MESON Chess Problem Database

Problem Display
PID: 249622 (8/3R2p1/8/1p2pP2/nN2k1B1/8/6n1/2Q4K w - - 0 1)

Michels, Friedrich

Deutsche Schachzeitung, 1903

8/3R2p1/8/1p2pP2/nN2k1B1/8/6n1/2Q4K

#2

6 + 6

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qc6+?
      • 1...Ke3
        • 2.Qf3#
      • 1...Kf4!
  • Keys
    • 1.Sd5!
      • 1...Kd3
        • 2.Sf6#
      • 1...Kd4
        • 2.Sf6#
      • 1...Se1
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sf4
        • 2.Qe3#
      • 1...Sh4
        • 2.Qe3#
      • 1...Sb2
        • 2.Sc3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Sc5
        • 2.Sc3#
      • 1...Sb6
        • 2.Sc3#
      • 1...b4
        • 2.Qc4#
      • 1...g5
        • 2.Sf6#
      • 1...g6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(c);S_FLIGHT::R(F)+S(C)
      • K(c);P-FLIGHT::R(F)+S(C)
      • S(a);N_GUARD::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
      • S(b);N_GUARD::S(C)
      • S(b);N_GUARD::S(C),XS(b)
      • P(d);N_GUARD::QAR2(A)
      • P(f);N_GUARD::S(C)
HTML5 logo

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).