Problem Display
PID: 276583 (6Q1/B1pp4/P1kn2p1/r1n1P3/p7/N4R2/6R1/3K2bB w - - 0 1)

Retter, Yosef

1/2 Comm., Pat a Mat 04. TT, 2006

6Q1/B1pp4/P1kn2p1/r1n1P3/p7/N4R2/6R1/3K2bB

#2

9 + 9


15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION


  • SOUND
  • Tries
    • 1.Rxg6?
      • threat
        • 2.Rc3#
      • 1...Sd3
        • 2.Qa8#
      • 1...Se4
        • 2.Qa8#
      • 1...Be3!
    • 1.Rc3?
      • threat
        • 2.Rxg6#
      • 1...Se4
        • 2.Qa8#
      • 1...g5!
    • 1.Rf6?
      • threat
        • 2.Rc2#
      • 1...Se4
        • 2.Qa8#
      • 1...Bf2!
  • Keys
    • 1.Rc2!
      • threat
        • 2.Rf6#
      • 1...Se4
        • 2.Qa8#
      • 1...Sf5
        • 2.Qa8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);P_PINS(f),XP(g)
      • Threat
        • B(B)+R(E)
      • Vars
        • S(d);N_GUARD::QAB(I)
      • Refutation
        • B(a);
    • Try
      • R(E);P_PINS(d)
      • Threat
        • B(B)+R(C),XP(g)
      • Vars
        • S(f);N_GUARD::QAB(I)
      • Refutation
        • P(g);
    • Try
      • R(E);P_PINS(f)
      • Threat
        • B(B)+R(C)
      • Vars
        • S(d);N_GUARD::QAB(I)
      • Refutation
        • B(a);
  • Actual
    • R(C);P_PINS(d)
    • Threat
      • B(B)+R(E)
    • Vars
      • S(f);N_GUARD::QAB(I)


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).