MESON Chess Problem Database

Problem Display
PID: 243617 (b1BB4/K1Nn2r1/R1pk2qR/2n5/1PPp1P2/5N2/8/Q5b1 w - - 0 1)

Bakay, Bela

Magyar Sakkvilag, 1943

b1BB4/K1Nn2r1/R1pk2qR/2n5/1PPp1P2/5N2/8/Q5b1

#2

11 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Sb5#
      • 2.Se8#
    • 1...Bh2
      • 2.Qxd4#
    • 1...Se6
      • 2.Sb5#
    • 1...Se5
      • 2.fxe5#
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Sdb5#
        • 2.Sf5#
        • 2.Scb5#
        • 2.Se8#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...Sxa6
        • 2.Se8#
      • 1...Re7
        • 2.Sdb5#
        • 2.Sf5#
        • 2.Scb5#
      • 1...Rf7
        • 2.Sdb5#
        • 2.Scb5#
        • 2.Se8#
      • 1...Rg8
        • 2.Sdb5#
        • 2.Sf5#
        • 2.Scb5#
      • 1...Sb3
        • 2.Sb5#
        • 2.Se8#
      • 1...Sd3
        • 2.Sb5#
        • 2.Se8#
      • 1...Sa4
        • 2.Sb5#
        • 2.Se8#
      • 1...Se4
        • 2.Sb5#
        • 2.Se8#
      • 1...Se6
        • 2.Sb5#
      • 1...Sb7
        • 2.Sb5#
        • 2.Se8#
        • 2.Rxc6#
      • 1...Se5
        • 2.Sb5#
        • 2.Sf5#
      • 1...Sb6
        • 2.Sf5#
      • 1...Sf6
        • 2.Sb5#
      • 1...Sb8
        • 2.Sb5#
        • 2.Sf5#
      • 1...Sf8
        • 2.Sb5#
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAR2(A),XP(b)
    • S(c);N_SPINQ(f),SBLOCK::S(I)
    • S(g);OGATE,P_PINS(I)::P(E),XS(g)
  • Actual
    • S(B);XP(b)
    • Threat
      • DUALS(4)
    • Vars
      • B(a);OGATE,XS(B)::QAR2(A),XB(a)
      • S(c);N_SPINP(d),P_PINS(B),XR(F)::S(I)
      • S(c);N_SPINQ(f),P_PINS(B)::S(I)
      • S(g);N_SPINP(d),P_PINS(I)::S(B)
      • S(g);N_SPINQ(f),P_PINS(I)::S(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).