MESON Chess Problem Database

Problem Display
PID: 72588 (B1K5/1N6/3Pp3/2Q1p2N/Rn1nk1P1/b1p3p1/2rPP3/6q1 w - - 0 1)

Taale, Cornelius J

Tijdschrift vd KNSB, 1936

B1K5/1N6/3Pp3/2Q1p2N/Rn1nk1P1/b1p3p1/2rPP3/6q1

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Sa5#
      • 2.Sd8#
      • 2.Qc6#
    • 1...Sd3
      • 2.Sa5#
      • 2.Sd8#
      • 2.Qc6#
    • 1...Sa6
      • 2.Sa5#
      • 2.Sd8#
      • 2.Qc6#
    • 1...Sbc6
      • 2.Qxc6#
    • 1...Sb3
      • 2.Sa5#
      • 2.Sd8#
      • 2.d3#
    • 1...Sf3
      • 2.Sa5#
      • 2.Sd8#
      • 2.d3#
    • 1...Sb5
      • 2.Sa5#
      • 2.Sd8#
      • 2.d3#
    • 1...Sf5
      • 2.Sa5#
      • 2.Sd8#
      • 2.d3#
    • 1...Sdc6
      • 2.d3#
  • Tries
    • 1.Sa5+?
      • 1...Sbc6
        • 2.Bxc6#
        • 2.Qxc6#
      • 1...Sdc6
        • 2.Bxc6#
        • 2.d3#
      • 1...Sd5!
    • 1.Sd8+?
      • 1...Sbc6
        • 2.Bxc6#
        • 2.Qxc6#
      • 1...Sdc6
        • 2.Bxc6#
        • 2.d3#
      • 1...Sd5!
  • Keys
    • 1.Qxc3!
      • threat
        • 2.Sc5#
      • 1...Kd5
        • 2.Sf6#
      • 1...Sd5
        • 2.Qxc2#
      • 1...Sbc6
        • 2.Qf3#
      • 1...Sdc6
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);N_GUARD,P_SPINS(g)::QAB(E),XS(f)
    • S(g);P_SPINS(f)::P(A)
  • Tries
    • Try
      • S(H);CHECK
      • Refutation
        • S(f);P_SPINS(g)
    • Try
      • S(H);CHECK
      • Refutation
        • S(f);P_SPINS(g)
  • Actual
    • Q(E);P_SPINQ(E),XP(d)
    • Threat
      • B(I)+S(H),DCHECK
    • Vars
      • K(h);S_FLIGHT::S(F)
      • S(f);N_GUARD,P_SPINS(g),SBLOCK::QAB(E),XR(b)
      • S(f);N_PINQ(E),P_SPINS(g)::QAB1(E)
      • S(g);N_PINQ(E),P_SPINS(f)::QAB1(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).