MESON Chess Problem Database

Problem Display
PID: 72687 (4R2b/2K5/Q2Nb1p1/2Pp4/3k1P2/1p4NR/1Pp1rp2/2n2B2 w - - 0 1)

Foschini, Ettore

2/3 HM., L'Alfiere di Re, 1922-1923

4R2b/2K5/Q2Nb1p1/2Pp4/3k1P2/1p4NR/1Pp1rp2/2n2B2

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qb6#
  • Tries
    • 1.Sxe2+?
      • 1...Kxc5
        • 2.Qb5#
        • 2.Qa3#
        • 2.Qa5#
        • 2.Qb6#
      • 1...Sxe2!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qc3#
      • 1...Kd3
        • 2.Sgf5#
      • 1...Ke3
        • 2.Sxe2#
      • 1...Re3
        • 2.Qb4#
      • 1...Sa2
        • 2.Sxe2#
      • 1...Sd3
        • 2.Sxe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • K(f);OGATEB,S_FLIGHT,XP(F)::QAB1(G)
  • Tries
    • Try
      • S(C);CHECK,XR(c)
      • Refutation
        • S(a);XS(C)
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • K(f);P-FLIGHT,P_SPINR(c)::R(D)+S(C)
      • K(f);P_SPINB(h),S_FLIGHT::R(D)+S(C),XR(c)
      • R(c);SBLOCK::QAR2(G)
      • S(a);N_GUARD::S(C),XR(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).