actual
    • B(H);
    • Threat
      • S(F)
    • Vars
      • B(h);CHECK,OGATE,P_SPINB(h),P_SPINS(g),XR(G)::QAB1(L),XB(h)
      • B(h);N_PINR(G),N_SPINQ(c),P_SPINS(g)::QAB(L)+R(G)
      • S(b);S_CUTR(e)::S(F)
      • S(g);N_GUARD,P_SPINB(h),S_CUTR(e)::B(A),XQ(c)
      • S(g);N_PINR(G),P_SPINB(h)::QAB(L)+R(G)
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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).