MESON Chess Problem Database

Problem Display
PID: 93862 (5RN1/3K3p/3P4/1p3np1/4kBBq/1P4p1/2p1Pbn1/2QN1R1b w - - 0 1)

Pituk, Alexander

Sachove umeni (Ceskoslovensky sach), 1952

5RN1/3K3p/3P4/1p3np1/4kBBq/1P4p1/2p1Pbn1/2QN1R1b

#2

11 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Bf3#
    • 1...Sd4
      • 2.Sc3#
      • 2.Sf6#
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qe5#
      • 1...Kxf4
        • 2.Qd4#
      • 1...Kd5
        • 2.Qe5#
      • 1...Sxf4
        • 2.Sf6#
      • 1...gxf4
        • 2.Bf3#
      • 1...Sd4
        • 2.Sc3#
      • 1...Bd4!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qe5#
      • 1...Kxf4
        • 2.Qd4#
      • 1...Kd5
        • 2.Qe5#
      • 1...Sxf4
        • 2.Sf6#
      • 1...gxf4
        • 2.Bf3#
      • 1...Bd4
        • 2.Qa8#
      • 1...Sd4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(c);SBLOCK::B(G)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • K(f);P-FLIGHT,P_SPINB(c),P_SPINS(i),XB(F)::QAR2(A)
        • K(f);S_FLIGHT::QAR1(A)
        • S(d);SBLOCK,XB(F)::S(K)
        • P(j);SBLOCK,XB(F)::B(G)
        • S(i);SBLOCK::S(B)
      • Refutation
        • B(c);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(f);P-FLIGHT,P_SPINB(c),P_SPINS(i),XB(F)::QAR2(A)
      • K(f);S_FLIGHT::QAR1(A)
      • S(d);SBLOCK,XB(F)::S(K)
      • P(j);SBLOCK,XB(F)::B(G)
      • B(c);SBLOCK::QAB(A)
      • S(i);SBLOCK::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).