MESON Chess Problem Database

Problem Display
PID: 183132 (8/3p4/K5N1/4bb2/5R2/3pk3/1p4Q1/3n4 w - - 0 1)

Corrias, Antonio G

2nd Prize Set, Norwich Mercury, 1907

8/3p4/K5N1/4bb2/5R2/3pk3/1p4Q1/3n4

#2

4 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Re4#
    • 1...Be4
      • 2.Rxe4#
    • 1...Bg4
      • 2.Re4#
    • 1...Be6
      • 2.Re4#
    • 1...Sf2
      • 2.Qxf2#
    • 1...Sc3
      • 2.Qf2#
    • 1...d2
      • 2.Qf3#
  • Keys
    • 1.Se7!
      • threat
        • 2.Sd5#
      • 1...Kxf4
        • 2.Sd5#
      • 1...Bxf4
        • 2.Sxf5#
      • 1...Be4
        • 2.Rxe4#
      • 1...Sf2
        • 2.Qxf2#
      • 1...d2
        • 2.Qf3#
      • 1...Be6
        • 2.Re4#
      • 1...Sc3
        • 2.Qf2#
      • 1...d5
        • 2.Sxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(f);N_GUARD::R1(B)
    • B(f);N_GUARD::R1(B),XB(f)
    • S(a);N_GUARD::QAB1(A),XS(a)
    • S(a);N_GUARD::QAB1(A)
    • P(c);SBLOCK::QAR1(A)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(d);S_FLIGHT,XR(B)::S(D)
      • B(e);SBLOCK,XR(B)::S(D),XB(f)
      • B(f);N_GUARD::R1(B),XB(f)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • P(c);SBLOCK::QAR1(A)
      • B(f);N_GUARD::R1(B)
      • S(a);N_GUARD::QAB1(A)
      • P(g);::S(D),XP(g)
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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).