MESON Chess Problem Database

Problem Display
PID: 101618 (3n4/5N1K/BR5P/5k2/4pP1p/5nPP/8/5RB1 w - - 0 1)

Elbaz, Mohamed Jamal

diagrammes, 1989

3n4/5N1K/BR5P/5k2/4pP1p/5nPP/8/5RB1

#2

10 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.g4#
    • 1...Sxg1
      • 2.g4#
    • 1...Sd2
      • 2.g4#
    • 1...Sd4
      • 2.g4#
    • 1...Se5
      • 2.fxe5#
    • 1...Sg5+
      • 2.fxg5#
    • 1...Sxf7
      • 2.Bc8#
    • 1...e3
      • 2.Bd3#
  • Tries
    • 1.Kg7?
      • threat
        • 2.Rf6#
      • 1...Sc6
        • 2.Bc8#
      • 1...e3
        • 2.Bd3#
      • 1...Se6+!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Rf6#
      • 1...Sg5+
        • 2.fxg5#
      • 1...Sxd4
        • 2.g4#
      • 1...Sc6
        • 2.Bc8#
      • 1...e3
        • 2.Bd3#
      • 1...Se5
        • 2.fxe5#
      • 1...Se6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(a);::P(C)
    • S(a);XB(B)::P(C)
    • S(a);OGATE::R(A)+P(E),XS(a)
    • S(a);CHECK,OGATE::R(A)+P(E),XS(a)
    • S(e);N_GUARD,XS(I)::B(F)
    • P(b);OGATEB::B(F)
  • Tries
    • Try
      • K(J);P-FLIGHT
      • Threat
        • R1(G)
      • Vars
        • S(e);N_GUARD::B(F)
        • P(b);OGATEB::B(F)
      • Refutation
        • S(e);CHECK
  • Actual
    • B(B);
    • Threat
      • R1(G)
    • Vars
      • S(a);CHECK,OGATE::R(A)+P(E),XS(a)
      • S(a);XB(B)::P(C)
      • S(e);N_GUARD::B(F)
      • P(b);OGATEB::B(F)
      • S(a);OGATE::R(A)+P(E),XS(a)
      • S(e);SBLOCK::S(I)
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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).