MESON Chess Problem Database

Problem Display
PID: 223316 (1K6/7B/5P2/2p3N1/2P2k2/4N1qR/4R3/Q7 w - - 0 1)

Nemo, Ottmar (Weiss, Ottmar)

Charleston Sunday News, 1886

1K6/7B/5P2/2p3N1/2P2k2/4N1qR/4R3/Q7

#2

9 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Se6#
    • 1...Qf2
      • 2.Se6#
    • 1...Qh2
      • 2.Se6#
    • 1...Qh4
      • 2.Se6#
    • 1...Qg1
      • 2.Se6#
    • 1...Qg2
      • 2.Se6#
    • 1...Qf3
      • 2.Se6#
    • 1...Qxg5
      • 2.Rf2#
  • Keys
    • 1.Rg2!
      • 1...Kxe3+
        • 2.Qe5#
      • 1...Kxg5+
        • 2.Qe5#
      • 1...Qxg2
        • 2.Se6#
      • 1...Qxe3
        • 2.Rh4#
      • 1...Qxh3
        • 2.Sd5#
      • 1...Qxg5
        • 2.Rf2#
      • 1...Qe1
        • 2.Sd5#
        • 2.Se6#
        • 2.Rg4#
        • 2.Rf3#
      • 1...Qf2
        • 2.Sd5#
        • 2.Se6#
        • 2.Rg4#
      • 1...Qh2
        • 2.Sd5#
        • 2.Se6#
        • 2.Rg4#
        • 2.Rf3#
      • 1...Qh4
        • 2.Sd5#
        • 2.Se6#
        • 2.Rf3#
      • 1...Qf3
        • 2.Rxf3#
      • 1...Qg4
        • 2.Rxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • Q(a);::S(F)
    • Q(a);N_GUARD,SBLOCK,XS(F)::R(B)
  • Actual
    • R(B);
    • Vars
      • K(b);CHECK,P_SPINQ(a),S_FLIGHT,XS(C)::QAR2(A)
      • K(b);CHECK,P_SPINQ(a),S_FLIGHT,XS(F)::QAR2(A)
      • Q(a);XR(B)::S(F)
      • Q(a);N_GUARD,SBLOCK,XS(C)::R(D)
      • Q(a);XR(D)::S(C)
      • Q(a);N_GUARD,SBLOCK,XS(F)::R(B)
      • Q(a);OGATE::R1(D),XQ(a)
      • Q(a);OGATE::R1(B),XQ(a)
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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).