MESON Chess Problem Database

Problem Display
PID: 168374 (Q7/2PK4/4Np2/2bpk3/4r3/3B1R2/8/8 w - - 0 1)

Petite, Efren

Sachove umeni (Ceskoslovensky sach), 2005

Q7/2PK4/4Np2/2bpk3/4r3/3B1R2/8/8

#2

6 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Rf5#
    • 1...Re2
      • 2.Rf5#
    • 1...Re3
      • 2.Rf5#
    • 1...Ra4
      • 2.Rf5#
    • 1...Rb4
      • 2.Rf5#
    • 1...Rc4
      • 2.Rf5#
    • 1...Rd4
      • 2.Rf5#
    • 1...Rg4
      • 2.Rf5#
    • 1...Rh4
      • 2.Rf5#
    • 1...d4
      • 2.Qxe4#
    • 1...f5
      • 2.Qh8#
  • Tries
    • 1.Sd8?
      • threat
        • 2.Sc6#
      • 1...Kd4
        • 2.Qa1#
      • 1...d4
        • 2.Sf7#
        • 2.Qxe4#
      • 1...f5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sc6#
      • 1...Kxd4
        • 2.Qa1#
      • 1...Rxd4
        • 2.Rf5#
      • 1...Bxd4
        • 2.Qe8#
      • 1...f5
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • R(a);::R1(B)
    • P(c);OGATE::QAR1(F),XR(a)
    • P(e);OGATEB::QAB(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • K(d);S_FLIGHT::QAB(F)
      • Refutation
        • P(e);
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(C)::QAB(F)
      • R(a);SBLOCK,XS(C)::R1(B)
      • B(b);N_GUARD,SBLOCK,XS(C)::QAR(F)
      • P(e);OGATEB::QAB(F)
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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).