MESON Chess Problem Database

Problem Display
PID: 223400 (8/3Qp3/3P4/3kp3/PP6/2R5/2NK2n1/8 w - - 0 1)

Wehse, Wilhelm

Wiener Hausfrauen-Zeitung, 1886

8/3Qp3/3P4/3kp3/PP6/2R5/2NK2n1/8

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Rc5#
    • 1...e6
      • 2.Qc6#
  • Tries
    • 1.Rd3+?
      • 1...Kc4
        • 2.Qb5#
        • 2.Qc6#
        • 2.Qe6#
        • 2.Qc8#
        • 2.Qc7#
      • 1...Ke4!
    • 1.Qb7+?
      • 1...Kxd6
        • 2.Qc6#
      • 1...Ke6!
  • Keys
    • 1.Rc4!
      • 1...Kxc4
        • 2.Qe6#
      • 1...exd6
        • 2.Qf7#
      • 1...e4
        • 2.Rc5#
      • 1...Se1
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#
      • 1...Sf4
        • 2.Se3#
      • 1...Sh4
        • 2.Se3#
      • 1...e6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::R1(C)
    • P(d);SBLOCK::QAB1(G)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(F)::QAR1(G)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(b);S_FLIGHT,XR(C)::QAB(G)
      • P(d);OGATE,P_SPINP(d),SBLOCK,XP(F)::QAB(G)
      • P(c);SBLOCK::R1(C)
      • S(a);N_GUARD::S(A)
      • S(a);N_GUARD::S(A),XS(a)
      • P(d);SBLOCK::QAB1(G)
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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).