MESON Chess Problem Database

Problem Display
PID: 110032 (6bK/6QB/8/2p1Pr1p/n1p1n2r/R1bk4/2N1RP2/6N1 w - - 0 1)

Cacciari, Europe

Il Littorale, 1929-1931

6bK/6QB/8/2p1Pr1p/n1p1n2r/R1bk4/2N1RP2/6N1

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Qg3#
    • 1...Sxf2
      • 2.Qg3#
    • 1...Sg3
      • 2.Qxg3#
    • 1...Sd6
      • 2.Qg3#
    • 1...Sf6
      • 2.Qg3#
  • Tries
    • 1.Qg3+?
      • 1...Rf3
        • 2.Qxf3#
      • 1...Sxg3!
    • 1.Qd7+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sd6!
  • Keys
    • 1.e6!
      • threat
        • 2.Se1#
      • 1...Re5
        • 2.Qg3#
      • 1...Rf6
        • 2.Qd7#
      • 1...Sf6
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(h);N_GUARD,P_SPINS(e),XP(F)::QAR(G)
    • S(e);N_GUARD,P_SPINR(h),XP(D)::QAR(G)
    • S(e);N_GUARD,P_SPINR(h)::QAR(G),XS(e)
    • S(e);N_GUARD,P_SPINR(h)::QAR(G)
  • Tries
    • Try
      • Q(G);CHECK,P_SPINP(F)
      • Vars
        • R(h);N_GUARD,P_SPINR(h),P_SPINS(e)::QAR2(G),XR(h)
      • Refutation
        • S(e);P_SPINR(h),XQ(G)
    • Try
      • Q(G);CHECK,P_SPINP(F)
      • Vars
        • B(j);N_GUARD::QAR2(G),XB(j)
      • Refutation
        • S(e);P_SPINR(h),P_SPINS(e)
  • Actual
    • P(F);P_SPINQ(G)
    • Threat
      • S(B)
    • Vars
      • R(h);N_PINQ(G),P_SPINS(e)::QAR(G)
      • S(e);N_PINQ(G),P_SPINR(h)::QAR(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).