MESON Chess Problem Database

Problem Display
PID: 96296 (1b4B1/2n2Rp1/3kp1p1/3ppP2/4PnN1/N2p1P2/7B/2Q4K w - - 0 1)

Brabec, Juraj

Problem (Zagreb), 1962

1b4B1/2n2Rp1/3kp1p1/3ppP2/4PnN1/N2p1P2/7B/2Q4K

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba7
      • 2.Qxc7#
    • 1...Se2
      • 2.Bxe5#
    • 1...Sg2
      • 2.Bxe5#
    • 1...Sh3
      • 2.Bxe5#
    • 1...Sh5
      • 2.Bxe5#
    • 1...Sb5
      • 2.Sxb5#
    • 1...Sa6
      • 2.Sb5#
    • 1...Sa8
      • 2.Sb5#
    • 1...Se8
      • 2.Sb5#
  • Tries
    • 1.Rxc7?
      • threat
        • 2.Sb5#
        • 2.Qc5#
        • 2.Qc6#
      • 1...dxe4
        • 2.Qc5#
        • 2.Qc6#
      • 1...Ba7
        • 2.Sb5#
        • 2.Qc6#
      • 1...Bxc7!
    • 1.exd5?
      • threat
        • 2.Qc6#
      • 1...Kxd5
        • 2.Rd7#
      • 1...Sfxd5
        • 2.Bxe5#
      • 1...Scxd5
        • 2.Sb5#
      • 1...exd5!
  • Keys
    • 1.fxe6!
      • threat
        • 2.Rd7#
      • 1...Kxe6
        • 2.Qc6#
      • 1...Sfxe6
        • 2.Bxe5#
      • 1...Scxe6
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • B(j);N_GUARD::QAB1(A),XS(h)
    • S(b);OGATE,P_SPINP(d)::B(C),XP(d)
    • S(h);N_GUARD::S(D),XS(h)
    • S(h);N_GUARD::S(D)
  • Tries
    • Try
      • R(I);XS(h)
      • Threat
        • DUALS(3)
      • Refutation
        • B(j);XR(I)
    • Try
      • P(F);XP(c)
      • Threat
        • QAR1(A)
      • Vars
        • K(e);P-FLIGHT,XP(F)::R(I)
        • S(b);OGATE,P_SPINP(d),SBLOCK,XP(F)::B(C),XP(d)
        • S(h);N_GUARD,SBLOCK,XP(F)::S(D)
      • Refutation
        • P(f);XP(F)
  • Actual
    • P(H);XP(f)
    • Threat
      • R1(I)
    • Vars
      • K(e);P-FLIGHT,XP(H)::QAR2(A)
      • S(b);OGATE,P_SPINP(d),SBLOCK,XP(H)::B(C),XP(d)
      • S(h);N_GUARD,SBLOCK,XP(H)::S(D)
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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).