MESON Chess Problem Database

Problem Display
PID: 38559 (1R4B1/N1Rp4/2b1r3/5N2/1nkB4/2n2Q2/2P5/7K w - - 0 1)

Telkes, Imre

Recomm., BCF 016. Ty., 1934-1935

1R4B1/N1Rp4/2b1r3/5N2/1nkB4/2n2Q2/2P5/7K

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Qb3#
    • 1...Scd5
      • 2.Qb3#
    • 1...Sd3
      • 2.cxd3#
    • 1...Sbd5
      • 2.Qd3#
    • 1...d5
      • 2.Qxc3#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Sa3#
        • 2.Sbd6#
        • 2.Se3#
        • 2.Sfd6#
      • 1...Sxc2
        • 2.Sbd6#
      • 1...Se4
        • 2.Se3#
        • 2.Qb3#
      • 1...Sba2
        • 2.Sa3#
        • 2.Sbd6#
      • 1...Sd3
        • 2.Sa3#
        • 2.Sbd6#
      • 1...Sbd5
        • 2.Sa3#
      • 1...Sa6
        • 2.Sa3#
        • 2.Sbd6#
      • 1...Sb1
        • 2.Sbd6#
        • 2.Se3#
        • 2.Sfd6#
      • 1...Sd1
        • 2.Sa3#
        • 2.Sbd6#
        • 2.Sfd6#
      • 1...Scd5
        • 2.Sa3#
        • 2.Qb3#
      • 1...d5
        • 2.Sa3#
        • 2.Qxc3#
      • 1...d6
        • 2.Sa3#
        • 2.Sbxd6#
        • 2.Se3#
        • 2.Sfxd6#
      • 1...Sxb5!
    • 1.Bxe6+?
      • 1...Scd5
        • 2.Qb3#
        • 2.Qc3#
      • 1...Sbd5
        • 2.Qxc3#
        • 2.Qd3#
      • 1...d5
        • 2.Qxc3#
      • 1...dxe6!
  • Keys
    • 1.Sc8!
      • threat
        • 2.Scd6#
      • 1...Se4
        • 2.Qb3#
      • 1...Sb5
        • 2.Sb6#
      • 1...Scd5
        • 2.Qb3#
      • 1...Sbd5
        • 2.Qd3#
      • 1...d5
        • 2.Qxc3#
      • 1...d6
        • 2.Scxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);N_PINQ(C)::QAB1(C)
    • S(a);N_PINQ(C),N_SPINR(e),SBLOCK::QAB1(C)
    • S(b);OGATE::P(B),XS(b)
    • S(b);N_PINQ(C),N_SPINR(e),SBLOCK::QAB1(C)
    • P(f);N_PINQ(C),N_SPINR(e),SBLOCK::QAR1(C),XS(a)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(4)
      • Vars
        • S(b);XP(B)::S(F)
        • S(b);N_PINQ(C),N_SPINR(e)::S(F)
      • Refutation
        • S(a);XS(F)
    • Try
      • B(I);CHECK,XR(e)
      • Vars
        • P(f);N_PINQ(C),P_SPINP(f)::QAR1(C),XS(a)
      • Refutation
        • P(f);XB(I)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • S(a);N_PINQ(C)::QAB1(C)
      • S(a);SBLOCK::S(F)
      • S(a);N_PINQ(C),N_SPINR(e),SBLOCK::QAB1(C)
      • S(b);N_PINQ(C),N_SPINR(e),SBLOCK::QAB1(C)
      • P(f);N_PINQ(C),N_SPINR(e),SBLOCK::QAR1(C),XS(a)
      • P(f);::S(F),XP(f)
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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).