MESON Chess Problem Database

Problem Display
PID: 102011 (8/1K1pn1p1/1n5B/1R2PkNB/8/2Qp1NP1/1b3R2/4rq1b w - - 0 1)

Cuppini, Alessandro

Umenie 64, 2005

8/1K1pn1p1/1n5B/1R2PkNB/8/2Qp1NP1/1b3R2/4rq1b

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Sd4#
      • 2.Sh4#
    • 1...Sbd5
      • 2.Sh4#
    • 1...Sed5
      • 2.Sh4#
    • 1...Sc6
      • 2.Sd4#
      • 2.Sh4#
    • 1...d5
      • 2.Sh4#
  • Tries
    • 1.Qxd3+?
      • 1...Re4
        • 2.Sd4#
        • 2.Sh4#
        • 2.Qxe4#
      • 1...Qxd3!
    • 1.e6+?
      • 1...Sbd5
        • 2.Sh4#
      • 1...Sed5
        • 2.Sh4#
      • 1...d5
        • 2.Sh4#
      • 1...Re5!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Sd4#
        • 2.Sh4#
      • 1...Qxf2
        • 2.Sh4#
      • 1...Bxf3
        • 2.Qxf3#
      • 1...gxh6
        • 2.Qf6#
      • 1...Bd4
        • 2.Sxd4#
        • 2.Sh4#
      • 1...Sbd5
        • 2.Qxd7#
      • 1...Sed5
        • 2.Qg6#
      • 1...d5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(g);N_PINS(C)::R(A)+S(C),DCHECK
    • S(i);N_PINS(C)::R(A)+S(C),DCHECK
    • P(h);N_PINS(C)::R(A)+S(C),DCHECK
  • Tries
    • Try
      • Q(B);CHECK,XP(e)
      • Refutation
        • Q(b);XQ(B)
    • Try
      • P(F);CHECK
      • Vars
        • S(g);N_PINS(C),P_SPINS(g)::R(A)+S(C),DCHECK
        • S(i);N_PINS(C),P_SPINS(i)::R(A)+S(C),DCHECK
        • P(h);N_PINS(C),P_SPINP(h)::R(A)+S(C),DCHECK
      • Refutation
        • R(a);P_SPINR(a)
  • Actual
    • Q(B);N_SPINS(C)
    • Threat
      • DUALS(2)
    • Vars
      • Q(b);XR(A)::S(C)
      • B(c);OGATE,P_PINQ(B),P_SPINB(c),XS(C)::QAR2(B),XB(c)
      • P(j);N_GUARD,XB(I)::QAR1(B)
      • S(g);N_GUARD::QAB(B),XP(h)
      • S(i);N_GUARD::QAB1(B)
      • P(h);N_GUARD::QAB1(B)
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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).