MESON Chess Problem Database

Problem Display
PID: 109768 (8/8/2Q3n1/1R2pp1K/b2BNkpp/r7/1n2P3/2bN2R1 w - - 0 1)

Zarur, Almiro Elias

Boletim da UBP, 1962

8/8/2Q3n1/1R2pp1K/b2BNkpp/r7/1n2P3/2bN2R1

#2

8 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Rf1#
    • 1...Ra2
      • 2.Rf1#
    • 1...Bb3
      • 2.Rf1#
    • 1...Se7
      • 2.Bxe5#
    • 1...Sf8
      • 2.Bxe5#
    • 1...Sh8
      • 2.Bxe5#
    • 1...fxe4
      • 2.Qf6#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Se6#
      • 1...Sf8
        • 2.Qh6#
      • 1...Bb3!
    • 1.Qxc1+?
      • 1...Re3
        • 2.Qxe3#
      • 1...Kxe4!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Se6#
      • 1...Bb3
        • 2.Qxc1#
      • 1...Sf8
        • 2.Bxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD::R(B)
    • B(d);S_CUTR(c)::R(B)
    • S(j);N_GUARD::B(D),XP(h)
    • P(i);OGATEB,SBLOCK,XS(E)::QAR2(H)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • S(j);OGATE::QAB(H)
      • Refutation
        • B(d);
    • Try
      • Q(H);CHECK,XB(a)
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAB1(H),XR(c)
      • Refutation
        • K(e);P-FLIGHT,XS(E)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • B(d);S_CUTR(c)::QAB(H),XB(a)
      • S(j);N_GUARD::B(D),XP(h)
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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).