MESON Chess Problem Database

Problem Display
PID: 110021 (K3kb2/1R2p1R1/3p1p2/B1pr1rp1/P1p3p1/8/4B1Q1/8 w - - 0 1)

Pasqualini, Giuseppe

Il Littorale, 1929-1931

K3kb2/1R2p1R1/3p1p2/B1pr1rp1/P1p3p1/8/4B1Q1/8

#2

7 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qc6#
    • 1...Rd2
      • 2.Qc6#
    • 1...Rd3
      • 2.Qc6#
    • 1...Rd4
      • 2.Qc6#
    • 1...Rde5
      • 2.Qc6#
    • 1...c3
      • 2.Bb5#
    • 1...g3
      • 2.Bh5#
    • 1...e5
      • 2.Rb8#
    • 1...e6
      • 2.Rb8#
  • Tries
    • 1.Qh3?
      • threat
        • 2.Qh5#
      • 1...gxh3
        • 2.Bh5#
      • 1...Bxg7!
  • Keys
    • 1.Qe4!
      • 1...Bxg7
        • 2.Qxe7#
      • 1...Rf1
        • 2.Qg6#
      • 1...Rd1
        • 2.Qc6#
      • 1...Rd2
        • 2.Qc6#
      • 1...Rd3
        • 2.Qc6#
      • 1...Rd4
        • 2.Qc6#
      • 1...Rde5
        • 2.Qc6#
      • 1...Rf2
        • 2.Qg6#
      • 1...Rf3
        • 2.Qg6#
      • 1...Rf4
        • 2.Qg6#
      • 1...Rfe5
        • 2.Qg6#
      • 1...c3
        • 2.Bb5#
      • 1...g3
        • 2.Bh5#
      • 1...e5
        • 2.Rb8#
      • 1...e6
        • 2.Rb8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(d);OGATE::QAB(B)
    • P(a);OGATE::B(A)
    • P(b);OGATE::B(A)
    • P(i);::R(E)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB(B)
      • Vars
        • P(b);OGATE,XQ(B)::B(A)
      • Refutation
        • B(k);XR(F)
  • Actual
    • Q(B);P_PINP(i)
    • Vars
      • B(k);N_GUARD,XR(F)::QAR1(B),XP(i)
      • R(e);OGATE::QAB(B)
      • R(d);OGATE::QAB(B)
      • R(d);N_SPINP(i),OGATE::QAB(B)
      • R(e);N_SPINP(i),OGATE::QAB(B)
      • P(a);OGATE::B(A)
      • P(b);OGATE::B(A)
      • P(i);::R(E)
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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).