Problem Display
PID: 229277 (6K1/4p1pB/2p3r1/3kp3/Q3N1P1/3pP3/3P4/8 w - - 0 1)

L'Hermet, Johann Georg Rudolf

Magyar Sakkvilag, 1926

6K1/4p1pB/2p3r1/3kp3/Q3N1P1/3pP3/3P4/8

#2

7 + 7


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qxc6#
    • 1...Rxg4
      • 2.Qb3#
      • 2.Qa2#
    • 1...Rg5
      • 2.Qb3#
      • 2.Qa2#
    • 1...Rd6
      • 2.Qb3#
      • 2.Qa2#
    • 1...Re6
      • 2.Qb3#
      • 2.Qa2#
    • 1...Rf6
      • 2.Qb3#
      • 2.Qa2#
    • 1...Rh6
      • 2.Qb3#
      • 2.Qa2#
  • Tries
    • 1.Bxg6?
      • threat
        • 2.Qb3#
        • 2.Qa2#
      • 1...Ke6
        • 2.Qxc6#
      • 1...c5!
  • Keys
    • 1.Qa6!
      • 1...Kxe4
        • 2.Qxc6#
      • 1...Ke6
        • 2.Qxc6#
      • 1...Rxg4
        • 2.Qa2#
      • 1...c5
        • 2.Sc3#
      • 1...Rg5
        • 2.Qa2#
      • 1...Rd6
        • 2.Qa2#
      • 1...Re6
        • 2.Qxd3#
        • 2.Qa2#
      • 1...Rf6
        • 2.Qa2#
      • 1...Rh6
        • 2.Qa2#
      • 1...e6
        • 2.Qxd3#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR2(C),XP(d)
  • Tries
    • Try
      • B(F);XR(e)
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::QAR2(C),XP(d)
      • Refutation
        • P(d);
  • Actual
    • Q(C);
    • Vars
      • K(b);P_SPINR(e),S_FLIGHT,XS(D)::QAB(C),XP(d)
      • K(b);P_SPINP(d),S_FLIGHT::QAR2(C),XP(d)
      • R(e);XP(E)::QAB(C)
      • P(d);SBLOCK::S(D)
      • R(e);::QAB(C)
      • P(f);SBLOCK::QAR2(C),XP(a)


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).