MESON Chess Problem Database

Problem Display
PID: 169880 (4B3/2p3pK/Rb6/1R3pkN/1q3n1p/rn6/7P/2BQ4 w - - 0 1)

Peris Pardo, Julio

4th HM., SEPA, 1945

4B3/2p3pK/Rb6/1R3pkN/1q3n1p/rn6/7P/2BQ4

#2

8 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Bxf4#
    • 1...Qc3
      • 2.Bxf4#
    • 1...Qa5
      • 2.Bxf4#
    • 1...Qc5
      • 2.Bxf4#
    • 1...Qe7
      • 2.Bxf4#
    • 1...Qf8
      • 2.Bxf4#
    • 1...Qxb5
      • 2.Bxf4#
    • 1...Bg1
      • 2.Rg6#
      • 2.Qxg1#
    • 1...Bf2
      • 2.Rg6#
    • 1...Bd4
      • 2.Bxf4#
      • 2.Rg6#
    • 1...Ba5
      • 2.Rg6#
      • 2.Qg1#
    • 1...Bc5
      • 2.Rg6#
    • 1...Ba7
      • 2.Rg6#
    • 1...Sd4
      • 2.Bxf4#
    • 1...c5
      • 2.Qg1#
  • Keys
    • 1.h3!
      • threat
        • 2.Qg4#
      • 1...Qxb5
        • 2.Bxf4#
        • 2.Qd8#
      • 1...Qc5
        • 2.Bxf4#
      • 1...Bc5
        • 2.Rg6#
      • 1...Sc5
        • 2.Qd8#
      • 1...c5
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(c);N_GUARD::B(A),XS(d)
    • Q(c);N_GUARD,N_SPINP(f)::B(A),XS(d)
    • Q(c);N_GUARD,N_SPINP(f),XR(D)::B(A),XS(d)
    • B(h);OGATE::R1(F)
    • B(h);N_SPINP(f),OGATE::R1(F)
    • S(b);S_CUTQ(c)::B(A),XS(d)
    • P(i);N_SPINP(f),S_CUTB(h)::QAR(B)
  • Actual
    • P(C);
    • Threat
      • QAR1(B)
    • Vars
      • Q(c);N_GUARD,N_SPINP(f)::B(A),XS(d)
      • B(h);N_SPINP(f),OGATE::R1(F)
      • S(b);N_SPINP(f),S_CUTQ(c)::QAB(B)
      • P(i);N_SPINP(f),S_CUTB(h)::QAR(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).